feat: add 'go-local-rag-email' project to the Projects list and update terminal commands

.gitea/workflows/deploy.yml

@@ -0,0 +1,22 @@
+  name: Deploy                                                                  
+                                                                                
+  on:                                                                           
+    push:                                                                       
+      branches:                                                                 
+        - master                                                                
+                                                                                
+  jobs:
+    deploy:                                                                     
+      runs-on: ubuntu-latest
+      steps:
+        - name: Checkout
+          uses: actions/checkout@v4
+                                                                                
+        - name: Install & Build
+          run: npm ci && npm run build                                          
+                  
+        - name: Deploy
+          run: |
+            mkdir -p /var/www/os.m1ngdaxie.com
+            rm -rf /var/www/os.m1ngdaxie.com/*
+            cp -r dist/* /var/www/os.m1ngdaxie.com/    

.gitignore

@@ -22,3 +22,6 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+.superpowers
+docs

docs/superpowers/plans/2026-03-26-pixel-hybrid-reskin.md

@@ -0,0 +1,662 @@
+# MingdaOS Pixel Hybrid Reskin Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Restyle MingdaOS from glassmorphism macOS to a pixel hybrid aesthetic — Press Start 2P font, cyan `#00ffff` accent, sharp corners, hard shadows, opaque surfaces, no backdrop-filter blur.
+
+**Architecture:** Pure CSS/style changes across 10 files. No logic, no new components, no new dependencies beyond adding Press Start 2P to Google Fonts. Each task is one file or one tightly related set of changes.
+
+**Tech Stack:** CSS variables, Google Fonts (Press Start 2P), existing React + Vite stack
+
+---
+
+## File Map
+
+```
+Modified only — no new files:
+├── index.html                              # Swap Google Fonts link
+├── src/
+│   ├── App.css                             # CSS variables overhaul
+│   ├── config/apps.ts                      # WALLPAPERS → pixel CSS patterns
+│   ├── components/Desktop/Desktop.css     # background-size for dot grid wallpaper
+│   ├── apps/Terminal.tsx                   # Prompt color #64d2ff → #00ffff
+│   └── components/
+│       ├── BootScreen/BootScreen.css       # Cyan progress bar
+│       ├── MenuBar/MenuBar.css             # Opaque bg, cyan text, no blur
+│       ├── Window/Window.css               # Sharp corners, hard shadow, opaque
+│       ├── Dock/Dock.css                   # Sharp corners, hard shadow, steps() hover
+│       ├── DesktopIcon/DesktopIcon.css     # Sharp corners, cyan label
+│       └── ContextMenu/ContextMenu.css     # Sharp corners, cyan hover, no blur
+```
+
+---
+
+## Task 1: Google Fonts + CSS variables
+
+**Files:**
+- Modify: `index.html`
+- Modify: `src/App.css`
+
+- [ ] **Step 1: Update Google Fonts in `index.html`**
+
+Find the existing fonts link (lines 8-10) and replace with:
+```html
+<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=Press+Start+2P&family=Fira+Code:wght@400;500&display=swap" rel="stylesheet">
+```
+(Removed Outfit, added Press Start 2P, kept Fira Code)
+
+- [ ] **Step 2: Overhaul CSS variables in `src/App.css`**
+
+Replace the entire file with:
+```css
+*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
+
+:root {
+  --font-ui: 'Press Start 2P', monospace;
+  --font-mono: 'Fira Code', 'Courier New', monospace;
+
+  --accent-red: #ff453a;
+  --accent-yellow: #ffd60a;
+  --accent-green: #30d158;
+  --accent-blue: #0a84ff;
+  --accent-purple: #bf5af2;
+  --accent-teal: #00ffff;
+  --accent-cyan: #00ffff;
+
+  --glass-bg: #0d0d1a;
+  --glass-border: #333333;
+  --glass-blur: none;
+  --glass-shadow: 4px 4px 0 #000000;
+  --radius-window: 0px;
+  --radius-icon: 0px;
+
+  --menubar-height: 28px;
+  --dock-height: 72px;
+  --titlebar-height: 36px;
+
+  --pixel-border: 2px solid #333333;
+  --pixel-shadow: 4px 4px 0 #000000;
+  --pixel-cyan: #00ffff;
+}
+
+html, body, #root {
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+  font-family: var(--font-ui);
+  -webkit-font-smoothing: none;
+  font-smooth: never;
+  image-rendering: pixelated;
+}
+```
+
+- [ ] **Step 3: Verify build**
+```bash
+cd /Users/xiemingda/mingda-os && npm run build 2>&1 | tail -5
+```
+Expected: `✓ built` with no errors.
+
+- [ ] **Step 4: Commit**
+```bash
+git add index.html src/App.css
+git commit -m "feat(pixel): swap fonts to Press Start 2P and overhaul CSS variables"
+```
+
+---
+
+## Task 2: MenuBar styles
+
+**Files:**
+- Modify: `src/components/MenuBar/MenuBar.css`
+
+- [ ] **Step 1: Replace `MenuBar.css` entirely**
+
+```css
+.menubar {
+  position: fixed;
+  top: 0;
+  left: 0;
+  right: 0;
+  height: var(--menubar-height);
+  background: #080816;
+  border-bottom: 2px solid rgba(0, 255, 255, 0.2);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 0 12px;
+  z-index: 1000;
+  user-select: none;
+}
+
+.menubar-left {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+}
+
+.menubar-logo {
+  font-size: 14px;
+  margin-right: 8px;
+  cursor: default;
+  color: var(--pixel-cyan);
+}
+
