Initial commit — Meridian OS browser desktop demo

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2026-04-19 23:18:55 +00:00
commit 8e30dd3597
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node_modules/
.DS_Store
*.log
.env
.env.local

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# Meridian OS — PRD
## Vision
A browser-based desktop environment for a video game. Elegant, restrained,
gamer-literate without being loud. No emoji stuffing, no AI-slop aesthetics.
## Personas
- Player who boots the in-game computer and wants to feel at home.
- Easter-egg hunter who wants rewards for exploration.
## Core Requirements
1. Login screen (any username, stored locally, avatar = initials).
2. Desktop with changeable wallpaper (gallery of 6 curated gradients/images).
3. Taskbar: start-equivalent launcher, active apps, widgets tray, status bar.
4. Status bar: username, time (live), connection state, date.
5. Widgets: date, active applications. Optional: achievements tray.
6. Window manager: drag, focus, minimize, close. Multi-window.
7. Apps:
- Notepad (text editing, localStorage persistence)
- Music player (3 tracks, play/pause/skip/seek, volume)
- Terminal (command parser, easter eggs, ANSI-ish styling)
- Spoof: Steam, VS Code, Postman, Chrome (static-but-believable UIs)
8. Special feature: Achievement system (game-flavored, tracks real usage).
## Non-Requirements
- Real authentication
- Real networking
- Real OS features (files beyond localStorage)
## Aesthetic Direction
- Palette: slate/graphite base (#0f1114, #1a1d21, #252a31), amber accent (#d4a24c).
- Type: Inter (400/500/600).
- Borders: 1px rgba(255,255,255,0.060.1).
- Shadows: subtle only; never blurry-neon.
- Motion: 150220ms ease-out; no bounce, no parallax.
- No emojis in chrome. Allowed sparingly in content (terminal output, toasts).
## Easter Eggs (Terminal)
Elden Ring: praise_the_sun, tarnished, "try finger, but hole"
CoD: dropshot, 360_noscope, mw2
FIFA: siuuu, golazo, wonderkid
Misc: konami, matrix, sudo rm -rf /
## Achievements (sample)
- "First Grace" — log in for the first time (ER)
- "Getting Tactical" — run 5 terminal commands (CoD)
- "Career Mode" — open 3 different apps (FIFA)
- "Tarnished Typist" — type 500 chars in notepad
- "DJ" — play music for 30s straight
- "Speedrun" — open and close a window in under 2s
- "Dataminer" — find all 3 hidden terminal commands
## Success Criteria
- Loads in <2s on localhost.
- No console errors on a cold boot.
- Every app opens, stays usable, closes cleanly.
- At least 5 achievements unlockable through ordinary play.
- Zero emoji-stuffed UI elements. Zero gradient soup.
## Storage of This Doc
Decide at end: Docmost (team-readable), Plane (sprint-attached), or local.

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# Meridian OS
A browser-based desktop environment designed to live inside a video game.
Elegant, restrained, gamer-literate — no AI-slop aesthetics, no emoji stuffing.
## Live Demo
```bash
git clone https://git.nuri.works/nuri-ai/meridian-os.git
cd meridian-os
./serve.sh # Starts on http://localhost:8921
```
Open the URL, type any name to log in, start exploring.
## Features
- **Login screen** with persistent session (localStorage)
- **Six wallpapers** — Graphite, Ember, Tide, Vellum, Eclipse, Terminal — with crossfade transition
- **Window manager** — draggable, minimizable, closeable, cascading layout, focus-on-click
- **Taskbar** with launcher, active-app chips, and status bar (user initials, connection dot, live clock)
- **Widgets tray** — clock + date, active apps, achievements
- **Seven apps:**
- Notepad (auto-save, word count)
- Music Player (three tracks, play/pause/seek/volume)
- Terminal (real commands + twelve gamer easter eggs)
- Steam (spoof library with seven titles)
- VS Code (spoof editor with fake TypeScript highlighting)
- Postman (spoof request builder with fake responses)
- Chrome (spoof browser-in-browser with shortcut tiles)
- **Achievement system** — ten achievements across Elden Ring, Call of Duty, and FIFA, unlocked through real usage
## Terminal Easter Eggs
Try these in the Terminal app:
| Command | Response |
| --- | --- |
| `praise_the_sun` | Elden Ring grace quote |
| `tarnished` | Elden Ring greeting |
| `try finger, but hole` | Dark Souls message joke |
| `siuuu` | FIFA celebration |
| `golazo` | FIFA broadcast line |
| `wonderkid` | FIFA career-mode regen joke |
| `dropshot` | CoD hitmarker |
| `360_noscope` | CoD montage ASCII |
| `mw2` | Classic callback |
| `konami` | Cheat code joke |
| `matrix` | ASCII rain animation |
All real commands work too: `help`, `ls`, `whoami`, `date`, `uname`, `echo`, `cat`, `clear`, `history`, `achievements`, `exit`.
## Architecture
```
index.html
├─ css/
│ ├─ tokens.css Design tokens (colors, type, spacing)
│ ├─ reset.css
│ ├─ shell.css Desktop, taskbar, login, wallpaper
│ ├─ window.css Window chrome, resize, drag
│ └─ apps.css Per-app styles (scoped by [data-app])
└─ js/
├─ main.js Entry + app registration
├─ core/ state, auth, wm, registry, bus
├─ widgets/ clock, active-apps, achievements, wallpaper
├─ apps/ notepad, music, terminal, steam, vscode, postman, chrome
└─ achievements/ catalog + engine
```
No build step. No frameworks. Vanilla JavaScript ES modules.
## Design Tokens
- Base: `#0f1114` (slate), `#1a1d21` (chrome), `#252a31` (elevated)
- Accent: `#d4a24c` (amber)
- Font: Inter 400 / 500 / 600
- Borders: 1px at 614% white
- No heavy shadows, no neon, no emoji in UI chrome
## Built With
This project was built using **frontier-planner-mode** — a delegation pattern
where a frontier model (Opus 4.7) handles architecture and decisions while an
on-prem executor (Qwen3.6-35B on MLX) handles heavy token generation. Roughly
93k output tokens of implementation were produced by the executor across three
parallel streams while the planner stayed in architect mode.
## License
Personal demo. Do what you want with it.

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/* apps.css — styles for all Meridian OS apps */
/* ===== Shared app shell ===== */
[data-app='notepad'] .app-toolbar,
[data-app='music'] .app-toolbar,
[data-app='steam'] .app-toolbar,
[data-app='vscode'] .app-toolbar,
[data-app='postman'] .app-toolbar,
[data-app='chrome'] .app-toolbar,
[data-app='notepad'] .app-status,
[data-app='steam'] .app-status,
[data-app='vscode'] .app-status,
[data-app='postman'] .app-status {
height: 40px;
background: var(--bg-2);
border-bottom: 1px solid var(--border);
padding: 0 12px;
display: flex;
align-items: center;
justify-content: space-between;
}
[data-app='notepad'] .app-toolbar .doc-title {
font-size: 13px;
font-weight: 500;
color: var(--text);
flex: 1;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
[data-app='notepad'] .app-toolbar .btn-amber {
padding: 5px 14px;
background: var(--accent);
color: #0f1114;
border: none;
border-radius: 3px;
font-size: 12px;
font-weight: 600;
cursor: pointer;
transition: opacity 150ms;
}
[data-app='notepad'] .app-toolbar .btn-amber:hover {
opacity: 0.85;
}
[data-app='notepad'] .app-status {
height: 24px;
font-size: 11px;
color: var(--text-dim);
border-top: 1px solid var(--border);
padding: 0 12px;
align-items: baseline;
}
/* ===== Notepad ===== */
[data-app='notepad'] textarea {
flex: 1;
background: var(--bg-1);
color: var(--text);
font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
font-size: 14px;
padding: 16px;
border: none;
resize: none;
outline: none;
line-height: 1.6;
}
[data-app='notepad'] textarea::placeholder {
color: var(--text-dim);
}
/* ===== Music ===== */
[data-app='music'] .track-row {
padding: 10px 14px;
cursor: pointer;
display: flex;
flex-direction: column;
border-left: 2px solid transparent;
border-bottom: 1px solid rgba(255, 255, 255, 0.04);
transition: all 150ms ease-out;
}
[data-app='music'] .track-row:hover {
background: var(--bg-3);
}
[data-app='music'] .track-row.active {
border-left-color: var(--accent);
background: var(--bg-3);
}
[data-app='music'] .track-title {
font-size: 13px;
font-weight: 500;
color: var(--text);
}
[data-app='music'] .track-artist {
font-size: 11px;
color: var(--text-dim);
margin-top: 2px;
}
[data-app='music'] .cover-art {
width: 120px;
height: 120px;
background: rgba(212, 162, 76, 0.15);
border: 1px solid rgba(212, 162, 76, 0.2);
display: flex;
align-items: center;
justify-content: center;
font-size: 48px;
font-weight: 600;
color: var(--accent);
margin-bottom: 24px;
}
[data-app='music'] .now-title {
font-size: 28px;
font-weight: 600;
color: var(--text);
margin-bottom: 6px;
}
[data-app='music'] .now-artist {
font-size: 14px;
color: var(--text-dim);
margin-bottom: 32px;
}
[data-app='music'] .play-btn {
width: 48px;
height: 48px;
border-radius: 50%;
background: var(--accent);
border: none;
color: #0f1114;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
font-size: 20px;
font-weight: 700;
transition: opacity 150ms;
}
[data-app='music'] .play-btn:hover {
opacity: 0.85;
}
[data-app='music'] .play-btn:disabled {
opacity: 0.3;
cursor: default;
}
[data-app='music'] .nav-btn {
width: 40px;
height: 40px;
border-radius: 50%;
background: var(--bg-3);
border: 1px solid var(--border);
color: var(--text);
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
font-size: 16px;
transition: background 150ms;
}
[data-app='music'] .nav-btn:hover {
background: var(--border);
}
[data-app='music'] input[type='range'] {
width: 100%;
height: 4px;
-webkit-appearance: none;
appearance: none;
background: var(--bg-3);
border-radius: 2px;
outline: none;
cursor: pointer;
}
[data-app='music'] input[type='range']::-webkit-slider-thumb {
-webkit-appearance: none;
width: 12px;
height: 12px;
border-radius: 50%;
background: var(--accent);
cursor: pointer;
}
[data-app='music'] .seek-label {
font-size: 11px;
color: var(--text-dim);
margin-bottom: 4px;
display: flex;
justify-content: space-between;
}
/* ===== Steam ===== */
[data-app='steam'] .lib-item {
padding: 8px 14px;
cursor: pointer;
font-size: 13px;
color: var(--text);
transition: background 150ms ease-out;
border-left: 2px solid transparent;
}
[data-app='steam'] .lib-item:hover {
background: var(--bg-3);
}
[data-app='steam'] .lib-item.selected {
border-left-color: var(--accent);
background: var(--bg-3);
}
[data-app='steam'] .lib-label {
padding: 12px 14px 6px;
font-size: 11px;
font-weight: 600;
color: var(--text-dim);
text-transform: uppercase;
letter-spacing: 0.05em;
}
[data-app='steam'] .game-hero {
width: 100%;
height: 200px;
background: linear-gradient(135deg, rgba(37, 42, 49, 0.9), rgba(212, 162, 76, 0.2));
border: 1px solid var(--border);
display: flex;
align-items: flex-end;
padding: 20px;
margin-bottom: 20px;
position: relative;
overflow: hidden;
border-radius: 4px;
}
[data-app='steam'] .game-hero-title {
font-size: 32px;
font-weight: 700;
color: var(--text);
text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}
[data-app='steam'] .game-desc {
font-size: 13px;
color: var(--text);
line-height: 1.7;
margin-bottom: 20px;
max-width: 600px;
}
[data-app='steam'] .install-btn {
padding: 10px 28px;
background: var(--accent);
color: #0f1114;
border: none;
border-radius: 4px;
font-size: 14px;
font-weight: 600;
cursor: pointer;
transition: opacity 150ms;
width: fit-content;
}
[data-app='steam'] .install-btn:hover {
opacity: 0.85;
}
[data-app='steam'] .install-btn.installed {
background: var(--bg-3);
color: var(--text-dim);
border: 1px solid var(--border);
}
[data-app='steam'] .install-btn:disabled {
opacity: 0.5;
cursor: wait;
}
[data-app='steam'] .progress-wrap {
width: 280px;
height: 6px;
background: var(--bg-3);
border-radius: 3px;
margin-top: 12px;
overflow: hidden;
}
[data-app='steam'] .progress-fill {
width: 0%;
height: 100%;
background: var(--accent);
border-radius: 3px;
transition: width 2s linear;
}
[data-app='steam'] .steam-status {
background: var(--bg-2);
border-top: 1px solid var(--border);
padding: 6px 14px;
font-size: 11px;
color: var(--text-dim);
flex-shrink: 0;
}
[data-app='steam'] .placeholder-msg {
flex: 1;
display: flex;
align-items: center;
justify-content: center;
color: var(--text-dim);
font-size: 14px;
}
/* ===== VS Code ===== */
[data-app='vscode'] .activity-bar {
width: 40px;
background: #333;
display: flex;
flex-direction: column;
align-items: center;
padding-top: 8px;
border-right: 1px solid #444;
flex-shrink: 0;
}
[data-app='vscode'] .activity-icon {
width: 24px;
height: 24px;
margin-bottom: 16px;
cursor: pointer;
opacity: 0.5;
transition: opacity 150ms;
}
[data-app='vscode'] .activity-icon.active {
opacity: 1;
}
[data-app='vscode'] .explorer {
width: 200px;
background: #252526;
border-right: 1px solid #444;
display: flex;
flex-direction: column;
flex-shrink: 0;
}
[data-app='vscode'] .explorer-label {
padding: 8px 12px;
font-size: 11px;
font-weight: 600;
color: #bbbbbb;
text-transform: uppercase;
letter-spacing: 0.05em;
}
[data-app='vscode'] .folder-label {
padding: 4px 12px;
font-size: 12px;
color: #9cdcfe;
font-weight: 600;
cursor: pointer;
}
[data-app='vscode'] .file-item {
padding: 4px 12px 4px 24px;
font-size: 13px;
color: #cccccc;
cursor: pointer;
display: flex;
align-items: center;
transition: background 100ms;
}
[data-app='vscode'] .file-item:hover {
background: rgba(255, 255, 255, 0.04);
}
[data-app='vscode'] .file-item.active {
background: rgba(255, 255, 255, 0.08);
}
[data-app='vscode'] .editor {
flex: 1;
overflow: auto;
padding: 16px 20px;
background: #1e1e1e;
}
[data-app='vscode'] .editor-content {
margin: 0;
font-family: Consolas, Menlo, Monaco, monospace;
font-size: 13px;
line-height: 1.6;
white-space: pre;
tab-size: 2;
}
[data-app='vscode'] .line-numbers {
color: #858585;
}
[data-app='vscode'] .editor-keyword {
color: #c678dd;
}
[data-app='vscode'] .editor-string {
color: #ce9178;
}
[data-app='vscode'] .editor-comment {
color: #6a9955;
}
[data-app='vscode'] .editor-number {
color: #b5cea8;
}
[data-app='vscode'] .editor-func {
color: #61afef;
}
[data-app='vscode'] .editor-type {
color: #e5c07b;
}
[data-app='vscode'] .status-bar {
height: 22px;
background: #007acc;
display: flex;
align-items: center;
padding: 0 12px;
font-size: 12px;
color: #ffffff;
flex-shrink: 0;
gap: 16px;
}
/* ===== Postman ===== */
[data-app='postman'] .req-bar {
display: flex;
align-items: center;
gap: 0;
padding: 8px 12px;
border-bottom: 1px solid var(--border);
background: var(--bg-2);
flex-shrink: 0;
}
[data-app='postman'] .method-select {
padding: 6px 10px;
background: var(--bg-3);
border: 1px solid var(--border);
border-right: none;
border-radius: 4px 0 0 4px;
color: var(--accent);
font-weight: 600;
font-size: 13px;
outline: none;
cursor: pointer;
min-width: 70px;
}
[data-app='postman'] .url-input {
flex: 1;
padding: 6px 12px;
background: var(--bg-3);
border: 1px solid var(--border);
color: var(--text);
font-size: 13px;
font-family: monospace;
outline: none;
}
[data-app='postman'] .send-btn {
padding: 6px 20px;
background: var(--accent);
color: #0f1114;
border: none;
border-radius: 0 4px 4px 0;
font-size: 13px;
font-weight: 600;
cursor: pointer;
transition: opacity 150ms;
}
[data-app='postman'] .send-btn:hover {
opacity: 0.85;
}
[data-app='postman'] .send-btn:disabled {
opacity: 0.5;
cursor: wait;
}
[data-app='postman'] .tab-bar {
display: flex;
gap: 0;
border-bottom: 1px solid var(--border);
background: var(--bg-2);
flex-shrink: 0;
}
[data-app='postman'] .tab-btn {
padding: 8px 16px;
background: transparent;
border: none;
border-right: 1px solid var(--border);
color: var(--text-dim);
font-size: 12px;
cursor: pointer;
transition: color 150ms;
}
[data-app='postman'] .tab-btn.active {
color: var(--text);
}
[data-app='postman'] .tab-btn:hover {
background: var(--bg-3);
}
[data-app='postman'] .tab-area {
flex: 1;
overflow-y: auto;
background: var(--bg-2);
}
[data-app='postman'] .resp-label {
padding: 8px 12px;
font-size: 11px;
font-weight: 600;
color: var(--text-dim);
text-transform: uppercase;
letter-spacing: 0.05em;
border-bottom: 1px solid var(--border);
background: var(--bg-2);
flex-shrink: 0;
}
[data-app='postman'] .resp-area {
flex: 1;
overflow: auto;
padding: 12px 16px;
margin: 0;
font-size: 12px;
line-height: 1.6;
color: var(--text);
font-family: monospace;
background: var(--bg-1);
}
[data-app='postman'] .status-line {
padding: 4px 12px;
font-size: 11px;
color: var(--text-dim);
border-top: 1px solid var(--border);
background: var(--bg-2);
flex-shrink: 0;
}
/* ===== Chrome ===== */
[data-app='chrome'] .tab-strip {
display: flex;
background: var(--bg-2);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
overflow-x: auto;
}
[data-app='chrome'] .tab-btn {
padding: 8px 16px;
font-size: 12px;
border: none;
background: transparent;
color: var(--text-dim);
border-right: 1px solid var(--border);
cursor: pointer;
transition: color 150ms;
max-width: 180px;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
[data-app='chrome'] .tab-btn.active {
color: var(--text);
}
[data-app='chrome'] .new-tab-btn {
padding: 8px 12px;
font-size: 16px;
border: none;
background: transparent;
color: var(--text-dim);
cursor: pointer;
flex-shrink: 0;
}
[data-app='chrome'] .addr-bar {
display: flex;
align-items: center;
padding: 6px 12px;
gap: 8px;
background: var(--bg-2);
border-bottom: 1px solid var(--border);
flex-shrink: 0;
}
[data-app='chrome'] .url-bar-input {
flex: 1;
padding: 6px 12px;
background: var(--bg-3);
border: 1px solid var(--border);
border-radius: 20px;
color: var(--text);
font-size: 13px;
outline: none;
}
[data-app='chrome'] .url-bar-input::placeholder {
color: var(--text-dim);
}
[data-app='chrome'] .reload-btn {
padding: 4px 8px;
background: transparent;
border: none;
color: var(--text-dim);
cursor: pointer;
font-size: 14px;
}
[data-app='chrome'] .page-body {
flex: 1;
overflow-y: auto;
padding: 40px 20px;
background: var(--bg-1);
}
[data-app='chrome'] .shortcut-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 12px;
max-width: 600px;
margin: 0 auto;
}
[data-app='chrome'] .shortcut-tile {
padding: 16px 12px;
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: 8px;
text-align: center;
cursor: pointer;
transition: background 150ms;
}
[data-app='chrome'] .shortcut-tile:hover {
background: var(--bg-3);
}
[data-app='chrome'] .shortcut-icon {
font-size: 18px;
font-weight: 600;
color: var(--accent);
margin-bottom: 4px;
}
[data-app='chrome'] .shortcut-label {
font-size: 11px;
color: var(--text-dim);
}
[data-app='chrome'] .page-title {
font-size: 22px;
font-weight: 500;
color: var(--text);
margin-bottom: 28px;
text-align: center;
}
[data-app='chrome'] .page-heading {
font-size: 22px;
font-weight: 500;
color: var(--text);
margin-bottom: 12px;
}
[data-app='chrome'] .page-url {
font-size: 12px;
color: var(--text-dim);
margin-bottom: 24px;
font-family: monospace;
padding: 8px 12px;
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: 4px;
}
[data-app='chrome'] .page-text {
font-size: 14px;
color: var(--text-dim);
line-height: 1.7;
}