+.menubar-item {
+  font-size: 8px;
+  font-weight: 400;
+  color: var(--pixel-cyan);
+  padding: 2px 8px;
+  cursor: default;
+  letter-spacing: 0.5px;
+}
+
+.menubar-item:hover {
+  background: rgba(0, 255, 255, 0.15);
+}
+
+.menubar-right {
+  display: flex;
+  align-items: center;
+}
+
+.menubar-clock {
+  font-size: 8px;
+  color: var(--pixel-cyan);
+  letter-spacing: 0.5px;
+}
+```
+
+- [ ] **Step 2: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add src/components/MenuBar/MenuBar.css
+git commit -m "feat(pixel): restyle menubar — opaque bg, cyan text, pixel border"
+```
+
+---
+
+## Task 3: Window styles
+
+**Files:**
+- Modify: `src/components/Window/Window.css`
+
+- [ ] **Step 1: Replace `Window.css` entirely**
+
+```css
+.window {
+  background: #0d0d1a;
+  border: 2px solid #333333;
+  border-radius: 0;
+  box-shadow: var(--pixel-shadow);
+  display: flex;
+  flex-direction: column;
+  overflow: hidden;
+  transition: opacity 0.15s;
+}
+
+.window--focused {
+  border-color: rgba(0, 255, 255, 0.4);
+}
+
+.window--unfocused {
+  opacity: 0.72;
+}
+
+.window-titlebar {
+  height: var(--titlebar-height);
+  background: #111122;
+  display: flex;
+  align-items: center;
+  padding: 0 12px;
+  cursor: move;
+  border-bottom: 2px solid #333333;
+  flex-shrink: 0;
+  gap: 8px;
+  position: relative;
+}
+
+.traffic-lights {
+  display: flex;
+  gap: 6px;
+  flex-shrink: 0;
+}
+
+.traffic-light {
+  width: 12px;
+  height: 12px;
+  border-radius: 0;
+  border: 1px solid rgba(0,0,0,0.5);
+  cursor: pointer;
+  position: relative;
+  transition: filter 0.1s;
+}
+
+.window--unfocused .traffic-light {
+  background: #444 !important;
+}
+
+.traffic-light--close { background: var(--accent-red); }
+.traffic-light--minimize { background: var(--accent-yellow); }
+.traffic-light--maximize { background: var(--accent-green); }
+
+.traffic-lights:hover .traffic-light--close::after { content: '✕'; }
+.traffic-lights:hover .traffic-light--minimize::after { content: '−'; }
+.traffic-lights:hover .traffic-light--maximize::after { content: '+'; }
+
+.traffic-light::after {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 8px;
+  font-weight: 700;
+  color: rgba(0,0,0,0.7);
+  line-height: 1;
+}
+
+.window-title {
+  flex: 1;
+  text-align: center;
+  font-size: 9px;
+  font-weight: 400;
+  color: var(--pixel-cyan);
+  pointer-events: none;
+  position: absolute;
+  left: 50%;
+  transform: translateX(-50%);
+  letter-spacing: 1px;
+  white-space: nowrap;
+}
+
+.window-content {
+  flex: 1;
+  overflow: auto;
+  color: #fff;
+}
+```
+
+- [ ] **Step 2: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add src/components/Window/Window.css
+git commit -m "feat(pixel): restyle window — sharp corners, opaque bg, cyan title, hard shadow"
+```
+
+---
+
+## Task 4: Dock styles
+
+**Files:**
+- Modify: `src/components/Dock/Dock.css`
+
+- [ ] **Step 1: Replace `Dock.css` entirely**
+
+```css
+.dock-container {
+  position: fixed;
+  bottom: 8px;
+  left: 50%;
+  transform: translateX(-50%);
+  z-index: 500;
+}
+
+.dock {
+  display: flex;
+  align-items: flex-end;
+  gap: 6px;
+  background: #0d0d1a;
+  border: 2px solid #333333;
+  border-radius: 0;
+  padding: 8px 12px;
+  box-shadow: 3px 3px 0 #000000;
+}
+
+.dock-item {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 3px;
+  cursor: pointer;
+  position: relative;
+}
+
+.dock-item:hover .dock-icon {
+  transform: scale(1.18) translateY(-6px);
+}
+
+.dock-icon {
+  width: 48px;
+  height: 48px;
+  border-radius: 0;
+  border: 2px solid #000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 24px;
+  transition: transform 0.1s steps(2);
+  box-shadow: 2px 2px 0 #000;
+}
+
+.dock-dot {
+  width: 4px;
+  height: 4px;
+  border-radius: 0;
+  background: var(--pixel-cyan);
+}
+```
+
+- [ ] **Step 2: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add src/components/Dock/Dock.css
+git commit -m "feat(pixel): restyle dock — sharp corners, hard shadow, cyan dot, steps() hover"
+```
+
+---
+
+## Task 5: DesktopIcon + ContextMenu styles
+
+**Files:**
+- Modify: `src/components/DesktopIcon/DesktopIcon.css`
+- Modify: `src/components/ContextMenu/ContextMenu.css`
+
+- [ ] **Step 1: Replace `DesktopIcon.css` entirely**
+
+```css
+.desktop-icon {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 6px;
+  cursor: default;
+  width: 72px;
+  padding: 6px;
+  border-radius: 0;
+  transition: background 0.1s;
+}
+
+.desktop-icon:hover {
+  background: rgba(0, 255, 255, 0.08);
+}
+
+.desktop-icon-img {
+  width: 56px;
+  height: 56px;
+  border-radius: 0;
+  border: 2px solid #000;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 28px;
+  box-shadow: 3px 3px 0 #000;
+}
+
+.desktop-icon-label {
+  font-size: 8px;
+  color: var(--pixel-cyan);
+  text-align: center;
+  text-shadow: 1px 1px 0 #000;
+  max-width: 72px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  letter-spacing: 0.5px;
+}
+```
+
+- [ ] **Step 2: Replace `ContextMenu.css` entirely**
+
+```css
+.context-menu {
+  position: fixed;
+  background: #0d0d1a;
+  border: 2px solid #333333;
+  border-radius: 0;
+  box-shadow: 3px 3px 0 #000000;
+  padding: 4px;
+  min-width: 200px;
+  z-index: 9000;
+}
+
+.context-menu-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 10px;
+  border-radius: 0;
+  font-size: 8px;
+  color: rgba(255, 255, 255, 0.9);
+  cursor: default;
+  letter-spacing: 0.5px;
+}
+
+.context-menu-item:hover {
+  background: var(--pixel-cyan);
+  color: #000;
+}
+
+.context-menu-separator {
+  height: 2px;
+  background: #333333;
+  margin: 3px 6px;
+}
+```
+
+- [ ] **Step 3: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 4: Commit**
+```bash
+git add src/components/DesktopIcon/DesktopIcon.css src/components/ContextMenu/ContextMenu.css
+git commit -m "feat(pixel): restyle desktop icons and context menu"
+```
+
+---
+
+## Task 6: BootScreen styles + Terminal color
+
+**Files:**
+- Modify: `src/components/BootScreen/BootScreen.css`
+- Modify: `src/apps/Terminal.tsx`
+
+- [ ] **Step 1: Replace `BootScreen.css` entirely**
+
+```css
+.boot-screen {
+  position: fixed;
+  inset: 0;
+  background: #000;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: center;
+  gap: 48px;
+  z-index: 9999;
+}
+
+.boot-logo {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.boot-apple {
+  width: 80px;
+  height: 80px;
+  fill: #00ffff;
+  image-rendering: pixelated;
+}
+
+.boot-progress-track {
+  width: 200px;
+  height: 4px;
+  background: rgba(0, 255, 255, 0.15);
+  border: 1px solid rgba(0, 255, 255, 0.3);
+  overflow: hidden;
+}
+
+.boot-progress-bar {
+  height: 100%;
+  background: #00ffff;
+  transition: width 0.05s linear;
+  box-shadow: 0 0 8px #00ffff;
+}
+```
+
+- [ ] **Step 2: Update Terminal prompt color**
+
+In `src/apps/Terminal.tsx`, find the two places where `#64d2ff` is used for the prompt color and update them to `#00ffff`:
+
+Find:
+```tsx
+<span style={{ color: '#64d2ff', whiteSpace: 'nowrap' }}>{PROMPT}</span>
+```
+Replace with:
+```tsx
+<span style={{ color: '#00ffff', whiteSpace: 'nowrap' }}>{PROMPT}</span>
+```
+
+Find:
+```tsx
+caretColor: '#64d2ff',
+```
+Replace with:
+```tsx
+caretColor: '#00ffff',
+```
+
+Also update the input color line styling in the `lines.map`:
+Find:
+```tsx
+color: line.type === 'input' ? '#64d2ff' : '#e2e8f0',
+```
+Replace with:
+```tsx
+color: line.type === 'input' ? '#00ffff' : '#e2e8f0',
+```
+
+- [ ] **Step 3: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 4: Commit**
+```bash
+git add src/components/BootScreen/BootScreen.css src/apps/Terminal.tsx
+git commit -m "feat(pixel): cyan boot screen and terminal prompt color"
+```
+
+---
+
+## Task 7: Pixel wallpapers
+
+**Files:**
+- Modify: `src/config/apps.ts`
+
+- [ ] **Step 1: Replace the WALLPAPERS array in `src/config/apps.ts`**
+
+Find the `export const WALLPAPERS` array (near the bottom of the file) and replace it entirely with:
+
+```typescript
+export const WALLPAPERS = [
+  // Dot grid — dark with subtle cyan dot pattern
+  `radial-gradient(circle, rgba(0,255,255,0.07) 1px, transparent 1px),
+   radial-gradient(circle, rgba(0,255,255,0.04) 1px, transparent 1px),
+   linear-gradient(135deg, #050510 0%, #080818 100%)`,
+  // Scanlines — horizontal line texture
+  `repeating-linear-gradient(
+     0deg,
+     transparent,
+     transparent 2px,
+     rgba(0,255,255,0.03) 2px,
+     rgba(0,255,255,0.03) 4px
+   ),
+   linear-gradient(135deg, #050510 0%, #06060f 100%)`,
+  // Solid dark — flat and minimal
+  `linear-gradient(135deg, #050510 0%, #080818 100%)`,
+];
+```
+
+Also update the Desktop.tsx background-size to make the dot grid work. Find `src/components/Desktop/Desktop.css` and update `.desktop`:
+```css
+.desktop {
+  position: fixed;
+  inset: 0;
+  background-size: 24px 24px, 12px 12px, cover;
+  overflow: hidden;
+}
+```
+
+- [ ] **Step 2: Verify build**
+```bash
+npm run build 2>&1 | tail -5
+```
+
+- [ ] **Step 3: Commit**
+```bash
+git add src/config/apps.ts src/components/Desktop/Desktop.css
+git commit -m "feat(pixel): replace smooth gradient wallpapers with pixel-style CSS patterns"
+```
+
+---
+
+## Task 8: Final verification
+
+- [ ] **Step 1: Full production build**
+```bash
+npm run build
+```
+Expected: no errors, `dist/` updated.
+
+- [ ] **Step 2: Run dev server and manually verify**
+```bash
+npm run dev
+```
+Open http://localhost:5173 and check:
+- Boot screen: cyan Apple logo + cyan progress bar fills
+- Desktop: dot grid or scanline wallpaper visible
+- MenuBar: cyan text, opaque dark background, no glass blur
+- Desktop icons: sharp corners, cyan labels, hard shadows
+- Double-click icon → window opens with sharp corners, cyan title, `#111122` titlebar
+- Traffic lights: square (not round), red/yellow/green still colored
+- Focused window has subtle cyan border, unfocused dims to 72%
+- Right-click → context menu: sharp corners, cyan hover
+- Dock: square icons, hard shadow, cyan dot under open apps, snap hover animation
+- Terminal: `help`, `about`, `neofetch` — cyan prompt `mingda@doitou-sv ~ %`
+- Press Start 2P font visible throughout UI
+
+- [ ] **Step 3: Final commit**
+```bash
+git add -A
+git commit -m "chore: pixel hybrid reskin complete"
+```
+
+---
+
+## Verification Checklist
+
+- [ ] Press Start 2P font loaded and rendering (check browser DevTools Network tab)
+- [ ] No rounded corners anywhere on windows, dock, icons, context menu
+- [ ] No backdrop-filter blur on any element
+- [ ] All chrome backgrounds are opaque (no rgba semi-transparent blur)
+- [ ] Hard `4px 4px 0 #000` shadows on windows and dock
+- [ ] Cyan `#00ffff` on: menubar text, window titles, dock dots, desktop icon labels, terminal prompt, boot progress bar, boot Apple logo
+- [ ] Wallpaper is a pixel-style CSS pattern (dot grid / scanlines / solid)
+- [ ] `npm run build` clean with no errors