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*, *::before, *::after {
box-sizing: border-box;
margin: 0;
padding: 0;
}
html, body {
width: 100%;
height: 100%;
overflow: hidden;
font-family: var(--font);
font-size: var(--fs);
background: var(--bg-0);
color: var(--text);
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
user-select: none;
}
button, input {
font-family: inherit;
user-select: text;
}
button:focus-visible, input:focus-visible, a:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
input::placeholder {
color: var(--text-faint);
}
::-webkit-scrollbar {
width: 6px;
height: 6px;
}
::-webkit-scrollbar-track {
background: transparent;
}
::-webkit-scrollbar-thumb {
background: var(--border-strong);
border-radius: 3px;
}
::selection {
background: var(--accent-dim);
color: var(--text);
}

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/* Shell layout styles */
#login {
position: fixed;
inset: 0;
display: flex;
align-items: center;
justify-content: center;
z-index: 1000;
transition: opacity 0.4s ease, visibility 0.4s ease;
}
#login.hidden {
opacity: 0;
visibility: hidden;
pointer-events: none;
}
.login-card {
width: 360px;
padding: 40px 32px;
background: var(--bg-1);
border: 1px solid var(--border);
border-radius: var(--radius-lg);
box-shadow: var(--shadow-2);
display: flex;
flex-direction: column;
align-items: center;
gap: 24px;
}
.login-logo {
font-size: var(--fs);
font-size: 28px;
font-weight: 600;
color: var(--text);
letter-spacing: -0.5px;
}
.login-time {
position: absolute;
top: 24px;
right: 32px;
font-size: 14px;
color: var(--text-dim);
}
.login-input {
width: 100%;
padding: 12px 16px;
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: var(--radius);
color: var(--text);
font-size: 14px;
transition: border-color 0.2s;
}
.login-input:focus {
border-color: var(--accent);
outline: none;
}
.login-input::placeholder {
color: var(--text-faint);
}
.login-btn {
width: 100%;
padding: 12px 16px;
background: var(--accent);
color: var(--bg-0);
font-size: 14px;
font-weight: 600;
border-radius: var(--radius);
cursor: pointer;
transition: background 0.2s, opacity 0.2s;
}
.login-btn:hover {
opacity: 0.9;
}
.login-btn:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
/* Desktop */
#desktop {
position: fixed;
inset: 0;
display: flex;
flex-direction: column;
}
#desktop.hidden {
display: none;
}
#wallpaper-layer {
position: absolute;
inset: 0;
transition: background 250ms ease;
z-index: 0;
}
#windows-layer {
position: absolute;
inset: 0;
z-index: 1;
overflow: hidden;
}
/* Widgets Tray */
#widgets-tray {
position: fixed;
right: 16px;
top: 16px;
bottom: 64px;
width: 240px;
z-index: 10;
display: flex;
flex-direction: column;
gap: 12px;
overflow-y: auto;
overflow-x: hidden;
}
.widget {
background: var(--bg-1);
border: 1px solid var(--border);
border-radius: var(--radius-lg);
padding: 16px;
backdrop-filter: blur(12px);
}
.widget-title {
font-size: 12px;
text-transform: uppercase;
letter-spacing: 0.5px;
color: var(--text-faint);
margin-bottom: 12px;
}
/* Clock Widget */
.clock-time {
font-size: 32px;
font-weight: 600;
color: var(--text);
line-height: 1;
}
.clock-date {
font-size: 13px;
color: var(--text-dim);
margin-top: 4px;
}
/* Active Apps Widget */
.active-apps-list {
display: flex;
flex-direction: column;
gap: 4px;
}
.active-app-chip {
padding: 8px 12px;
background: var(--bg-2);
border-radius: var(--radius-sm);
font-size: 13px;
color: var(--text);
cursor: pointer;
border: none;
background: none;
text-align: left;
width: 100%;
transition: background 0.15s;
}
.active-app-chip:hover {
background: var(--bg-3);
}
.active-app-chip:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 1px;
}
.active-app-chip.active {
border-left: 2px solid var(--accent);
background: var(--bg-3);
}
.active-apps-empty {
font-size: 13px;
color: var(--text-faint);
font-style: italic;
}
/* Achievements Widget */
.achievements-list {
display: flex;
flex-direction: column;
gap: 8px;
}
.achievement-item {
display: flex;
align-items: center;
gap: 10px;
padding: 8px 0;
}
.achievement-icon {
width: 32px;
height: 32px;
border-radius: var(--radius-sm);
background: var(--accent-dim);
display: flex;
align-items: center;
justify-content: center;
font-size: 13px;
font-weight: 600;
color: var(--accent);
flex-shrink: 0;
}
.achievement-info {
display: flex;
flex-direction: column;
gap: 2px;
overflow: hidden;
}
.achievement-name {
font-size: 13px;
font-weight: 500;
color: var(--text);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.achievement-game {
font-size: 12px;
color: var(--text-faint);
}
.achievements-empty {
font-size: 13px;
color: var(--text-faint);
font-style: italic;
}
/* Taskbar */
#taskbar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 48px;
background: var(--bg-1);
border-top: 1px solid var(--border);
display: flex;
align-items: center;
padding: 0 8px;
z-index: 100;
gap: 4px;
}
#launcher {
padding: 6px 16px;
font-size: 13px;
font-weight: 500;
color: var(--text);
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: var(--radius);
cursor: pointer;
transition: background 0.15s;
}
#launcher:hover {
background: var(--bg-3);
}
#launcher:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
#launcher.active {
background: var(--accent);
color: var(--bg-0);
border-color: var(--accent);
}
#taskbar-apps {
flex: 1;
display: flex;
align-items: center;
gap: 4px;
overflow-x: auto;
padding: 0 8px;
}
.taskbar-app {
padding: 4px 12px;
font-size: 12px;
color: var(--text-dim);
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: var(--radius-sm);
cursor: pointer;
white-space: nowrap;
border: none;
background: none;
transition: background 0.15s, color 0.15s;
}
.taskbar-app:hover {
color: var(--text);
background: var(--bg-3);
}
.taskbar-app.active {
color: var(--text);
background: var(--bg-3);
border-bottom: 2px solid var(--accent);
}
.taskbar-app:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
#status-bar {
display: flex;
align-items: center;
gap: 12px;
padding: 0 8px;
font-size: 12px;
color: var(--text-dim);
}
.status-user {
display: flex;
align-items: center;
gap: 8px;
}
.status-avatar {
width: 24px;
height: 24px;
border-radius: 50%;
background: var(--accent-dim);
color: var(--accent);
display: flex;
align-items: center;
justify-content: center;
font-size: 10px;
font-weight: 600;
}
.status-separator {
color: var(--text-faint);
}
.status-connection {
display: flex;
align-items: center;
gap: 4px;
}
.connection-dot {
width: 8px;
height: 8px;
border-radius: 50%;
background: var(--danger);
transition: background 0.3s;
}
.connection-dot.online {
background: #4caf50;
}
/* Launcher Popover */
.launcher-popover {
position: absolute;
bottom: 56px;
left: 8px;
width: 280px;
background: var(--bg-1);
border: 1px solid var(--border);
border-radius: var(--radius-lg);
box-shadow: var(--shadow-2);
padding: 12px;
z-index: 150;
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 8px;
}
.launcher-app-btn {
padding: 12px 8px;
background: var(--bg-2);
border: 1px solid var(--border);
border-radius: var(--radius);
text-align: center;
cursor: pointer;
transition: background 0.15s, border-color 0.15s;
color: var(--text);
}
.launcher-app-btn:hover {
background: var(--bg-3);
border-color: var(--border-strong);
}
.launcher-app-btn:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
.launcher-app-icon {
font-size: 20px;
margin-bottom: 4px;
}
.launcher-app-label {
font-size: 12px;
color: var(--text-dim);
}
/* Wallpaper Picker Modal */
#wallpaper-picker {
position: fixed;
inset: 0;
z-index: 200;
display: flex;
align-items: center;
justify-content: center;
background: rgba(0,0,0,0.6);
backdrop-filter: blur(4px);
transition: opacity 0.3s, visibility 0.3s;
}
#wallpaper-picker.hidden {
opacity: 0;
visibility: hidden;
pointer-events: none;
}
.wallpaper-picker-card {
width: 560px;
background: var(--bg-1);
border: 1px solid var(--border);
border-radius: var(--radius-lg);
box-shadow: var(--shadow-2);
overflow: hidden;
}
.wallpaper-picker-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: 16px 24px;
border-bottom: 1px solid var(--border);
}
.wallpaper-picker-title {
font-size: 16px;
font-weight: 600;
}
.wallpaper-picker-close {
width: 28px;
height: 28px;
display: flex;
align-items: center;
justify-content: center;
border-radius: var(--radius-sm);
cursor: pointer;
font-size: 16px;
color: var(--text-dim);
border: none;
background: none;
}
.wallpaper-picker-close:hover {
background: var(--bg-3);
color: var(--text);
}
.wallpaper-picker-close:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}
.wallpaper-picker-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 12px;
padding: 20px 24px;
}
.wallpaper-swatch {
aspect-ratio: 16/9;
border-radius: var(--radius);
cursor: pointer;
border: 3px solid transparent;
transition: border-color 0.2s, transform 0.2s;
position: relative;
}
.wallpaper-swatch:hover {
transform: scale(1.03);
}
.wallpaper-swatch.active {
border-color: var(--accent);
}
.wallpaper-swatch-label {
position: absolute;
bottom: 4px;
left: 0;
right: 0;
text-align: center;
font-size: 11px;
color: white;
text-shadow: 0 1px 3px rgba(0,0,0,0.8);
background: rgba(0,0,0,0.4);
padding: 2px 4px;
border-radius: 2px;
}
/* Toast Layer */
#toast-layer {
position: fixed;
bottom: 60px;
right: 16px;
z-index: 300;
display: flex;
flex-direction: column;
gap: 8px;
pointer-events: none;
}
.toast {
display: flex;
align-items: flex-start;
gap: 12px;
padding: 14px 16px;
background: var(--bg-2);
border: 1px solid var(--border);
border-left: 3px solid var(--accent);
border-radius: var(--radius);
box-shadow: var(--shadow-1);
min-width: 280px;
max-width: 360px;
pointer-events: auto;
animation: toast-in 0.3s ease;
}
.toast-removing {
animation: toast-out 0.3s ease forwards;
}
.toast-title {
font-size: 13px;
font-weight: 600;
color: var(--text);
}
.toast-desc {
font-size: 12px;
color: var(--text-dim);
margin-top: 2px;
}
.toast-close {
margin-left: auto;
padding: 2px;
cursor: pointer;
color: var(--text-faint);
border: none;
background: none;
font-size: 14px;
line-height: 1;
}
.toast-close:hover {
color: var(--text);
}
@keyframes toast-in {
from {
opacity: 0;
transform: translateX(24px);
}
to {
opacity: 1;
transform: translateX(0);
}
}
@keyframes toast-out {
from {
opacity: 1;
transform: translateX(0);
}
to {
opacity: 0;
transform: translateX(24px);
}
}
/* Wallpaper picker toggle button in taskbar */
.wallpaper-toggle {
width: 28px;
height: 28px;
display: flex;
align-items: center;
justify-content: center;
border-radius: var(--radius-sm);
cursor: pointer;
color: var(--text-dim);
font-size: 16px;
border: none;
background: none;
}
.wallpaper-toggle:hover {
background: var(--bg-3);
color: var(--text);
}
.wallpaper-toggle:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 2px;
}