docs/superpowers/specs/2026-03-26-pixel-hybrid-reskin-design.md

@@ -0,0 +1,119 @@
+# MingdaOS Pixel Hybrid Reskin — Design Spec
+
+## Goal
+
+Restyle MingdaOS from a smooth glassmorphism macOS aesthetic to a pixel hybrid aesthetic: retro game OS vibes (Celeste/Shovel Knight), sharp edges, flat opaque surfaces, hard pixel shadows, Press Start 2P font, cyan accent color. No new functionality — visual layer changes only.
+
+## Design Decisions
+
+| Decision | Choice | Rationale |
+|---|---|---|
+| Font | Press Start 2P | Bold, chunky, unmistakably pixel |
+| Accent color | `#00ffff` (cyan) | Cyberpunk/sci-fi energy, high contrast on dark |
+| Style level | Pixel Hybrid (B) | Keep glassmorphism window system, replace chrome styling |
+| Border radius | 0 everywhere | Sharp corners = pixel aesthetic |
+| Backdrop filter | Removed | Glassmorphism blur is anti-pixel |
+| Shadows | Hard offset `4px 4px 0 #000` | Pixel-style depth instead of soft glow |
+
+## Typography
+
+- **Replace** `Outfit` with `Press Start 2P` for all UI chrome
+- **Keep** `Fira Code` for Terminal app only
+- **Remove** `-webkit-font-smoothing: antialiased` — pixel fonts render crisp, not smoothed
+- Font sizes: 8px labels, 10px titles (Press Start 2P reads large)
+- Update Google Fonts link in `index.html`
+
+## Color System
+
+| Variable | Old | New |
+|---|---|---|
+| `--accent-teal` / primary accent | `#64d2ff` | `#00ffff` |
+| `--glass-bg` | `rgba(30,30,40,0.55)` | `#0d0d1a` (opaque) |
+| `--glass-border` | `rgba(255,255,255,0.08)` | `#333333` |
+| `--glass-blur` | `blur(24px) saturate(1.4)` | `none` |
+| `--glass-shadow` | `0 8px 40px rgba(0,0,0,0.35)` | `4px 4px 0 #000000` |
+| Window bg | `rgba(30,30,40,0.55)` | `#0d0d1a` |
+| Titlebar bg | (same as window) | `#111122` |
+| Menubar bg | `rgba(20,20,28,0.72)` | `#080816` |
+| Dock bg | `rgba(30,30,40,0.52)` | `#0d0d1a` |
+
+## Components
+
+### MenuBar
+- Background: `#080816` opaque, no backdrop-filter
+- Border-bottom: `2px solid rgba(0,255,255,0.2)`
+- Text (logo + items + clock): `#00ffff`
+- Font: Press Start 2P, 8px
+
+### Window
+- Background: `#0d0d1a`, no backdrop-filter
+- Titlebar: `#111122` background
+- Border: `2px solid #333`
+- Focused border: `2px solid rgba(0,255,255,0.4)`
+- Shadow: `4px 4px 0 #000`
+- Border-radius: `0`
+- Title text: `#00ffff`, Press Start 2P 9px
+- Traffic lights: keep as colored squares (not circles — `border-radius: 0`)
+
+### Dock
+- Background: `#0d0d1a`, no backdrop-filter
+- Border: `2px solid #333`, `box-shadow: 3px 3px 0 #000`
+- Border-radius: `0`
+- Icon containers: `border-radius: 0`, `border: 2px solid #000`
+- Open indicator dot: `#00ffff`
+- Hover: `transition: transform 0.1s steps(2)`
+
+### DesktopIcon
+- Icon container: `border-radius: 0`
+- Label color: `#00ffff` (was white)
+- Hover background: `rgba(0,255,255,0.08)`
+
+### ContextMenu
+- Background: `#0d0d1a`, no backdrop-filter
+- Border: `2px solid #333`, `box-shadow: 3px 3px 0 #000`
+- Border-radius: `0`
+- Hover: `#00ffff` background, `#000` text
+- Font: Press Start 2P 9px
+
+### BootScreen
+- Keep existing structure (black bg, Apple logo, progress bar)
+- Progress bar: `#00ffff` fill (was white)
+- Font (if any text added): Press Start 2P
+
+### Terminal
+- Prompt color: `#00ffff` (already `#64d2ff`, update to `#00ffff`)
+- Keep Fira Code font
+
+## Wallpaper
+
+Replace smooth radial gradient wallpapers with 3 CSS pixel-style variants:
+1. **Dot grid** — dark base `#050510` with a subtle repeating dot pattern
+2. **Scanlines** — dark base with horizontal line texture
+3. **Solid dark** — flat `#050510` (clean, minimal)
+
+## Animations
+
+- Window open/close: change framer-motion `ease: 'easeOut'` → `ease: [1,0,1,0]` (step-like) or keep easeOut (subtle)
+- Dock hover: `transition: transform 0.1s steps(2)`
+- Boot progress: keep existing linear fill
+
+## Files Changed
+
+| File | Change |
+|---|---|
+| `index.html` | Swap Google Fonts: remove Outfit, add Press Start 2P |
+| `src/App.css` | Update all CSS variables, remove font-smoothing, add pixel rendering |
+| `src/components/MenuBar/MenuBar.css` | Opaque bg, cyan text, no backdrop-filter |
+| `src/components/Window/Window.css` | Sharp corners, opaque bg, hard shadow, pixel titlebar |
+| `src/components/Dock/Dock.css` | Sharp corners, opaque bg, hard shadow, steps() hover |
+| `src/components/DesktopIcon/DesktopIcon.css` | Sharp corners, cyan label |
+| `src/components/ContextMenu/ContextMenu.css` | Sharp corners, opaque bg, cyan hover |
+| `src/components/BootScreen/BootScreen.css` | Cyan progress bar |
+| `src/apps/Terminal.tsx` | Update prompt color to `#00ffff` |
+| `src/config/apps.ts` | Update WALLPAPERS to pixel-style CSS patterns |
+
+## Out of Scope
+
+- No sprite/image assets (emoji icons stay as-is for now)
+- No new functionality
+- No changes to WindowContext, types, or component logic

index.html

@@ -2,12 +2,14 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+    <link rel="icon" type="image/svg+xml" href="/favicon.svg?v=1.0.0" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="version" content="1.0.0" />
+    <meta http-equiv="Cache-Control" content="no-cache, must-revalidate" />
     <title>MingdaOS</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=Outfit:wght@300;400;500;600&family=Fira+Code:wght@400;500&display=swap" rel="stylesheet">
+    <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Fira+Code:wght@400;500&display=swap" rel="stylesheet">
   </head>
   <body>
     <div id="root"></div>

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mingda-os",
   "private": true,
-  "version": "0.0.0",
+  "version": "1.0.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

public/pgp.asc

@@ -0,0 +1,26 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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+=opD7
+-----END PGP PUBLIC KEY BLOCK-----

src/App.css

@@ -1,7 +1,7 @@
 *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
 
 :root {
-  --font-ui: 'Outfit', system-ui, sans-serif;
+  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
   --font-mono: 'Fira Code', 'Courier New', monospace;
 
   --accent-red: #ff453a;
@@ -9,18 +9,23 @@
   --accent-green: #30d158;
   --accent-blue: #0a84ff;
   --accent-purple: #bf5af2;
-  --accent-teal: #64d2ff;
+  --accent-teal: #00ffff;
+  --accent-cyan: #00ffff;
 
-  --glass-bg: rgba(30, 30, 40, 0.55);
+  --glass-bg: #0d0d1a;
-  --glass-border: rgba(255, 255, 255, 0.08);
+  --glass-border: #333333;
-  --glass-blur: blur(24px) saturate(1.4);
+  --glass-blur: none;
-  --glass-shadow: 0 8px 40px rgba(0, 0, 0, 0.35);
+  --glass-shadow: 4px 4px 0 #000000;
-  --radius-window: 12px;
+  --radius-window: 0px;
-  --radius-icon: 14px;
+  --radius-icon: 0px;
 
   --menubar-height: 28px;
   --dock-height: 72px;
   --titlebar-height: 36px;
+
+  --pixel-border: 2px solid #333333;
+  --pixel-shadow: 4px 4px 0 #000000;
+  --pixel-cyan: #00ffff;
 }
 
 html, body, #root {
@@ -28,5 +33,47 @@ html, body, #root {
   height: 100%;
   overflow: hidden;
   font-family: var(--font-ui);
-  -webkit-font-smoothing: antialiased;
+  -webkit-font-smoothing: none;
+  font-smooth: never;
+  image-rendering: pixelated;
+}
+
+/* CRT scanlines + faint phosphor glow over the entire desktop */
+#root::after {
+  content: '';
+  position: fixed;
+  inset: 0;
+  pointer-events: none;
+  z-index: 9998;
+  background:
+    repeating-linear-gradient(
+      0deg,
+      rgba(0, 255, 255, 0.025) 0px,
+      rgba(0, 255, 255, 0.025) 1px,
+      transparent 1px,
+      transparent 3px
+    );
+  mix-blend-mode: screen;
+  animation: crt-flicker 4.2s steps(60) infinite;
+}
+
+@keyframes crt-flicker {
+  0%, 100% { opacity: 0.85; }
+  47%      { opacity: 0.92; }
+  50%      { opacity: 0.6; }
+  53%      { opacity: 0.9; }
+}
+
+@keyframes blink-caret {
+  0%, 49%   { opacity: 1; }
+  50%, 100% { opacity: 0; }
+}
+
+.cypher-caret {
+  display: inline-block;
+  width: 0.55em;
+  margin-left: 2px;
+  background: var(--pixel-cyan);
+  color: transparent;
+  animation: blink-caret 1s steps(1) infinite;
 }