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:root {
--bg-0: #0f1114;
--bg-1: #1a1d21;
--bg-2: #252a31;
--bg-3: #2f353d;
--border: rgba(255,255,255,0.08);
--border-strong: rgba(255,255,255,0.14);
--text: #e6e8eb;
--text-dim: #9aa1ab;
--text-faint: #5b6470;
--accent: #d4a24c;
--accent-dim: #8a6a32;
--danger: #c85d5d;
--radius-sm: 4px;
--radius: 8px;
--radius-lg: 12px;
--font: 'Inter', -apple-system, system-ui, sans-serif;
--shadow-1: 0 2px 8px rgba(0,0,0,0.3);
--shadow-2: 0 8px 24px rgba(0,0,0,0.4);
--sp: 4px 8px 12px 16px 24px 32px;
--fs: 12px 13px 14px 16px 20px 28px;
}

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/* Window styles */
.m-window {
position: absolute;
min-width: 320px;
min-height: 240px;
background: var(--bg-1);
border: 1px solid var(--border);
border-radius: var(--radius);
box-shadow: var(--shadow-2);
display: flex;
flex-direction: column;
overflow: hidden;
transition: box-shadow 0.2s;
}
.m-window.focused {
box-shadow: 0 8px 32px rgba(0,0,0,0.5);
border-color: var(--border-strong);
}
.m-window.minimized {
opacity: 0;
pointer-events: none;
transform: scale(0.95);
transition: opacity 0.2s, transform 0.2s;
}
.m-window-header {
display: flex;
align-items: center;
height: 36px;
padding: 0 8px;
background: var(--bg-2);
border-bottom: 1px solid var(--border);
cursor: default;
flex-shrink: 0;
}
.m-window-title {
flex: 1;
font-size: 13px;
font-weight: 500;
color: var(--text);
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
padding-left: 4px;
}
.m-window-controls {
display: flex;
align-items: center;
gap: 2px;
}
.m-window-btn {
width: 28px;
height: 28px;
display: flex;
align-items: center;
justify-content: center;
border-radius: var(--radius-sm);
cursor: pointer;
font-size: 14px;
color: var(--text-dim);
border: none;
background: none;
transition: background 0.15s, color 0.15s;
}
.m-window-btn:hover {
background: var(--bg-3);
color: var(--text);
}
.m-window-btn.close-btn:hover {
background: var(--danger);
color: white;
}
.m-window-btn:focus-visible {
outline: 2px solid var(--accent);
outline-offset: 1px;
}
.m-window-body {
flex: 1;
overflow: auto;
position: relative;
}
.m-window-body > * {
width: 100%;
height: 100%;
}
/* Resize handle */
.m-window-resize {
position: absolute;
bottom: 0;
right: 0;
width: 16px;
height: 16px;
cursor: nwse-resize;
}
/* Drag overlay */
.drag-overlay {
position: fixed;
inset: 0;
z-index: 9999;
cursor: move;
}

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Meridian OS</title>
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap" rel="stylesheet">
<link rel="stylesheet" href="css/tokens.css">
<link rel="stylesheet" href="css/reset.css">
<link rel="stylesheet" href="css/shell.css">
<link rel="stylesheet" href="css/window.css">
<link rel="stylesheet" href="css/apps.css">
</head>
<body>
<!-- Login Screen -->
<div id="login" class="login">
<span id="login-time" class="login-time"></span>
<div class="login-card">
<div class="login-logo">Meridian OS</div>
<input type="text" id="login-input" class="login-input" placeholder="What should we call you?" autofocus aria-label="Your name">
<button id="login-btn" class="login-btn">Continue</button>
</div>
</div>
<!-- Desktop -->
<div id="desktop" class="desktop" hidden>
<div id="wallpaper-layer"></div>
<div id="windows-layer"></div>
<aside id="widgets-tray">
<div id="clock-widget" class="widget">
<div class="widget-title">Now</div>
<div id="clock-time" class="clock-time"></div>
<div id="clock-date" class="clock-date"></div>
</div>
<div class="widget">
<div class="widget-title">Active Apps</div>
<div id="active-apps-list" class="active-apps-list"></div>
</div>
<div class="widget">
<div class="widget-title">Achievements</div>
<div id="achievements-list" class="achievements-list"></div>
</div>
</aside>
<nav id="taskbar">
<button id="launcher">Apps</button>
<div id="launcher-popover" class="launcher-popover hidden"></div>
<div id="taskbar-apps"></div>
<div id="status-bar">
<button id="wallpaper-toggle" class="wallpaper-toggle" aria-label="Change wallpaper">&#9638;</button>
</div>
</nav>
</div>
<!-- Toast Layer -->
<div id="toast-layer"></div>
<!-- Wallpaper Picker -->
<div id="wallpaper-picker" class="hidden">
<div class="wallpaper-picker-card">
<div class="wallpaper-picker-header">
<span class="wallpaper-picker-title">Wallpaper</span>
<button id="wallpaper-picker-close" class="wallpaper-picker-close" aria-label="Close picker">&times;</button>
</div>
<div id="wallpaper-picker-grid" class="wallpaper-picker-grid"></div>
</div>
</div>
<script type="module" src="js/main.js"></script>
</body>
</html>

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// Achievement definitions for Meridian OS
const catalog = [
{
id: 'first_grace',
title: 'First Grace',
desc: 'Welcome to the Lands Between.',
game: 'ER',
trigger: { event: 'user:login' }
},
{
id: 'getting_tactical',
title: 'Getting Tactical',
desc: 'Run 5 terminal commands.',
game: 'CoD',
trigger: { event: 'term:cmd', count: 5 }
},
{
id: 'career_mode',
title: 'Career Mode',
desc: 'Open 3 different apps.',
game: 'FIFA',
trigger: { event: 'app:open', uniqueField: 'app', count: 3 }
},
{
id: 'tarnished_typist',
title: 'Tarnished Typist',
desc: 'Type 500 characters in Notepad.',
game: 'ER',
trigger: { event: 'text:typed', accumulate: 'chars', threshold: 500 }
},
{
id: 'dj',
title: 'DJ',
desc: 'Play music for 30 seconds.',
game: 'CoD',
trigger: { event: 'music:played', accumulate: 'seconds', threshold: 30 }
},
{
id: 'speedrun',
title: 'Speedrun',
desc: 'Open and close a window in under 2 seconds.',
game: 'FIFA',
trigger: { custom: 'speedrun' }
},
{
id: 'dataminer',
title: 'Dataminer',
desc: 'Discover 3 hidden terminal commands.',
game: 'ER',
trigger: { event: 'easter:found', count: 3, unique: true }
},
{
id: 'grace_bestowed',
title: 'Touched by Grace',
desc: 'Praise the Sun.',
game: 'ER',
trigger: { event: 'easter:found', id: 'er_grace' }
},
{
id: 'siuuu_master',
title: 'SIUUU Master',
desc: 'Celebrate in the terminal.',
game: 'FIFA',
trigger: { event: 'easter:found', id: 'er_siuuu' }
},
{
id: 'cheater',
title: 'Cheat Code Activated',
desc: 'Enter the Konami code.',
game: 'CoD',
trigger: { event: 'easter:found', id: 'er_konami' }
}
];
export default catalog;

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// Achievements engine — subscribes to bus events, unlocks achievements.
// On unlock: pushes id into State, emits 'achievement:unlocked' for the widget.
import Bus from '../core/bus.js';
import State from '../core/state.js';
import catalog from './catalog.js';
// In-memory counters per achievement id
const counters = {};
// For uniqueField tracking: Set of seen values per achievement id
const uniqueSets = {};
// For speedrun: map of windowId -> open timestamp
const openTimestamps = {};
let initialized = false;
function hasUnlocked(id) {
const unlocked = State.get('achievements');
return unlocked && unlocked.includes(id);
}
function unlock(ach) {
if (hasUnlocked(ach.id)) return;
State.addAchievement(ach.id);
Bus.emit('achievement:unlocked', {
id: ach.id,
title: ach.title,
desc: ach.desc,
game: ach.game
});
}
function handleEvent(ach, data) {
const trigger = ach.trigger;
// Event+id specific trigger (easter egg matches)
if (trigger.id) {
if (data && data.id === trigger.id) {
unlock(ach);
}
return;
}
// Simple event trigger (no count, no accumulate) — unlock on first fire
if (!trigger.count && !trigger.accumulate && !trigger.uniqueField) {
unlock(ach);
return;
}
// Count-based trigger
if (trigger.count) {
counters[ach.id] = (counters[ach.id] || 0) + 1;
if (counters[ach.id] >= trigger.count) {
unlock(ach);
}
return;
}
// UniqueField trigger
if (trigger.uniqueField) {
if (!uniqueSets[ach.id]) {
uniqueSets[ach.id] = new Set();
}
const val = data && data[trigger.uniqueField];
if (val) {
uniqueSets[ach.id].add(val);
if (uniqueSets[ach.id].size >= trigger.count) {
unlock(ach);
}
}
return;
}
// Accumulate trigger
if (trigger.accumulate) {
const key = trigger.accumulate;
const value = data && data[key];
if (typeof value === 'number') {
counters[ach.id] = (counters[ach.id] || 0) + value;
if (counters[ach.id] >= trigger.threshold) {
unlock(ach);
}
}
return;
}
}
function init() {
if (initialized) return;
initialized = true;
// Pre-initialize counters for all achievements
catalog.forEach(ach => {
counters[ach.id] = 0;
uniqueSets[ach.id] = ach.trigger.uniqueField ? new Set() : undefined;
});
// Subscribe to each achievement's trigger event
catalog.forEach(ach => {
const trigger = ach.trigger;
if (trigger.custom === 'speedrun') {
// Speedrun: listen to app:open and app:close on wm.js
Bus.on('app:open', (data) => {
if (data && data.id) {
openTimestamps[data.id] = Date.now();
}
});
Bus.on('app:close', (data) => {
if (data && data.id && openTimestamps[data.id]) {
const delta = Date.now() - openTimestamps[data.id];
if (delta < 2000) {
unlock(ach);
}
delete openTimestamps[data.id];
}
});
return;
}
if (trigger.event) {
Bus.on(trigger.event, (data) => {
handleEvent(ach, data);
});
}
});
}
export default { init };

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// Chrome spoof — static-but-believable browser UI.
const TABS = [
{ title: 'New Tab', active: true },
{ title: 'Meridian Docs', active: false },
{ title: 'Search', active: false },
];
const SHORTCUTS = [
{ label: 'GitHub', url: 'https://github.com' },
{ label: 'Gmail', url: 'https://mail.google.com' },
{ label: 'YouTube', url: 'https://youtube.com' },
{ label: 'Maps', url: 'https://maps.google.com' },
{ label: 'Drive', url: 'https://drive.google.com' },
{ label: 'Calendar', url: 'https://calendar.google.com' },
{ label: 'Docs', url: 'https://docs.google.com' },
{ label: 'Translate', url: 'https://translate.google.com' },
];
export default {
id: 'chrome',
title: 'Chrome',
render(container, api) {
let activeTab = 0;
let navUrl = '';
const root = document.createElement('div');
root.style.cssText = 'height:100%;display:flex;flex-direction:column;background:var(--bg-1);';
// Tab strip
const tabStrip = document.createElement('div');
tabStrip.style.cssText = 'display:flex;background:var(--bg-2);border-bottom:1px solid var(--border);flex-shrink:0;overflow-x:auto;';
// New tab button
const newTabBtn = document.createElement('button');
newTabBtn.style.cssText = 'padding:8px 12px;font-size:16px;border:none;background:transparent;color:var(--text-dim);cursor:pointer;flex-shrink:0;';
newTabBtn.textContent = '+';
newTabBtn.addEventListener('click', () => {
const newIdx = TABS.length;
TABS.push({ title: 'New Tab', active: true });
TABS.forEach((t) => { t.active = false; });
TABS[newIdx].active = true;
activeTab = newIdx;
navUrl = '';
updateTabBar();
updateBody();
});
function updateTabBar() {
tabStrip.innerHTML = '';
TABS.forEach((tab, i) => {
const btn = document.createElement('button');
btn.style.cssText = 'padding:8px 16px;font-size:12px;border:none;background:transparent;color:' + (tab.active ? 'var(--text)' : 'var(--text-dim)') + ';border-right:1px solid var(--border);cursor:pointer;transition:color 150ms;max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;';
btn.textContent = tab.title;
btn.addEventListener('click', () => {
activeTab = i;
navUrl = SHORTCUTS[i] ? SHORTCUTS[i].url : '';
updateTabBar();
updateBody();
});
tabStrip.appendChild(btn);
});
tabStrip.appendChild(newTabBtn);
}
updateTabBar();
root.appendChild(tabStrip);
// Address bar
const addrBar = document.createElement('div');
addrBar.style.cssText = 'display:flex;align-items:center;padding:6px 12px;gap:8px;background:var(--bg-2);border-bottom:1px solid var(--border);flex-shrink:0;';
const urlInput = document.createElement('input');
urlInput.type = 'text';
urlInput.value = navUrl || (SHORTCUTS[activeTab] ? SHORTCUTS[activeTab].url : '');
urlInput.style.cssText = 'flex:1;padding:6px 12px;background:var(--bg-3);border:1px solid var(--border);border-radius:20px;color:var(--text);font-size:13px;outline:none;';
urlInput.placeholder = 'Search or enter web address';
urlInput.addEventListener('keydown', (e) => {
if (e.key === 'Enter') {
const val = urlInput.value.trim();
if (val) {
navUrl = val;
updateBody();
}
}
});
const reloadBtn = document.createElement('button');
reloadBtn.style.cssText = 'padding:4px 8px;background:transparent;border:none;color:var(--text-dim);cursor:pointer;font-size:14px;';
reloadBtn.textContent = '\u{21BB}';
reloadBtn.addEventListener('click', () => { updateBody(); });
addrBar.appendChild(urlInput);
addrBar.appendChild(reloadBtn);
root.appendChild(addrBar);
// Body
const body = document.createElement('div');
body.style.cssText = 'flex:1;overflow-y:auto;padding:40px 20px;background:var(--bg-1);';
function updateBody() {
body.innerHTML = '';
urlInput.value = navUrl || (TABS[activeTab].title === 'New Tab' ? '' : TABS[activeTab].title.toLowerCase().replace(/\s+/g, '-') + '.meridian.dev');
if (activeTab === 0 && !navUrl) {
// New tab page
const titleEl = document.createElement('h2');
titleEl.style.cssText = 'font-size:22px;font-weight:500;color:var(--text);margin-bottom:28px;text-align:center;';
titleEl.textContent = 'Meridian Browser';
body.appendChild(titleEl);
const grid = document.createElement('div');
grid.style.cssText = 'display:grid;grid-template-columns:repeat(4,1fr);gap:12px;max-width:600px;margin:0 auto;';
SHORTCUTS.forEach((sc) => {
const tile = document.createElement('div');
tile.style.cssText = 'padding:16px 12px;background:var(--bg-2);border:1px solid var(--border);border-radius:8px;text-align:center;cursor:pointer;transition:background 150ms;';
tile.addEventListener('mouseenter', () => { tile.style.background = 'var(--bg-3)'; });
tile.addEventListener('mouseleave', () => { tile.style.background = 'var(--bg-2)'; });
tile.addEventListener('click', () => {
navUrl = sc.url;
TABS[0].title = sc.label;
updateTabBar();
updateBody();
});
const tileIcon = document.createElement('div');
tileIcon.style.cssText = 'font-size:18px;font-weight:600;color:var(--accent);margin-bottom:4px;';
tileIcon.textContent = sc.label.charAt(0);
const tileLabel = document.createElement('div');
tileLabel.style.cssText = 'font-size:11px;color:var(--text-dim);';
tileLabel.textContent = sc.label;
tile.appendChild(tileIcon);
tile.appendChild(tileLabel);
grid.appendChild(tile);
});
body.appendChild(grid);
} else {
// Simulated page
const page = document.createElement('div');
page.style.cssText = 'max-width:600px;margin:0 auto;';
const heading = document.createElement('h2');
heading.style.cssText = 'font-size:22px;font-weight:500;color:var(--text);margin-bottom:12px;';
heading.textContent = 'Simulated page for ' + (navUrl || TABS[activeTab].title);
page.appendChild(heading);
const urlDisplay = document.createElement('div');
urlDisplay.style.cssText = 'font-size:12px;color:var(--text-dim);margin-bottom:24px;font-family:monospace;padding:8px 12px;background:var(--bg-2);border:1px solid var(--border);border-radius:4px;';
urlDisplay.textContent = navUrl || TABS[activeTab].title;
page.appendChild(urlDisplay);
const para = document.createElement('p');
para.style.cssText = 'font-size:14px;color:var(--text-dim);line-height:1.7;';
const displayUrl = navUrl || TABS[activeTab].title;
para.textContent = 'This is a simulated page for ' + displayUrl + '. Meridian Browser does not make actual network requests — it is a spoof. Nothing to see here unless you count the aesthetic choices.';
page.appendChild(para);
body.appendChild(page);
}
}
root.appendChild(body);
container.appendChild(root);
updateBody();
},
};

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// Music player — three tracks, play/pause/skip/seek/volume.
const TRACKS = [
{ title: 'Grace Ascent', artist: 'Meridian OST', src: 'https://cdn.pixabay.com/audio/2022/10/18/audio_31c1679d6c.mp3' },
{ title: 'Siege Breaker', artist: 'Meridian OST', src: 'https://cdn.pixabay.com/audio/2022/11/17/audio_febc508520.mp3' },
{ title: 'Final Whistle', artist: 'Meridian OST', src: 'https://cdn.pixabay.com/audio/2023/06/13/audio_2c8e3b31b0.mp3' },
];
export default {
id: 'music',
title: 'Music',
render(container, api) {
const audio = new Audio();
let currentTrack = 0;
let playedSeconds = 0;
let playSecondsTimer = null;
const root = document.createElement('div');
root.style.cssText = 'height:100%;display:flex;overflow:hidden;';
// Left panel: track list
const listPanel = document.createElement('div');
listPanel.style.cssText = 'width:220px;background:var(--bg-2);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;flex-shrink:0;';
const trackList = TRACKS.map((track, i) => {
const row = document.createElement('div');
row.style.cssText = 'padding:10px 14px;cursor:pointer;display:flex;flex-direction:column;border-left:2px solid transparent;border-bottom:1px solid rgba(255,255,255,0.04);transition:all 150ms ease-out;';
const titleSpan = document.createElement('div');
titleSpan.style.cssText = 'font-size:13px;font-weight:500;color:var(--text);';
titleSpan.textContent = track.title;
const artistSpan = document.createElement('div');
artistSpan.style.cssText = 'font-size:11px;color:var(--text-dim);margin-top:2px;';
artistSpan.textContent = track.artist;
row.appendChild(titleSpan);
row.appendChild(artistSpan);
row.addEventListener('click', () => loadTrack(i));
return { row, titleSpan, artistSpan };
});
TRACKS.forEach((_, i) => listPanel.appendChild(trackList[i].row));
// Right panel: now playing
const nowPanel = document.createElement('div');
nowPanel.style.cssText = 'flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 24px;background:var(--bg-1);overflow-y:auto;';
const cover = document.createElement('div');
cover.style.cssText = 'width:120px;height:120px;background:rgba(212,162,76,0.15);border:1px solid rgba(212,162,76,0.2);display:flex;align-items:center;justify-content:center;font-size:48px;font-weight:600;color:var(--accent);margin-bottom:24px;';
const nowTitle = document.createElement('div');
nowTitle.style.cssText = 'font-size:28px;font-weight:600;color:var(--text);margin-bottom:6px;text-align:center;';
const nowArtist = document.createElement('div');
nowArtist.style.cssText = 'font-size:14px;color:var(--text-dim);margin-bottom:32px;text-align:center;';
// Controls row
const controls = document.createElement('div');
controls.style.cssText = 'display:flex;align-items:center;gap:20px;margin-bottom:28px;';
const btnStyle = 'width:40px;height:40px;border-radius:50%;background:var(--bg-3);border:1px solid var(--border);color:var(--text);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:background 150ms ease-out;';
const prevBtn = document.createElement('button');
prevBtn.style.cssText = btnStyle;
prevBtn.textContent = '<<';
prevBtn.addEventListener('click', () => { currentTrack = (currentTrack - 1 + TRACKS.length) % TRACKS.length; loadTrack(currentTrack); });
const playBtn = document.createElement('button');
playBtn.style.cssText = 'width:48px;height:48px;border-radius:50%;background:var(--accent);border:none;color:#0f1114;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;transition:opacity 150ms ease-out;';
playBtn.textContent = '>';
const nextBtn = document.createElement('button');
nextBtn.style.cssText = btnStyle;
nextBtn.textContent = '>>';
nextBtn.addEventListener('click', () => { currentTrack = (currentTrack + 1) % TRACKS.length; loadTrack(currentTrack); });
controls.appendChild(prevBtn);
controls.appendChild(playBtn);
controls.appendChild(nextBtn);
// Seek bar
const seekContainer = document.createElement('div');
seekContainer.style.cssText = 'width:100%;max-width:400px;margin-bottom:16px;';
const seekLabel = document.createElement('div');
seekLabel.style.cssText = 'font-size:11px;color:var(--text-dim);margin-bottom:4px;display:flex;justify-content:space-between;';
const seekLabelLeft = document.createElement('span');
seekLabelLeft.textContent = '0:00';
const seekLabelRight = document.createElement('span');
seekLabelRight.textContent = '0:00';
seekLabel.appendChild(seekLabelLeft);
seekLabel.appendChild(seekLabelRight);
const seekInput = document.createElement('input');
seekInput.type = 'range';
seekInput.min = '0';
seekInput.max = '100';
seekInput.value = '0';
seekInput.style.cssText = 'width:100%;height:4px;-webkit-appearance:none;appearance:none;background:var(--bg-3);border-radius:2px;outline:none;cursor:pointer;';
seekInput.addEventListener('input', () => {
if (audio.duration) {
audio.currentTime = (seekInput.value / 100) * audio.duration;
}
});
seekContainer.appendChild(seekLabel);
seekContainer.appendChild(seekInput);
// Volume slider
const volContainer = document.createElement('div');
volContainer.style.cssText = 'display:flex;align-items:center;gap:8px;margin-top:12px;';
const volLabel = document.createElement('span');
volLabel.style.cssText = 'font-size:12px;color:var(--text-dim);';
volLabel.textContent = '\u{25A0}\u{25A0}';
const volInput = document.createElement('input');
volInput.type = 'range';
volInput.min = '0';
volInput.max = '100';
volInput.value = '70';
volInput.style.cssText = 'width:100px;height:4px;-webkit-appearance:none;appearance:none;background:var(--bg-3);border-radius:2px;outline:none;cursor:pointer;';
volInput.addEventListener('input', () => {
audio.volume = volInput.value / 100;
});
volContainer.appendChild(volLabel);
volContainer.appendChild(volInput);
nowPanel.appendChild(cover);
nowPanel.appendChild(nowTitle);
nowPanel.appendChild(nowArtist);
nowPanel.appendChild(controls);
nowPanel.appendChild(seekContainer);
nowPanel.appendChild(volContainer);
root.appendChild(listPanel);
root.appendChild(nowPanel);
container.appendChild(root);
function formatTime(s) {
if (!isFinite(s)) return '0:00';
return Math.floor(s / 60) + ':' + String(Math.floor(s % 60)).padStart(2, '0');
}
function updateUI() {
const track = TRACKS[currentTrack];
const urlOk = urlAvailable(track.src);
cover.textContent = track.title.charAt(0);
nowTitle.textContent = track.title;
nowArtist.textContent = track.artist;
playBtn.textContent = audio.paused ? '>' : '||';
// Highlight selected track
TRACKS.forEach((_, i) => {
const row = trackList[i].row;
if (i === currentTrack) {
row.style.borderLeftColor = 'var(--accent)';
row.style.background = 'var(--bg-3)';
} else {
row.style.borderLeftColor = 'transparent';
row.style.background = 'transparent';
}
});
seekLabelLeft.textContent = formatTime(audio.currentTime);
seekLabelRight.textContent = formatTime(audio.duration);
seekInput.value = audio.duration ? (audio.currentTime / audio.duration) * 100 : 0;
}
function loadTrack(index) {
stopPlaySecondsTimer();
currentTrack = index;
const track = TRACKS[index];
if (!urlAvailable(track.src)) {
nowTitle.textContent = track.title;
nowArtist.textContent = 'Track unavailable (offline)';
cover.textContent = track.title.charAt(0);
cover.style.background = 'rgba(150,150,150,0.15)';
playBtn.textContent = '>';
playBtn.disabled = true;
seekInput.value = 0;
seekLabelLeft.textContent = '0:00';
seekLabelRight.textContent = '0:00';
return;
}
cover.style.background = 'rgba(212,162,76,0.15)';
playBtn.disabled = false;
audio.src = track.src;
audio.volume = volInput.value / 100;
audio.load();
updateUI();
}
playBtn.addEventListener('click', () => {
if (playBtn.disabled) return;
if (!audio.src) return;
if (audio.paused) {
audio.play().then(() => {
api.bus.emit('music:play');
updateUI();
}).catch(() => {
updateUI();
});
startPlaySecondsTimer();
} else {
audio.pause();
updateUI();
stopPlaySecondsTimer();
}
});
audio.addEventListener('timeupdate', updateUI);
audio.addEventListener('ended', () => {
currentTrack = (currentTrack + 1) % TRACKS.length;
loadTrack(currentTrack);
audio.play().then(() => {
updateUI();
startPlaySecondsTimer();
}).catch(() => { updateUI(); });
});
audio.addEventListener('error', () => {
nowArtist.textContent = 'Track unavailable (offline)';
playBtn.disabled = true;
updateUI();
stopPlaySecondsTimer();
});
updateUI();
loadTrack(0);
audio.pause();
function urlAvailable(url) {
try {
const u = new URL(url);
return true;
} catch {
return false;
}
}
function startPlaySecondsTimer() {
stopPlaySecondsTimer();
playSecondsTimer = setInterval(() => {
playedSeconds++;
api.bus.emit('music:played', { seconds: playedSeconds });
}, 5000);
}
function stopPlaySecondsTimer() {
clearInterval(playSecondsTimer);
}
},
};