src/apps/AboutMe.tsx

@@ -1,36 +1,179 @@
+import { APP_VERSION } from '../config/version';
+
 export default function AboutMe() {
   return (
-    <div style={{ padding: '24px', color: '#fff', fontFamily: 'var(--font-ui)' }}>
+    <div
-      <div style={{ display: 'flex', gap: 20, alignItems: 'flex-start', marginBottom: 20 }}>
+      style={{ padding: "24px", color: "#fff", fontFamily: "var(--font-ui)" }}
-        <div style={{
+    >
-          width: 72, height: 72, borderRadius: '50%',
+      <div
-          background: 'linear-gradient(135deg, #0a84ff, #bf5af2)',
+        style={{
-          display: 'flex', alignItems: 'center', justifyContent: 'center',
+          fontFamily: "var(--font-mono)",
-          fontSize: 36, flexShrink: 0
+          fontSize: 12,
-        }}>👤</div>
+          color: "var(--pixel-cyan)",
+          marginBottom: 16,
+          letterSpacing: 0.5,
+        }}
+      >
+        <span style={{ opacity: 0.5 }}>mingda@doitou-sv:~$ </span>
+        whoami<span className="cypher-caret">█</span>
+      </div>
+      <div
+        style={{
+          display: "flex",
+          gap: 20,
+          alignItems: "flex-start",
+          marginBottom: 20,
+        }}
+      >
+        <div
+          style={{
+            width: 72,
+            height: 72,
+            borderRadius: "50%",
+            background: "linear-gradient(135deg, #0a84ff, #bf5af2)",
+            display: "flex",
+            alignItems: "center",
+            justifyContent: "center",
+            fontSize: 36,
+            flexShrink: 0,
+          }}
+        >
+          👤
+        </div>
         <div>
-          <h2 style={{ fontSize: 20, fontWeight: 600, marginBottom: 4 }}>Mingda Xie <span style={{ color: 'rgba(255,255,255,0.4)', fontWeight: 400, fontSize: 14 }}>解明达</span></h2>
+          <h2 style={{ fontSize: 20, fontWeight: 600, marginBottom: 4 }}>
-          <p style={{ fontSize: 13, color: 'rgba(255,255,255,0.6)', lineHeight: 1.5 }}>Backend Developer · CS Master's @ Northeastern University</p>
+            Mingda Xie{" "}
-          <p style={{ fontSize: 13, color: 'rgba(255,255,255,0.5)' }}>Shenzhen-bound · Class of 2026</p>
+            <span
+              style={{
+                color: "rgba(255,255,255,0.4)",
+                fontWeight: 400,
+                fontSize: 14,
+              }}
+            >
+              解明达
+            </span>
+          </h2>
+          <p
+            style={{
+              fontSize: 13,
+              color: "rgba(255,255,255,0.6)",
+              lineHeight: 1.5,
+            }}
+          >
+            Backend Developer · CS Master's @ Northeastern University
+          </p>
         </div>
       </div>
-      <div style={{ display: 'flex', gap: 8, flexWrap: 'wrap', marginBottom: 20 }}>
+      <div
-        {['Java/Spring Cloud', 'Go', 'TypeScript/Bun', 'Redis', 'k3s', 'Microservices'].map(tag => (
+        style={{ display: "flex", gap: 8, flexWrap: "wrap", marginBottom: 20 }}
-          <span key={tag} style={{
+      >
-            padding: '3px 10px', borderRadius: 20,
+        {[
-            background: 'rgba(10, 132, 255, 0.15)',
+          "Java/Spring Cloud",
-            border: '1px solid rgba(10,132,255,0.3)',
+          "Go",
-            fontSize: 12, color: '#64d2ff'
+          "TypeScript/Bun",
-          }}>{tag}</span>
+          "Redis",
+          "k3s",
+          "Microservices",
+        ].map((tag) => (
+          <span
+            key={tag}
+            style={{
+              padding: "2px 8px",
+              borderRadius: 0,
+              background: "rgba(0,255,255,0.06)",
+              border: "1px solid rgba(0,255,255,0.25)",
+              fontSize: 11,
+              fontFamily: "var(--font-mono)",
+              color: "var(--pixel-cyan)",
+              letterSpacing: 0.3,
+            }}
+          >
+            [{tag}]
+          </span>
         ))}
       </div>