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// Notepad app — simple text editor with localStorage persistence.
const uid = () => Date.now().toString(36) + Math.random().toString(36).slice(2, 7);
export default {
id: 'notepad',
title: 'Notepad',
render(container, api) {
const docId = uid();
const storageKey = `meridian:notepad:${docId}`;
let renamed = false;
let saveTimer = null;
// Load saved content
const saved = localStorage.getItem(storageKey);
let docTitle = 'Untitled';
let content = saved !== null ? saved : '';
// Build UI
const toolbar = document.createElement('div');
toolbar.className = 'app-toolbar';
const titleEl = document.createElement('span');
titleEl.className = 'doc-title';
titleEl.textContent = docTitle;
titleEl.title = 'Click to rename';
titleEl.style.cursor = 'pointer';
titleEl.addEventListener('click', () => {
const newName = prompt('Rename document:', titleEl.textContent);
if (newName !== null && newName.trim()) {
docTitle = newName.trim();
titleEl.textContent = docTitle;
renamed = true;
api.setTitle(docTitle);
}
});
const saveBtn = document.createElement('button');
saveBtn.className = 'btn-amber';
saveBtn.textContent = 'Save';
saveBtn.addEventListener('click', () => {
saveContent();
saveBtn.textContent = 'Saved!';
setTimeout(() => { saveBtn.textContent = 'Save'; }, 1200);
});
toolbar.appendChild(titleEl);
toolbar.appendChild(saveBtn);
const textarea = document.createElement('textarea');
textarea.value = content;
const statusbar = document.createElement('div');
statusbar.className = 'app-status';
function updateCounts() {
const text = textarea.value;
const chars = text.length;
const words = text.trim() === '' ? 0 : text.trim().split(/\s+/).length;
statusbar.textContent = `${words} word${words !== 1 ? 's' : ''} · ${chars} character${chars !== 1 ? 's' : ''}`;
}
textarea.addEventListener('input', () => {
updateCounts();
api.bus.emit('text:typed', { chars: textarea.value.length });
// Auto-save after 1s of inactivity
clearTimeout(saveTimer);
saveTimer = setTimeout(saveContent, 1000);
});
function saveContent() {
localStorage.setItem(storageKey, textarea.value);
}
container.style.cssText = 'height:100%;display:flex;flex-direction:column;';
container.appendChild(toolbar);
container.appendChild(textarea);
container.appendChild(statusbar);
updateCounts();
},
};

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// Postman spoof — static-but-believable HTTP client UI.
const RESPONSES = {
GET: `{
"id": 1,
"name": "Alice Freeman",
"email": "alice@meridian.dev",
"role": "developer",
"active": true
}`,
POST: `{
"id": 42,
"name": "New Resource",
"created": "2025-03-14T10:30:00Z",
"status": "created",
"message": "Resource created successfully"
}`,
PUT: `{
"id": 42,
"name": "Updated Resource",
"updated": "2025-03-14T10:32:00Z",
"status": "updated",
"message": "Resource updated successfully"
}`,
DELETE: `{
"id": 42,
"status": "deleted",
"message": "Resource deleted successfully"
}`,
};
const METHODS = ['GET', 'POST', 'PUT', 'DELETE'];
export default {
id: 'postman',
title: 'Postman',
render(container, api) {
let method = 'GET';
let sending = false;
const root = document.createElement('div');
root.style.cssText = 'height:100%;display:flex;flex-direction:column;background:var(--bg-1);';
// Request bar: method select + URL input + Send button
const reqBar = document.createElement('div');
reqBar.style.cssText = 'display:flex;align-items:center;gap:0;padding:8px 12px;border-bottom:1px solid var(--border);background:var(--bg-2);flex-shrink:0;';
const methodSelect = document.createElement('select');
methodSelect.style.cssText = 'padding:6px 10px;background:var(--bg-3);border:1px solid var(--border);border-right:none;border-radius:4px 0 0 4px;color:var(--accent);font-weight:600;font-size:13px;outline:none;cursor:pointer;min-width:70px;';
METHODS.forEach((m) => {
const opt = document.createElement('option');
opt.value = m;
opt.textContent = m;
if (m === method) opt.selected = true;
methodSelect.appendChild(opt);
});
methodSelect.addEventListener('change', () => { method = methodSelect.value; });
const urlInput = document.createElement('input');
urlInput.type = 'text';
urlInput.value = 'https://api.meridian.dev/v1/users';
urlInput.style.cssText = 'flex:1;padding:6px 12px;background:var(--bg-3);border:1px solid var(--border);color:var(--text);font-size:13px;font-family:monospace;outline:none;';
urlInput.placeholder = 'Enter request URL';
const sendBtn = document.createElement('button');
sendBtn.style.cssText = 'padding:6px 20px;background:var(--accent);color:#0f1114;border:none;border-radius:0 4px 4px 0;font-size:13px;font-weight:600;cursor:pointer;';
sendBtn.textContent = 'Send';
sendBtn.addEventListener('click', () => {
if (sending) return;
sending = true;
sendBtn.textContent = 'Sending...';
sendBtn.disabled = true;
setTimeout(() => {
sendBtn.textContent = 'Send';
sendBtn.disabled = false;
sending = false;
showResponse();
}, 200);
});
reqBar.appendChild(methodSelect);
reqBar.appendChild(urlInput);
reqBar.appendChild(sendBtn);
root.appendChild(reqBar);
// Tabs
const tabNames = ['Params', 'Headers', 'Body'];
let activeTab = 'Params';
const tabBtns = [];
const tabBar = document.createElement('div');
tabBar.style.cssText = 'display:flex;gap:0;border-bottom:1px solid var(--border);background:var(--bg-2);flex-shrink:0;';
tabNames.forEach((tab) => {
const btn = document.createElement('button');
const isActive = activeTab === tab;
btn.style.cssText = 'padding:8px 16px;background:transparent;border:none;border-right:1px solid var(--border);color:' + (isActive ? 'var(--text)' : 'var(--text-dim)') + ';font-size:12px;cursor:pointer;transition:color 150ms;';
btn.textContent = tab;
btn.addEventListener('click', () => {
activeTab = tab;
tabArea.innerHTML = contentPanels[tab];
tabBtns.forEach((b) => { b.style.color = 'var(--text-dim)'; });
btn.style.color = 'var(--text)';
});
tabBtns.push(btn);
tabBar.appendChild(btn);
});
root.appendChild(tabBar);
// Tab content panels
const contentPanels = {
Params: '<div style="font-size:12px;line-height:2.4;padding:4px 0;">' +
'<div style="display:flex;gap:8px;margin-bottom:4px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">Authorization</span>' +
'<input style="flex:1;background:var(--bg-1);border:1px solid var(--border);padding:5px 10px;border-radius:3px;color:var(--text);font-size:12px;font-family:monospace;" value="Bearer eyJhbGciOiJIUzI1NiJ9..." />' +
'</div>' +
'<div style="display:flex;gap:8px;margin-bottom:4px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">Content-Type</span>' +
'<input style="flex:1;background:var(--bg-1);border:1px solid var(--border);padding:5px 10px;border-radius:3px;color:var(--text);font-size:12px;font-family:monospace;" value="application/json" />' +
'</div>' +
'<div style="display:flex;gap:8px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">X-Request-ID</span>' +
'<input style="flex:1;background:var(--bg-1);border:1px solid var(--border);padding:5px 10px;border-radius:3px;color:var(--text);font-size:12px;font-family:monospace;" value="" placeholder="Auto-generated" />' +
'</div>' +
'</div>',
Headers: '<div style="font-size:12px;line-height:2.4;padding:4px 0;">' +
'<div style="display:flex;gap:8px;margin-bottom:4px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">User-Agent</span>' +
'<span style="color:var(--text);font-family:monospace;">MeridianClient/1.0</span>' +
'</div>' +
'<div style="display:flex;gap:8px;margin-bottom:4px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">Accept</span>' +
'<span style="color:var(--text);font-family:monospace;">application/json</span>' +
'</div>' +
'<div style="display:flex;gap:8px;">' +
'<span style="color:var(--accent);font-weight:500;width:100px;flex-shrink:0;">Cache-Control</span>' +
'<span style="color:var(--text);font-family:monospace;">no-cache</span>' +
'</div>' +
'</div>',
Body: '<div style="padding:4px 0;">' +
'<textarea id="postman-body" style="width:100%;height:140px;background:var(--bg-1);border:1px solid var(--border);padding:10px;border-radius:3px;color:var(--text);font-size:12px;font-family:monospace;resize:none;outline:none;"></textarea>' +
'</div>',
};
// Build body content separately since it has real JSON
const postmanBody = JSON.stringify({ name: 'Alice Freeman', email: 'alice@meridian.dev', role: 'developer' }, null, 2);
const tabArea = document.createElement('div');
tabArea.style.cssText = 'flex:1;overflow-y:auto;background:var(--bg-2);';
tabArea.innerHTML = contentPanels[activeTab];
root.appendChild(tabArea);
// Response label
const respLabel = document.createElement('div');
respLabel.style.cssText = 'padding:8px 12px;font-size:11px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.05em;border-bottom:1px solid var(--border);background:var(--bg-2);flex-shrink:0;';
respLabel.textContent = 'Response';
// Response pre
const respArea = document.createElement('pre');
respArea.style.cssText = 'flex:1;overflow:auto;padding:12px 16px;margin:0;font-size:12px;line-height:1.6;color:var(--text);font-family:monospace;background:var(--bg-1);';
respArea.textContent = 'Click Send to execute the request';
// Status line
const statusLine = document.createElement('div');
statusLine.style.cssText = 'padding:4px 12px;font-size:11px;color:var(--text-dim);border-top:1px solid var(--border);background:var(--bg-2);flex-shrink:0;';
statusLine.textContent = 'Ready';
root.appendChild(respLabel);
root.appendChild(respArea);
root.appendChild(statusLine);
container.appendChild(root);
function showResponse() {
const resp = RESPONSES[method] || RESPONSES.GET;
const time = Math.floor(Math.random() * 60) + 40;
const size = resp.length + 2;
respArea.textContent = resp;
statusLine.textContent = 'Status: 200 OK \u{B7} Time: ' + time + 'ms \u{B7} Size: ' + size + ' B';
}
},
};

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// Steam spoof — static-but-believable game library UI.
const GAMES = [
{ id: 'elden', title: 'Elden Ring', desc: 'Explore the Lands Between in this open-world action RPG from FromSoftware. Face legendary bosses, forge your build, and uncover the mystery of the shattered Elden Ring. Every step is a descent into the unknown.' },
{ id: 'cod', title: 'Call of Duty: MW2', desc: 'Relive the global conflict in this first-person shooter campaign. From Operation Deadbolt to the final push, the stakes have never been higher. Multiplayer is included, if you can find it in the files.' },
{ id: 'fifa', title: 'FIFA 24', desc: 'The world\'s game, rendered in full hyper-realistic detail. Play Career Mode, Ultimate Team, or just stare at the menu screen for three hours. Your choice, really.' },
{ id: 'hades', title: 'Hades II', desc: 'Return to the Underworld as Melinoch, sister of Zagreus. Wield witchcraft, summon gods, and break out of the cycle of death and rebirth. Again. This time with more style.' },
{ id: 'factorio', title: 'Factorio', desc: 'Build factories, then build bigger factories, then automate your entire existence into a sprawling industrial complex that will consume all your spare time. There is no escape.' },
{ id: 'stardew', title: 'Stardew Valley', desc: 'Leave the city. Take over your grandfather\'s old farm plot. Grow crops, raise animals, befriend the locals. It\'s a quiet life, and you\'ll never leave.' },
{ id: 'bg3', title: "Baldur's Gate 3", desc: 'Gather your party. Roll the dice. Make the worst possible choice. Larian Studios has crafted a deep RPG experience with consequences that actually matter. Mostly.' },
];
export default {
id: 'steam',
title: 'Steam',
render(container, api) {
let selectedGame = null;
let installing = null;
const root = document.createElement('div');
root.style.cssText = 'height:100%;display:flex;flex-direction:column;background:var(--bg-1);';
// Top bar
const topBar = document.createElement('div');
topBar.style.cssText = 'background:var(--bg-2);padding:8px 16px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;';
const topTitle = document.createElement('span');
topTitle.style.cssText = 'font-size:14px;font-weight:600;color:var(--text);';
topTitle.textContent = 'Steam';
topBar.appendChild(topTitle);
root.appendChild(topBar);
// Body: sidebar + main
const body = document.createElement('div');
body.style.cssText = 'flex:1;display:flex;overflow:hidden;';
// Sidebar
const sidebar = document.createElement('div');
sidebar.style.cssText = 'width:220px;background:var(--bg-2);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow-y:auto;flex-shrink:0;';
const sidebarLabel = document.createElement('div');
sidebarLabel.style.cssText = 'padding:12px 14px 6px;font-size:11px;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.05em;';
sidebarLabel.textContent = 'Library';
sidebar.appendChild(sidebarLabel);
GAMES.forEach((game) => {
const item = document.createElement('div');
item.style.cssText = 'padding:8px 14px;cursor:pointer;font-size:13px;color:var(--text);transition:background 150ms ease-out;border-left:2px solid transparent;';
item.textContent = game.title;
item.addEventListener('click', () => { selectGame(game); });
item.dataset.gameId = game.id;
sidebar.appendChild(item);
});
// Main area
const mainArea = document.createElement('div');
mainArea.style.cssText = 'flex:1;display:flex;flex-direction:column;overflow-y:auto;padding:24px;';
// Initial state: "Select a game"
const placeholder = document.createElement('div');
placeholder.style.cssText = 'flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:14px;';
placeholder.textContent = 'Select a game from your library';
mainArea.appendChild(placeholder);
body.appendChild(sidebar);
body.appendChild(mainArea);
root.appendChild(body);
// Status bar
const status = document.createElement('div');
status.style.cssText = 'background:var(--bg-2);border-top:1px solid var(--border);padding:6px 14px;font-size:11px;color:var(--text-dim);flex-shrink:0;';
status.textContent = 'Online \u{B7} 142 friends online \u{B7} 4.7 TB free';
root.appendChild(status);
container.appendChild(root);
function selectGame(game) {
selectedGame = game;
installing = null;
// Clear main area and add game details
while (mainArea.firstChild) mainArea.removeChild(mainArea.firstChild);
// Hero image (gradient block with title overlay)
const hero = document.createElement('div');
hero.style.cssText = 'width:100%;height:200px;background:linear-gradient(135deg, rgba(37,42,49,0.9), rgba(212,162,76,0.2));border:1px solid var(--border);display:flex;align-items:flex-end;padding:20px;margin-bottom:20px;position:relative;overflow:hidden;border-radius:4px;';
const heroOverlay = document.createElement('div');
heroOverlay.style.cssText = 'font-size:32px;font-weight:700;color:var(--text);text-shadow:0 2px 8px rgba(0,0,0,0.6);';
heroOverlay.textContent = game.title;
hero.appendChild(heroOverlay);
mainArea.appendChild(hero);
// Description
const desc = document.createElement('p');
desc.style.cssText = 'font-size:13px;color:var(--text);line-height:1.7;margin-bottom:20px;max-width:600px;';
desc.textContent = game.desc;
mainArea.appendChild(desc);
// Install button
const installBtn = document.createElement('button');
installBtn.style.cssText = 'padding:10px 28px;background:var(--accent);color:#0f1114;border:none;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity 150ms ease-out;width:fit-content;';
installBtn.textContent = 'Install';
installBtn.addEventListener('click', () => startInstall(game, installBtn));
mainArea.appendChild(installBtn);
}
function startInstall(game, btn) {
installing = game.id;
btn.textContent = 'Downloading...';
btn.disabled = true;
const progressWrap = document.createElement('div');
progressWrap.style.cssText = 'width:280px;height:6px;background:var(--bg-3);border-radius:3px;margin-top:12px;overflow:hidden;';
const progressFill = document.createElement('div');
progressFill.style.cssText = 'width:0%;height:100%;background:var(--accent);border-radius:3px;transition:width 2s linear;';
progressWrap.appendChild(progressFill);
mainArea.appendChild(progressWrap);
// Animate progress over 2s
requestAnimationFrame(() => {
progressFill.style.width = '100%';
});
setTimeout(() => {
btn.textContent = 'Installed (in your imagination)';
btn.style.background = 'var(--bg-3)';
btn.style.color = 'var(--text-dim)';
btn.style.border = '1px solid var(--border)';
btn.disabled = false;
installing = null;
progressWrap.remove();
}, 2100);
}
},
};

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export default {
id: 'terminal',
title: 'Terminal',
render: function (container, api) {
var commandHistory = [];
var historyIndex = -1;
var outputLines = [];
var bus = api.bus;
// ── DOM Structure ──────────────────────────────────────
container.style.cssText = 'height:100%;width:100%;background:#0a0b0d;color:#cfd3d8;display:flex;flex-direction:column;font-family:ui-monospace,"JetBrains Mono",Menlo,monospace;overflow:hidden;cursor:text;';
var outputEl = document.createElement('div');
outputEl.style.cssText = 'flex:1;overflow-y:auto;padding:12px;font-size:14px;line-height:1.5;white-space:pre-wrap;word-break:break-word;';
var inputRow = document.createElement('div');
inputRow.style.cssText = 'display:flex;align-items:center;padding:4px 12px 12px;';
var promptEl = document.createElement('span');
promptEl.style.cssText = 'color:#d4a24c;font-size:14px;line-height:1.5;white-space:pre;user-select:none;';
promptEl.textContent = 'tarnished@meridian:~$ ';
var inputEl = document.createElement('input');
inputEl.style.cssText = 'flex:1;background:transparent;border:none;color:inherit;outline:none;font-family:inherit;font-size:14px;line-height:1.5;cursor:text;';
inputEl.setAttribute('type', 'text');
inputEl.setAttribute('autocomplete', 'off');
inputEl.setAttribute('autocorrect', 'off');
inputEl.setAttribute('autocapitalize', 'off');
inputEl.setAttribute('spellcheck', 'false');
inputRow.appendChild(promptEl);
inputRow.appendChild(inputEl);
container.appendChild(outputEl);
container.appendChild(inputRow);
// ── Helpers ────────────────────────────────────────────
function appendLine(text, color) {
var line = document.createElement('div');
line.style.cssText = 'font-size:14px;line-height:1.5;';
line.style.color = color || '#cfd3d8';
line.textContent = text;
outputEl.appendChild(line);
outputLines.push(line);
outputEl.scrollTop = outputEl.scrollHeight;
}
function printBanner() {
appendLine('Meridian Shell 1.0 (kernel 4.19-browser)');
appendLine("Type 'help' to begin. Try 'praise_the_sun' if you know what you're doing.");
appendLine('');
}
// ── Real Commands ──────────────────────────────────────
function cmdHelp() {
appendLine('Available commands:');
appendLine(' help Show this help message');
appendLine(' ls List directory contents');
appendLine(' whoami Show current user');
appendLine(' date Show current date');
appendLine(' uname Show system info');
appendLine(' echo <text> Print text');
appendLine(' clear Clear terminal output');
appendLine(' cat <file> Read a file');
appendLine(' history Show command history');
appendLine(' achievements Show unlocked achievements');
appendLine(' exit Close terminal');
appendLine('');
appendLine("Try 'praise_the_sun' if you know what you're doing.");
}
function cmdLs() {
appendLine('Documents Downloads Music Pictures save_files.dat');
}
function cmdWhoami() {
var user = api.state.get('user');
appendLine(user ? user.name : 'tarnished');
}
function cmdDate() {
appendLine(new Date().toString());
}
function cmdUname() {
appendLine('Meridian 1.0 (browser-kernel)');
}
function cmdEcho(args) {
if (args.length === 0) return;
appendLine(args.join(' '));
}
function cmdClear() {
outputEl.innerHTML = '';
outputLines = [];
}
function cmdCat(file) {
if (!file) {
appendLine('cat: missing operand', '#c85d5d');
return;
}
if (file === 'save_files.dat') {
appendLine("Ah, you want to read your save file? Not today. Some mysteries are better left unsolved.", '#d4a24c');
return;
}
appendLine('cat: ' + file + ': No such file or directory', '#c85d5d');
}
function cmdHistory() {
if (commandHistory.length === 0) {
appendLine('No commands in history.');
return;
}
commandHistory.forEach(function (cmd, i) {
appendLine(' ' + String(i + 1).padStart(4) + ' ' + cmd);
});
}
function cmdAchievements() {
var achievements = api.state.get('achievements');
if (!achievements || achievements.length === 0) {
appendLine('No achievements unlocked yet.');
return;
}
appendLine('Unlocked achievements (' + achievements.length + '):');
achievements.forEach(function (a) {
appendLine(' [x] ' + a);
});
}
function cmdExit() {
api.close();
}
// ── Easter Eggs ────────────────────────────────────────
var easterEggs = {
'praise_the_sun': {
msg: 'A grace of Gold is bestowed upon you.\nMay it guide you in the dark times ahead.',
slug: 'er_grace'
},
'tarnished': {
msg: 'Well then, tarnished. Seek strength. For that is your duty.',
slug: 'er_tarnished'
},
'try finger, but hole': {
msg: 'Message left by a fellow traveler. Rating: brilliant. Rating: inappropriate.',
slug: 'er_bong_hits'
},
'dropshot': {
msg: 'Hitmarker. Clean drop.',
slug: 'er_dropshot'
},
'360_noscope': {
msg: ' |\n /|\\\n-------\n |/\nmontage material acquired.',
slug: 'er_360noscope'
},
'mw2': {
msg: 'A true classic. Soap would be proud.',
slug: 'er_mw2'
},
'siuuu': {
msg: 'SIUUUUU! The keeper had no chance.',
slug: 'er_siuuu'
},
'golazo': {
msg: 'Top bins. What a strike. What a moment.',
slug: 'er_golazo'
},
'wonderkid': {
msg: 'Regen detected. Potential: 5 stars.',
slug: 'er_wonderkid'
},
'konami': {
msg: 'Cheat mode enabled. (it does nothing. you are already a legend.)',
slug: 'er_konami'
},
'matrix': {
msg: null,
slug: 'er_matrix'
},
'sudo rm -rf /': {
msg: 'nice try, tarnished. root is a state of mind.',
slug: 'er_sudo_rm_rf'
}
};
function triggerEasterEgg(cmdName, egg) {
bus.emit('term:cmd', { cmd: cmdName });
bus.emit('easter:found', { id: egg.slug });
if (cmdName === 'matrix') {
appendLine('Entering the matrix...', '#d4a24c');
var mlines = [];
for (var mi = 0; mi < 8; mi++) {
var row = '';
for (var mj = 0; mj < 40; mj++) {
row += Math.random() < 0.5 ? '0' : '1';
}
mlines.push(row);
}
var mlIdx = 0;
function typeNext() {
if (mlIdx < mlines.length) {
appendLine(mlines[mlIdx], '#41c35a');
mlIdx++;
setTimeout(typeNext, 30);
}
}
setTimeout(typeNext, 30);
return;
}
if (cmdName === 'sudo rm -rf /') {
appendLine('...', '#d4a24c');
setTimeout(function () {
outputEl.removeChild(outputEl.lastChild);
appendLine('nice try, tarnished. root is a state of mind.', '#d4a24c');
}, 900);
return;
}
if (egg.msg && egg.msg.indexOf('\n') !== -1) {
egg.msg.split('\n').forEach(function (ln) {
appendLine(ln, '#d4a24c');
});
} else if (egg.msg) {
appendLine(egg.msg, '#d4a24c');
}
}
// ── Command Processing ─────────────────────────────────
function emitRealCmd(cmd) {
bus.emit('term:cmd', { cmd: cmd });
}
function processInput(raw) {
var trimmed = raw.trim();
if (!trimmed) return;
commandHistory.push(trimmed);
if (commandHistory.length > 50) {
commandHistory.shift();
}
historyIndex = commandHistory.length;
appendLine(promptEl.textContent + trimmed, '#d4a24c');
if (easterEggs[trimmed]) {
triggerEasterEgg(trimmed, easterEggs[trimmed]);
return;
}
var parts = trimmed.split(/\s+/);
var cmd = parts[0].toLowerCase();
if (easterEggs[cmd]) {
triggerEasterEgg(cmd, easterEggs[cmd]);
return;
}
emitRealCmd(cmd);
switch (cmd) {
case 'help': cmdHelp(); break;
case 'ls': cmdLs(); break;
case 'whoami': cmdWhoami(); break;
case 'date': cmdDate(); break;
case 'uname': cmdUname(); break;
case 'echo': cmdEcho(parts.slice(1)); break;
case 'clear': cmdClear(); break;
case 'cat': cmdCat(parts[1]); break;
case 'history': cmdHistory(); break;
case 'achievements': cmdAchievements(); break;
case 'exit': cmdExit(); break;
default:
appendLine('Command not found: ' + cmd, '#c85d5d');
}
}
// ── Keyboard Handling ──────────────────────────────────
inputEl.addEventListener('keydown', function (e) {
if (e.key === 'Enter') {
processInput(inputEl.value);
inputEl.value = '';
historyIndex = commandHistory.length;
} else if (e.key === 'ArrowUp') {
e.preventDefault();
if (historyIndex > 0) {
historyIndex--;
inputEl.value = commandHistory[historyIndex];
}
} else if (e.key === 'ArrowDown') {
e.preventDefault();
if (historyIndex < commandHistory.length - 1) {
historyIndex++;
inputEl.value = commandHistory[historyIndex];
} else {
historyIndex = commandHistory.length;
inputEl.value = '';
}
} else if (e.ctrlKey && e.key.toLowerCase() === 'l') {
e.preventDefault();
cmdClear();
}
});
// ── Click to Focus ─────────────────────────────────────
container.addEventListener('click', function () {
inputEl.focus();
});
// ── Initial Banner ─────────────────────────────────────
printBanner();
inputEl.focus();
}
};

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// VS Code spoof — three-pane layout with file explorer and syntax-highlighted editor.
const FILES = [
{ path: 'src/index.ts', content: `import { Engine } from './engine';
const engine = new Engine({
title: 'Meridian OS',
version: '0.1.0',
antialias: true,
vsync: true,
});
// Entry point
engine.start();
console.log('Meridian OS initialized');
export default engine;` },
{ path: 'src/engine.ts', content: `export interface EngineConfig {
title: string;
version: string;
antialias: boolean;
vsync: boolean;
}
export class Engine {
private config: EngineConfig;
private running: boolean = false;
constructor(config: EngineConfig) {
this.config = config;
this.running = false;
}
start(): void {
if (this.running) return;
this.running = true;
console.log(\`Starting \${this.config.title} v\${this.config.version}\`);
this.renderLoop();
}
private renderLoop(): void {
while (this.running) {
this.update();
this.draw();
}
}
private update(): void {
// Game loop update
}
private draw(): void {
// Game loop render
}
stop(): void {
this.running = false;
}
}` },
{ path: 'README.md', content: `# Meridian OS
## Overview
A browser-based desktop environment for a video game.
Elegant, restrained, gamer-literate without being loud.
## Features
- Window manager with drag, focus, minimize, close
- Multiple apps: Notepad, Music, Terminal
- Spoof apps: Steam, VS Code, Postman, Chrome
- Achievement system
- localStorage persistence
## Tech Stack
- Vanilla JS
- CSS custom properties
- No frameworks. No excuses.` },
];
function highlightTS(code) {
// Very basic "syntax highlighting" — just colour types, strings, keywords
return code
.replace(/(import|export|from|const|let|var|function|class|private|public|return|if|while|interface|type|new|void|false|true|this|typeof|instanceof|extends)/g, '<span style="color:#c678dd">$1</span>')
.replace(/(\/\/.*)/g, '<span style="color:#6a9955">$1</span>')
.replace(/('.*?'|".*?"|`.*?`)/g, '<span style="color:#ce9178">$1</span>')
.replace(/\b(\d+)\b/g, '<span style="color:#b5cea8">$1</span>')
.replace(/(\w+)(?=\s*\()/g, '<span style="color:#61afef">$1</span>')
.replace(/(:\s*)(\w+)/g, '$1<span style="color:#e5c07b">$2</span>');
}
export default {
id: 'vscode',
title: 'VS Code',
render(container, api) {
let activeFile = 0;
const root = document.createElement('div');
root.style.cssText = 'height:100%;display:flex;flex-direction:column;background:#1e1e1e;font-family:var(--font-mono,monospace);font-size:13px;color:#d4d4d4;';
// Activity bar (leftmost, 40px wide)
const actBar = document.createElement('div');
actBar.style.cssText = 'width:40px;background:#333333;display:flex;flex-direction:column;align-items:center;padding-top:8px;border-right:1px solid #444444;flex-shrink:0;';
// 5 geometric icons as divs
const icons = [
{ shape: 'square', id: 'explorer' },
{ shape: 'hline', id: 'search' },
{ shape: 'dots', id: 'git' },
{ shape: 'circle', id: 'debug' },
{ shape: 'grid', id: 'extensions' },
];
const iconStyle = 'width:24px;height:24px;margin-bottom:16px;cursor:pointer;opacity:0.5;transition:opacity 150ms;';
icons.forEach((icon) => {
const el = document.createElement('div');
el.style.cssText = iconStyle;
el.id = `vscode-icon-${icon.id}`;
if (icon.shape === 'square') {
el.innerHTML = '<div style="width:18px;height:18px;border:2px solid #d4d4d4;"></div>';
} else if (icon.shape === 'hline') {
el.innerHTML = '<div style="width:18px;height:2px;background:#d4d4d4;margin-top:8px;"></div><div style="width:12px;height:2px;background:#d4d4d4;margin-top:4px;"></div><div style="width:16px;height:2px;background:#d4d4d4;margin-top:4px;"></div>';
} else if (icon.shape === 'dots') {
el.innerHTML = '<div style="display:flex;justify-content:space-around;align-items:center;height:100%;">' +
'<div style="width:5px;height:5px;border-radius:50%;background:#d4d4d4;"></div>' +
'<div style="width:5px;height:5px;border-radius:50%;background:#d4d4d4;"></div>' +
'<div style="width:5px;height:5px;border-radius:50%;background:#d4d4d4;"></div></div>';
} else if (icon.shape === 'circle') {
el.innerHTML = '<div style="width:18px;height:18px;border-radius:50%;border:2px solid #d4d4d4;"></div>';
} else if (icon.shape === 'grid') {
el.innerHTML = '<div style="display:grid;grid-template-columns:1fr 1fr;gap:2px;width:18px;height:18px;">' +
'<div style="background:#d4d4d4;"></div><div style="background:#d4d4d4;"></div>' +
'<div style="background:#d4d4d4;"></div><div style="background:#d4d4d4;"></div></div>';
}
if (icon.id === 'explorer') {
el.style.opacity = '1';
el.style.borderLeft = '2px solid var(--accent)';
el.style.marginLeft = '-2px';
}
el.addEventListener('click', () => {
icons.forEach((ic) => {
const e = document.getElementById(`vscode-icon-${ic.id}`);
if (e) { e.style.opacity = '0.5'; e.style.borderLeft = 'none'; }
});
el.style.opacity = '1';
el.style.borderLeft = '2px solid var(--accent)';
el.style.marginLeft = '-2px';
});
actBar.appendChild(el);
});
// File explorer (200px wide)
const explorer = document.createElement('div');
explorer.style.cssText = 'width:200px;background:#252526;border-right:1px solid #444444;display:flex;flex-direction:column;flex-shrink:0;';
const explLabel = document.createElement('div');
explLabel.style.cssText = 'padding:8px 12px;font-size:11px;font-weight:600;color:#bbbbbb;text-transform:uppercase;letter-spacing:0.05em;';
explLabel.textContent = 'Explorer';
explorer.appendChild(explLabel);
const folderLabel = document.createElement('div');
folderLabel.style.cssText = 'padding:4px 12px;font-size:12px;color:#9cdcfe;font-weight:600;cursor:pointer;';
folderLabel.textContent = 'MERIDIAN-OS';
explorer.appendChild(folderLabel);
FILES.forEach((file, i) => {
const row = document.createElement('div');
row.style.cssText = 'padding:4px 12px 4px 24px;font-size:13px;color:#cccccc;cursor:pointer;display:flex;align-items:center;transition:background 100ms;';
const ext = file.path.split('.').pop();
const tsColor = ext === 'ts' ? '#519aba' : (ext === 'md' ? '#82aaff' : '#cccccc');
row.innerHTML = `<span style="color:${tsColor};margin-right:6px;font-weight:600;">${ext === 'md' ? 'M' : '{ }'}</span>${file.path}`;
row.addEventListener('click', () => {
activeFile = i;
updateEditor();
});
explorer.appendChild(row);
});
// Editor area
const editor = document.createElement('div');
editor.style.cssText = 'flex:1;overflow:auto;padding:16px 20px;background:#1e1e1e;';
const editorContent = document.createElement('pre');
editorContent.style.cssText = 'margin:0;font-family:Consolas,Menlo,Monaco,monospace;font-size:13px;line-height:1.6;white-space:pre;tab-size:2;';
function updateEditor() {
editorContent.innerHTML = '<span style="color:#858585;">' +
Array.from({ length: FILES[activeFile].content.split('\n').length }, (_, i) => i + 1).join('\n') +
'</span> ' + highlightTS(FILES[activeFile].content);
}
updateEditor();
editor.appendChild(editorContent);
// Body container
const body = document.createElement('div');
body.style.cssText = 'flex:1;display:flex;overflow:hidden;';
body.appendChild(explorer);
body.appendChild(editor);
// Status bar
const statusBar = document.createElement('div');
statusBar.style.cssText = 'height:22px;background:#007acc;display:flex;align-items:center;padding:0 12px;font-size:12px;color:#ffffff;flex-shrink:0;gap:16px;';
statusBar.innerHTML = '<span>main</span><span>\u{2713} 0 problems</span><span>UTF-8</span><span>TypeScript</span>';
root.appendChild(actBar);
root.appendChild(body);
root.appendChild(statusBar);
container.appendChild(root);
},
};