-      <p style={{ fontSize: 13, color: 'rgba(255,255,255,0.7)', lineHeight: 1.7, marginBottom: 16 }}>
+      <p
-        Backend engineer who runs a personal k3s cluster on Vultr, ships microservices, and builds things that occasionally work in production.
+        style={{
-        LeetCode 400+. Pixel art enjoyer. Stardew Valley veteran. Huge fan of 土屋アンナ.
+          fontSize: 13,
+          fontFamily: "var(--font-mono)",
+          color: "rgba(255,255,255,0.7)",
+          lineHeight: 1.7,
+          marginBottom: 16,
+        }}
+      >
+        <span style={{ color: "rgba(0,255,255,0.45)" }}>// </span>
+        Backend engineer. Distributed systems, infra, and the long tail of
+        things that go wrong at 3am. Trust the math, not the institution.
       </p>
-      <p style={{ fontSize: 12, color: 'rgba(255,255,255,0.3)', fontStyle: 'italic' }}>
+      {/* <p style={{ fontSize: 12, color: 'rgba(255,255,255,0.3)', fontStyle: 'italic' }}>
         "I am the dragon scroll, bitch." — Genuine mastery over shortcuts.
-      </p>
+      </p> */}
+      <div
+        style={{
+          marginTop: 8,
+          padding: "12px 14px",
+          background: "rgba(0,0,0,0.25)",
+          border: "1px solid rgba(255,255,255,0.08)",
+          borderRadius: 8,
+        }}
+      >
+        <div
+          style={{
+            display: "flex",
+            justifyContent: "space-between",
+            alignItems: "center",
+            marginBottom: 8,
+          }}
+        >
+          <span
+            style={{
+              fontSize: 11,
+              color: "rgba(255,255,255,0.4)",
+              letterSpacing: 0.5,
+              textTransform: "uppercase",
+            }}
+          >
+            Signed Identity
+          </span>
+          <a
+            href={`/pgp.asc?v=${APP_VERSION}`}
+            target="_blank"
+            rel="noopener noreferrer"
+            style={{
+              fontSize: 11,
+              color: "#64d2ff",
+              textDecoration: "none",
+            }}
+          >
+            pgp.asc ↗
+          </a>
+        </div>
+        <pre
+          style={{
+            margin: 0,
+            fontFamily: "var(--font-mono)",
+            fontSize: 11,
+            lineHeight: 1.5,
+            color: "rgba(255,255,255,0.65)",
+            whiteSpace: "pre-wrap",
+            wordBreak: "break-all",
+          }}
+        >{`-----BEGIN PGP SIGNED MESSAGE-----
+Hash: SHA512
+
+identity: Mingda Xie
+
+email:    xiemingda2020@gmail.com
+pgp:      8C50 AD5D CE0E 949E 39FA  F19D 609C 704E 544A 0BFD
+-----BEGIN PGP SIGNATURE-----
+
+iJEEARYKADkWIQSNntaQmSEMuam1aJhRySHSOW66vwUCafyKpRsUgAAAAAAEAA5t
+YW51MiwyLjUrMS4xMiwwLDMACgkQUckh0jluur8brQD/RzlXBuVuQnGioNsibNDm
+Rm85/5ed2BROS5gaH4FCBrQBALjMapIlyCYBNvIZNQX1eFCY/WNfZQXe3woeZYlP
+E/IF
+=k1lO
+-----END PGP SIGNATURE-----`}</pre>
+      </div>
     </div>
   );
 }

src/apps/Projects.tsx

@@ -1,7 +1,7 @@
 const PROJECTS = [
   { name: 'CampusNest', desc: 'Campus housing platform with Spring Cloud microservices, Redis caching, and k3s deployment.', tags: ['Java', 'Spring Cloud', 'Redis', 'k3s'], color: '#0a84ff' },
   { name: 'Alfred Bot', desc: 'Personal AI agent — task management, reminders, home automation bridge.', tags: ['Go', 'TypeScript', 'Bun'], color: '#bf5af2' },
-  { name: 'Warden / Bastion', desc: 'Self-hosted auth and proxy layer running on k3s with Let\'s Encrypt.', tags: ['Nginx', 'k3s', 'VLESS'], color: '#30d158' },
+  { name: 'go-local-rag-email', desc: 'Local-first Gmail assistant: semantic search and AI summaries via RAG, runs offline.', tags: ['Go', 'Qdrant', 'SQLite', 'RAG'], color: '#00ffff' },
   { name: 'Collab Platform', desc: 'Real-time collaborative workspace with WebSocket rooms and conflict resolution.', tags: ['TypeScript', 'Bun', 'WebSocket'], color: '#ffd60a' },
   { name: '成语填空', desc: 'Daily Chinese idiom guessing game — Wordle-style, runs at chengyu.m1ngdaxie.com.', tags: ['React', 'TypeScript'], color: '#ff453a' },
 ];