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import State from './state.js';
import Bus from './bus.js';
const Auth = (() => {
function login(name) {
const trimmed = name.trim();
if (!trimmed) return;
const initials = trimmed.slice(0, 2).toUpperCase();
State.set('user', { name: trimmed, initials });
document.getElementById('login').classList.add('hidden');
const desktop = document.getElementById('desktop');
desktop.classList.remove('hidden');
desktop.hidden = false;
Bus.emit('user:login', { name: trimmed });
// Persist login session
localStorage.setItem('meridian:session', trimmed);
}
function logout() {
State.set('user', null);
localStorage.removeItem('meridian:session');
location.reload();
}
function init() {
const session = localStorage.getItem('meridian:session');
if (session) {
const trimmed = session.trim();
if (trimmed) {
const initials = trimmed.slice(0, 2).toUpperCase();
State.set('user', { name: trimmed, initials });
const loginEl = document.getElementById('login');
if (loginEl) loginEl.classList.add('hidden');
const desktop = document.getElementById('desktop');
if (desktop) {
desktop.classList.remove('hidden');
desktop.hidden = false;
}
return;
}
}
// Wire login form
const btn = document.getElementById('login-btn');
const input = document.getElementById('login-input');
const submit = () => { if (input && input.value.trim()) login(input.value); };
if (btn) btn.addEventListener('click', submit);
if (input) {
input.addEventListener('keydown', (e) => {
if (e.key === 'Enter') { e.preventDefault(); submit(); }
});
setTimeout(() => input.focus(), 50);
}
// Live clock on login screen
const loginTime = document.getElementById('login-time');
if (loginTime) {
const tick = () => {
const d = new Date();
const hh = String(d.getHours()).padStart(2, '0');
const mm = String(d.getMinutes()).padStart(2, '0');
loginTime.textContent = `${hh}:${mm}`;
};
tick();
setInterval(tick, 1000 * 30);
}
}
return { login, logout, init };
})();
export default Auth;
export { Auth };

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/**
* Simple pub/sub event bus.
* on(evt, cb) - subscribe
* emit(evt, data) - publish
*/
const Bus = (() => {
const listeners = new Map();
return {
on(evt, cb) {
if (!listeners.has(evt)) listeners.set(evt, new Set());
listeners.get(evt).add(cb);
return () => this.off(evt, cb);
},
off(evt, cb) {
const set = listeners.get(evt);
if (set) {
set.delete(cb);
if (set.size === 0) listeners.delete(evt);
}
},
emit(evt, data) {
const set = listeners.get(evt);
if (set) {
for (const cb of set) {
try { cb(data); } catch (e) { console.error(`Bus emit error (${evt}):`, e); }
}
}
}
};
})();
export default Bus;
export { Bus };

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import MeridianWM from './wm.js';
import State from './state.js';
import Bus from './bus.js';
const Registry = (() => {
const APPS = {};
let _launcherOpen = false;
function registerApp(def) {
if (def.id) {
APPS[def.id] = def;
}
}
function unregisterApp(id) {
delete APPS[id];
}
function getApp(id) {
return APPS[id] || null;
}
function launchApp(id) {
const def = APPS[id];
if (!def) {
console.warn(`App ${id} not registered`);
return;
}
const title = def.title || id;
const w = def.width || 640;
const h = def.height || 480;
// Create window with a render-callback; wm will mount container then call it.
const win = MeridianWM.openWindow({
app: id,
title,
w, h,
content: (container) => {
// Tag container for per-app CSS scoping
container.setAttribute('data-app', id);
const api = {
state: State,
bus: Bus,
close: () => MeridianWM.closeWindow(win && win.id),
setTitle: (t) => {
const el = document.getElementById(win && win.id);
if (el) {
const titleEl = el.querySelector('.m-window-title');
if (titleEl) titleEl.textContent = t;
}
},
};
try {
def.render(container, api);
} catch (e) {
container.textContent = `Error loading ${id}: ${e.message}`;
console.error(`[${id}] render error`, e);
}
},
});
closeLauncher();
}
function getRegisteredApps() {
return Object.values(APPS);
}
function toggleLauncher() {
_launcherOpen = !_launcherOpen;
const popover = document.getElementById('launcher-popover');
const btn = document.getElementById('launcher');
if (popover) {
if (_launcherOpen) {
renderLauncherApps(popover);
popover.classList.remove('hidden');
} else {
popover.classList.add('hidden');
}
}
if (btn) {
btn.classList.toggle('active', _launcherOpen);
}
return _launcherOpen;
}
function closeLauncher() {
_launcherOpen = false;
const popover = document.getElementById('launcher-popover');
const btn = document.getElementById('launcher');
if (popover) popover.classList.add('hidden');
if (btn) btn.classList.remove('active');
}
function renderLauncherApps(popover) {
const apps = getRegisteredApps();
popover.innerHTML = '';
if (apps.length === 0) {
popover.innerHTML = '<div style="padding:12px;text-align:center;color:var(--text-faint);font-size:13px;">No apps registered</div>';
return;
}
for (const app of apps) {
const btn = document.createElement('button');
btn.className = 'launcher-app-btn';
btn.setAttribute('aria-label', `Launch ${app.title || app.id}`);
btn.innerHTML = `
<div class="launcher-app-icon">${app.icon || '&#9670;'}</div>
<div class="launcher-app-label">${escapeHtml(app.title || app.id)}</div>
`;
btn.addEventListener('click', () => launchApp(app.id));
popover.appendChild(btn);
}
}
function escapeHtml(str) {
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
function init() {
const btn = document.getElementById('launcher');
if (btn) {
btn.addEventListener('click', toggleLauncher);
}
// Close launcher when clicking elsewhere
document.addEventListener('mousedown', (e) => {
if (_launcherOpen && !e.target.closest('#launcher') && !e.target.closest('#launcher-popover')) {
closeLauncher();
}
});
}
return {
APPS,
registerApp,
unregisterApp,
getApp,
launchApp,
getRegisteredApps,
toggleLauncher,
init
};
})();
export default Registry;
export { Registry };

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/**
* Central state store with persistence.
* Keys: user, windows, wallpaper, achievements, connection
*/
const STORAGE_KEY = 'meridian:state';
const State = (() => {
const listeners = new Map();
let _state = loadState();
function loadState() {
try {
const raw = localStorage.getItem(STORAGE_KEY);
if (raw) {
const parsed = JSON.parse(raw);
// achievements is stored as array, reconstruct as Set
if (parsed.achievements) {
parsed._achievementSet = new Set(parsed.achievements);
}
return parsed;
}
} catch (e) {
console.warn('State load failed:', e);
}
return {
user: null,
windows: [],
wallpaper: 'graphite',
achievements: [],
_achievementSet: new Set(),
connection: navigator.onLine
};
}
function saveState() {
try {
const toSave = {
user: _state.user,
windows: _state.windows,
wallpaper: _state.wallpaper,
achievements: Array.from(_state._achievementSet || _state.achievements)
};
localStorage.setItem(STORAGE_KEY, JSON.stringify(toSave));
} catch (e) {
console.warn('State save failed:', e);
}
}
function set(key, val) {
_state[key] = val;
saveState();
notify(key);
}
function get(key) {
return _state[key];
}
function subscribe(key, cb) {
if (!listeners.has(key)) listeners.set(key, new Set());
listeners.get(key).add(cb);
// immediate call with current value
try { cb(_state[key]); } catch (e) { console.error('State subscribe error:', e); }
return () => off(key, cb);
}
function off(key, cb) {
const set = listeners.get(key);
if (set) {
set.delete(cb);
if (set.size === 0) listeners.delete(key);
}
}
function notify(key) {
const set = listeners.get(key);
if (set) {
for (const cb of set) {
try { cb(_state[key]); } catch (e) { console.error('State notify error:', e); }
}
}
}
function addAchievement(id) {
if (!_state._achievementSet) {
_state._achievementSet = new Set(_state.achievements || []);
_state.achievements = Array.from(_state._achievementSet);
}
_state._achievementSet.add(id);
_state.achievements = Array.from(_state._achievementSet);
saveState();
notify('achievements');
}
function initConnection() {
_state.connection = navigator.onLine;
window.addEventListener('online', () => { _state.connection = true; notify('connection'); saveState(); });
window.addEventListener('offline', () => { _state.connection = false; notify('connection'); saveState(); });
}
return {
set, get, subscribe, off, addAchievement, initConnection
};
})();
export default State;
export { State };

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import State from './state.js';
import Bus from './bus.js';
let windowIdCounter = 0;
function createWindow(options) {
const { app, title, content, w = 640, h = 480 } = options;
const id = 'win-' + (++windowIdCounter);
// Cascade position
const count = State.get('windows').length;
const offsetX = 40 + (count * 30) % 200;
const offsetY = 30 + (count * 30) % 150;
const layer = document.getElementById('windows-layer');
if (!layer) return null;
const el = document.createElement('div');
el.className = 'm-window focused';
el.id = id;
el.style.left = offsetX + 'px';
el.style.top = offsetY + 'px';
el.style.width = w + 'px';
el.style.height = h + 'px';
el.style.zIndex = 10 + count;
el.innerHTML = `
<div class="m-window-header" data-wm-drag="${id}">
<span class="m-window-title">${escapeHtml(title)}</span>
<div class="m-window-controls">
<button class="m-window-btn minimize-btn" aria-label="Minimize" data-wm-action="minimize" data-wm-target="${id}">&#8723;</button>
<button class="m-window-btn close-btn" aria-label="Close" data-wm-action="close" data-wm-target="${id}">&times;</button>
</div>
</div>
<div class="m-window-body" data-wm-content="${id}"></div>
<div class="m-window-resize" data-wm-resize="${id}"></div>
`;
layer.appendChild(el);
// Render content
const body = el.querySelector('.m-window-body');
if (typeof content === 'string') {
body.innerHTML = content;
} else if (content instanceof HTMLElement) {
body.innerHTML = '';
body.appendChild(content);
} else if (typeof content === 'function') {
body.innerHTML = '';
content(body);
}
// Setup drag
setupDrag(el, id);
// Setup resize
setupResize(el, id);
// Setup focus
el.addEventListener('mousedown', () => focusWindow(id));
// Setup header button clicks
el.querySelector('.minimize-btn').addEventListener('click', (e) => {
e.stopPropagation();
minimizeWindow(id);
});
el.querySelector('.close-btn').addEventListener('click', (e) => {
e.stopPropagation();
closeWindow(id);
});
// Track in state
const windows = State.get('windows');
windows.push({ id, app, title, minimized: false });
State.set('windows', windows);
Bus.emit('app:open', { app, id });
return id;
}
function closeWindow(id) {
const el = document.getElementById(id);
if (!el) return;
// Find window data
const windows = State.get('windows');
const idx = windows.findIndex(w => w.id === id);
if (idx !== -1) {
const win = windows[idx];
windows.splice(idx, 1);
State.set('windows', windows);
Bus.emit('app:close', { app: win.app, id });
}
el.remove();
}
function minimizeWindow(id) {
const el = document.getElementById(id);
if (!el) return;
el.classList.add('minimized');
const windows = State.get('windows');
const win = windows.find(w => w.id === id);
if (win) win.minimized = true;
State.set('windows', windows);
// If this was the focused window, focus the next available
const focusable = windows.filter(w => !w.minimized);
if (focusable.length > 0) {
focusWindow(focusable[focusable.length - 1].id);
}
}
function focusWindow(id) {
const el = document.getElementById(id);
if (!el) return;
// Remove focus from all
document.querySelectorAll('.m-window.focused').forEach(w => w.classList.remove('focused'));
el.classList.add('focused');
// Bring to front
const maxZ = Math.max(0, ...Array.from(document.querySelectorAll('.m-window')).map(w =>
parseInt(w.style.zIndex || 0)
));
el.style.zIndex = maxZ + 1;
const windows = State.get('windows');
const win = windows.find(w => w.id === id);
if (win) {
win.minimized = false;
State.set('windows', windows);
}
Bus.emit('window:focused', { id });
}
function setupDrag(el, id) {
const header = el.querySelector('.m-window-header');
if (!header) return;
let isDragging = false;
let startX, startY, startLeft, startTop;
header.addEventListener('mousedown', (e) => {
if (e.target.closest('.m-window-controls')) return;
isDragging = true;
startX = e.clientX;
startY = e.clientY;
startLeft = el.offsetLeft;
startTop = el.offsetTop;
document.body.style.cursor = 'move';
const onMove = (e2) => {
if (!isDragging) return;
const dx = e2.clientX - startX;
const dy = e2.clientY - startY;
el.style.left = Math.max(0, startLeft + dx) + 'px';
el.style.top = Math.max(0, startTop + dy) + 'px';
};
const onUp = () => {
isDragging = false;
document.body.style.cursor = '';
document.removeEventListener('mousemove', onMove);
document.removeEventListener('mouseup', onUp);
};
document.addEventListener('mousemove', onMove);
document.addEventListener('mouseup', onUp);
});
// Touch support
header.addEventListener('touchstart', (e) => {
if (e.target.closest('.m-window-controls')) return;
const touch = e.touches[0];
isDragging = true;
startX = touch.clientX;
startY = touch.clientY;
startLeft = el.offsetLeft;
startTop = el.offsetTop;
const onMove = (e2) => {
if (!isDragging) return;
const touch2 = e2.touches[0];
const dx = touch2.clientX - startX;
const dy = touch2.clientY - startY;
el.style.left = Math.max(0, startLeft + dx) + 'px';
el.style.top = Math.max(0, startTop + dy) + 'px';
};
const onEnd = () => {
isDragging = false;
document.removeEventListener('touchmove', onMove);
document.removeEventListener('touchend', onEnd);
};
document.addEventListener('touchmove', onMove);
document.addEventListener('touchend', onEnd);
}, { passive: true });
}
function setupResize(el, id) {
const handle = el.querySelector('.m-window-resize');
if (!handle) return;
let isResizing = false;
let startX, startY, startW, startH;
handle.addEventListener('mousedown', (e) => {
e.preventDefault();
e.stopPropagation();
isResizing = true;
startX = e.clientX;
startY = e.clientY;
startW = el.offsetWidth;
startH = el.offsetHeight;
const onMove = (e2) => {
if (!isResizing) return;
const dx = e2.clientX - startX;
const dy = e2.clientY - startY;
const newW = Math.max(320, startW + dx);
const newH = Math.max(240, startH + dy);
el.style.width = newW + 'px';
el.style.height = newH + 'px';
};
const onUp = () => {
isResizing = false;
document.removeEventListener('mousemove', onMove);
document.removeEventListener('mouseup', onUp);
};
document.addEventListener('mousemove', onMove);
document.addEventListener('mouseup', onUp);
});
// Touch support for resize
handle.addEventListener('touchstart', (e) => {
e.preventDefault();
const touch = e.touches[0];
isResizing = true;
startX = touch.clientX;
startY = touch.clientY;
startW = el.offsetWidth;
startH = el.offsetHeight;
const onMove = (e2) => {
if (!isResizing) return;
const touch2 = e2.touches[0];
const dx = touch2.clientX - startX;
const dy = touch2.clientY - startY;
const newW = Math.max(320, startW + dx);
const newH = Math.max(240, startH + dy);
el.style.width = newW + 'px';
el.style.height = newH + 'px';
};
const onEnd = () => {
isResizing = false;
document.removeEventListener('touchmove', onMove);
document.removeEventListener('touchend', onEnd);
};
document.addEventListener('touchmove', onMove);
document.addEventListener('touchend', onEnd);
}, { passive: false });
}
function escapeHtml(str) {
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
const MeridianWM = {
openWindow: createWindow,
closeWindow,
minimizeWindow,
focusWindow
};
export default MeridianWM;
export { MeridianWM };

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import State from './core/state.js';
import Auth from './core/auth.js';
import Bus from './core/bus.js';
import MeridianWM from './core/wm.js';
import Registry from './core/registry.js';
// Import widgets
import './widgets/clock.js';
import './widgets/active-apps.js';
import './widgets/achievements.js';
// Import wallpaper
import './widgets/wallpaper.js';
// Import apps
import notepad from './apps/notepad.js';
import music from './apps/music.js';
import terminal from './apps/terminal.js';
import steam from './apps/steam.js';
import vscode from './apps/vscode.js';
import postman from './apps/postman.js';
import chrome from './apps/chrome.js';
// Import achievements engine
import AchievementsEngine from './achievements/engine.js';
// Initialize
function init() {
State.initConnection();
Auth.init();
Registry.init();
// Register all 7 apps
[notepad, music, terminal, steam, vscode, postman, chrome].forEach(app => Registry.registerApp(app));
// Initialize achievements engine
AchievementsEngine.init();
setupTaskbarApps();
}
function setupTaskbarApps() {
// Status bar user display
State.subscribe('user', (user) => {
const statusBar = document.getElementById('status-bar');
if (!statusBar) return;
const existing = statusBar.querySelector('.status-user');
if (existing) existing.remove();
if (user) {
const div = document.createElement('div');
div.className = 'status-user';
div.innerHTML = `
<div class="status-avatar" aria-label="${escapeHtml(user.name)}">${escapeHtml(user.initials)}</div>
<span class="status-name">${escapeHtml(user.name)}</span>
<span class="status-separator">&#8226;</span>
<span class="status-connection">
<span class="connection-dot ${State.get('connection') ? 'online' : ''}" aria-label="Connection status"></span>
</span>
`;
statusBar.appendChild(div);
}
});
// Connection status
State.subscribe('connection', (connected) => {
const dot = document.querySelector('.connection-dot');
if (dot) {
dot.classList.toggle('online', !!connected);
}
});
}
function escapeHtml(str) {
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
// Initialize on DOM ready
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}

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import State from '../core/state.js';
import { Bus } from '../core/bus.js';
function renderAchievements(achievements) {
const container = document.getElementById('achievements-list');
if (!container) return;
if (!achievements || achievements.length === 0) {
container.innerHTML = '<div class="achievements-empty">No achievements yet</div>';
return;
}
// Show last 3
const last3 = achievements.slice(-3).reverse();
container.innerHTML = '';
for (const achId of last3) {
const item = document.createElement('div');
item.className = 'achievement-item';
item.innerHTML = `
<div class="achievement-icon">${getInitial(achId)}</div>
<div class="achievement-info">
<span class="achievement-name">${escapeHtml(achId)}</span>
<span class="achievement-game">Unlocked</span>
</div>
`;
container.appendChild(item);
}
}
function getInitial(id) {
return id.charAt(0).toUpperCase();
}
function escapeHtml(str) {
const div = document.createElement('div');
div.textContent = str;
return div.innerHTML;
}
function showToast({ id, title, desc }) {
const layer = document.getElementById('toast-layer');
if (!layer) return;
const toast = document.createElement('div');
toast.className = 'toast';
toast.innerHTML = `
<div>
<div class="toast-title">Achievement Unlocked</div>
<div class="toast-desc">${escapeHtml(title || desc || id)}</div>
</div>
<button class="toast-close" aria-label="Dismiss">&times;</button>
`;
layer.appendChild(toast);
// Close button
toast.querySelector('.toast-close').addEventListener('click', () => removeToast(toast));
// Auto dismiss
setTimeout(() => removeToast(toast), 4000);
}
function removeToast(toast) {
if (!toast.parentNode) return;
toast.classList.add('toast-removing');
setTimeout(() => toast.remove(), 300);
}
function init() {
State.subscribe('achievements', renderAchievements);
// Listen for achievement unlocks
Bus.on('achievement:unlocked', showToast);
}
init();

33
js/widgets/active-apps.js Normal file
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import State from '../core/state.js';
import MeridianWM from '../core/wm.js';
import Registry from '../core/registry.js';
function renderApps(apps) {
const container = document.getElementById('active-apps-list');
if (!container) return;
if (!apps || apps.length === 0) {
container.innerHTML = '<div class="active-apps-empty">No apps open</div>';
return;
}
container.innerHTML = '';
for (const win of apps) {
const btn = document.createElement('button');
btn.className = 'active-app-chip';
btn.setAttribute('aria-label', `Focus ${win.title}`);
btn.textContent = win.title;
btn.addEventListener('click', () => {
MeridianWM.focusWindow(win.id);
});
container.appendChild(btn);
}
}
function init() {
State.subscribe('windows', renderApps);
}
init();

39
js/widgets/clock.js Normal file
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import State from '../core/state.js';
const DAYS = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
const MONTHS = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
function formatTime(date) {
let h = date.getHours();
const m = date.getMinutes().toString().padStart(2, '0');
const ampm = h >= 12 ? 'PM' : 'AM';
h = h % 12 || 12;
return `${h}:${m} ${ampm}`;
}
function formatDate(date) {
return `${DAYS[date.getDay()]}, ${MONTHS[date.getMonth()]} ${date.getDate()}`;
}
function updateClock() {
const now = new Date();
const timeEl = document.getElementById('clock-time');
const dateEl = document.getElementById('clock-date');
if (timeEl) timeEl.textContent = formatTime(now);
if (dateEl) dateEl.textContent = formatDate(now);
// Update login screen time
const loginTimeEl = document.getElementById('login-time');
if (loginTimeEl) loginTimeEl.textContent = formatTime(now);
// Update taskbar time
const statusTimeEl = document.getElementById('status-time');
if (statusTimeEl) statusTimeEl.textContent = formatTime(now);
}
function init() {
updateClock();
setInterval(updateClock, 1000);
}
init();

138
js/widgets/wallpaper.js Normal file
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import State from '../core/state.js';
import { Bus } from '../core/bus.js';
const WALLPAPERS = {
graphite: {
name: 'Graphite',
gradient: 'radial-gradient(ellipse at center, #1e2126 0%, #0f1114 100%)'
},
ember: {
name: 'Ember',
gradient: 'linear-gradient(135deg, #1a1d21 0%, #2a1f15 40%, #d4a24c33 100%)'
},
tide: {
name: 'Tide',
gradient: 'linear-gradient(160deg, #0a1628 0%, #0f2847 40%, #14425a 70%, #1a5c6e 100%)'
},
vellum: {
name: 'Vellum',
gradient: 'linear-gradient(145deg, #1e1c1a 0%, #2a2520 50%, #332e28 100%)'
},
eclipse: {
name: 'Eclipse',
gradient: 'linear-gradient(160deg, #0a0a0f 0%, #150f20 50%, #1a1030 100%)'
},
terminal: {
name: 'Terminal',
gradient: 'radial-gradient(ellipse at 20% 50%, #0a1a0a 0%, #0f1410 40%, #0a0f0a 100%)'
}
};
let currentWp = null;
let applying = false;
function applyWallpaper(id) {
if (applying) return;
const wp = WALLPAPERS[id];
if (!wp) return;
const layer = document.getElementById('wallpaper-layer');
if (!layer) return;
applying = true;
// Crossfade
const overlay = document.createElement('div');
overlay.style.position = 'absolute';
overlay.style.inset = '0';
overlay.style.background = wp.gradient;
overlay.style.opacity = '0';
overlay.style.transition = 'opacity 250ms ease';
overlay.style.zIndex = '1';
layer.appendChild(overlay);
requestAnimationFrame(() => {
overlay.style.opacity = '1';
if (currentWp && currentWp !== overlay) {
const old = currentWp;
old.style.opacity = '0';
setTimeout(() => old.remove(), 300);
}
currentWp = overlay;
});
if (State.get('wallpaper') !== id) {
State.set('wallpaper', id);
}
applying = false;
// Update picker swatches
document.querySelectorAll('.wallpaper-swatch').forEach(s => {
s.classList.toggle('active', s.dataset.id === id);
});
}
function initPicker() {
const picker = document.getElementById('wallpaper-picker');
const grid = document.getElementById('wallpaper-picker-grid');
if (!picker || !grid) return;
// Populate swatches
for (const [id, wp] of Object.entries(WALLPAPERS)) {
const swatch = document.createElement('div');
swatch.className = 'wallpaper-swatch';
swatch.dataset.id = id;
swatch.setAttribute('role', 'button');
swatch.setAttribute('aria-label', `Select ${wp.name} wallpaper`);
swatch.style.background = wp.gradient;
swatch.innerHTML = `<span class="wallpaper-swatch-label">${wp.name}</span>`;
swatch.addEventListener('click', () => applyWallpaper(id));
grid.appendChild(swatch);
}
// Apply saved wallpaper
const saved = State.get('wallpaper');
if (saved && WALLPAPERS[saved]) {
applyWallpaper(saved);
}
// Toggle button in status bar
const toggleBtn = document.getElementById('wallpaper-toggle');
if (toggleBtn) {
toggleBtn.addEventListener('click', () => {
picker.classList.toggle('hidden');
});
}
// Close picker on backdrop click
picker.addEventListener('click', (e) => {
if (e.target === picker) {
picker.classList.add('hidden');
}
});
// Close on Escape
document.addEventListener('keydown', (e) => {
if (e.key === 'Escape' && !picker.classList.contains('hidden')) {
picker.classList.add('hidden');
}
});
}
function init() {
// Listen for state changes to wallpaper (external triggers only; applying flag prevents recursion)
State.subscribe('wallpaper', (id) => {
if (id && WALLPAPERS[id]) {
applyWallpaper(id);
}
});
// Apply saved or default
const saved = State.get('wallpaper');
const wpId = (saved && WALLPAPERS[saved]) ? saved : 'graphite';
applyWallpaper(wpId);
initPicker();
}
init();

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serve.sh Executable file
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#!/usr/bin/env bash
# Meridian OS — start local server on a stable port.
# Usage: ./serve.sh [port] (default 8921)
set -e
PORT="${1:-8921}"
cd "$(dirname "$0")"
# Kill any stale server on this port
lsof -ti:"$PORT" 2>/dev/null | xargs -r kill 2>/dev/null || true
echo "Serving Meridian OS at http://localhost:$PORT"
exec python3 -m http.server "$PORT"