src/apps/Terminal.tsx

@@ -1,5 +1,5 @@
-import { useState, useRef, useEffect } from 'react';
 import type { KeyboardEvent } from 'react';
+import { useEffect, useRef, useState } from 'react';
 
 interface Line { type: 'input' | 'output'; text: string; key: number }
 
@@ -8,12 +8,34 @@ const COMMANDS: Record<string, string[]> = {
     'Available commands:',
     '  help       — show this list',
     '  about      — who is mingda',
+    '  whoami     — current identity',
     '  projects   — list projects',
     '  skills     — tech stack',
     '  contact    — contact info',
+    '  pgp        — public key fingerprint',
+    '  motd       — message of the day',
     '  neofetch   — system info',
     '  clear      — clear terminal',
   ],
+  whoami: [
+    'mingda',
+    'uid=1000  groups=(wheel,crypto,sudoers)',
+    'shell=/bin/zsh  tty=/dev/pts/0',
+  ],
+  pgp: [
+    'PGP fingerprint:',
+    '  8C50 AD5D CE0E 949E 39FA  F19D 609C 704E 544A 0BFD',
+    '',
+    'Public key: /pgp.asc',
+    'Verify before you trust.',
+  ],
+  motd: [
+    'cypherpunks write code.',
+    'privacy is necessary for an open society in the electronic age.',
+    'we cannot expect governments, corporations, or other large,',
+    'faceless organizations to grant us privacy out of their beneficence.',
+    '                                            — eric hughes, 1993',
+  ],
   about: [
     'Mingda Xie (解明达)',
     'Backend Developer · CS Master\'s @ Northeastern University',
@@ -28,7 +50,7 @@ const COMMANDS: Record<string, string[]> = {
     'Projects:',
     '  CampusNest     — Spring Cloud housing platform',
     '  Alfred Bot     — Self-hosted AI agent',
-    '  Warden/Bastion — k3s auth + proxy layer',
+    '  rag-email      — Local-first Gmail RAG assistant (Go + Qdrant)',
     '  Collab Platform— Real-time collaborative workspace',
     '  成语填空         — Daily Chinese idiom game',
   ],
@@ -55,7 +77,7 @@ const COMMANDS: Record<string, string[]> = {
     '    .::!!!::.      Kernel: Ubuntu 24.04',
     '   .:::!!!:::.     RAM: 4GB',
     '  .::::!!!::::.    Shell: zsh',
-    ' .:::::!!!:::::.   Services: Alfred, Chengyu, k3s, VLESS',
+    ' .:::::!!!:::::.   Services: Alfred, Chengyu, k3s',
     '',
     '  nginx + k3s + let\'s encrypt',
   ],
@@ -68,8 +90,9 @@ function nextKey() { return ++lineCounter; }
 
 export default function Terminal() {
   const [lines, setLines] = useState<Line[]>([
-    { type: 'output', text: 'MingdaOS Terminal v1.0', key: nextKey() },
+    { type: 'output', text: 'MingdaOS Terminal v1.0  [secure tty]', key: nextKey() },
-    { type: 'output', text: 'Type "help" to see available commands.', key: nextKey() },
+    { type: 'output', text: 'kernel: linux 6.x | tls: 1.3 | pgp: 8C50AD5D...0BFD', key: nextKey() },
+    { type: 'output', text: 'cypherpunks write code. type "help" for commands.', key: nextKey() },
     { type: 'output', text: '', key: nextKey() },
   ]);
   const [input, setInput] = useState('');
@@ -144,7 +167,7 @@ export default function Terminal() {
       <div style={{ flex: 1, overflowY: 'auto' }}>
         {lines.map((line) => (
           <div key={line.key} style={{
-            color: line.type === 'input' ? '#64d2ff' : '#e2e8f0',
+            color: line.type === 'input' ? '#00ffff' : '#e2e8f0',
             whiteSpace: 'pre',
             lineHeight: 1.6,
           }}>
@@ -154,7 +177,7 @@ export default function Terminal() {
         <div ref={bottomRef} />
       </div>
       <div style={{ display: 'flex', alignItems: 'center', marginTop: 4 }}>
-        <span style={{ color: '#64d2ff', whiteSpace: 'nowrap' }}>{PROMPT}</span>
+        <span style={{ color: '#00ffff', whiteSpace: 'nowrap' }}>{PROMPT}</span>
         <input
           ref={inputRef}
           value={input}
@@ -168,7 +191,7 @@ export default function Terminal() {
             color: '#e2e8f0',
             fontFamily: 'var(--font-mono)',
             fontSize: 13,
-            caretColor: '#64d2ff',
+            caretColor: '#00ffff',
           }}
           spellCheck={false}
           autoComplete="off"

src/components/BootScreen/BootScreen.css

@@ -19,20 +19,21 @@
 .boot-apple {
   width: 80px;
   height: 80px;
-  fill: #fff;
+  fill: #00ffff;
+  image-rendering: pixelated;
 }
 
 .boot-progress-track {
   width: 200px;
-  height: 3px;
+  height: 4px;
-  background: rgba(255,255,255,0.15);
+  background: rgba(0, 255, 255, 0.15);
-  border-radius: 2px;
+  border: 1px solid rgba(0, 255, 255, 0.3);
   overflow: hidden;
 }
 
 .boot-progress-bar {
   height: 100%;
-  background: #fff;
+  background: #00ffff;
-  border-radius: 2px;
   transition: width 0.05s linear;
+  box-shadow: 0 0 8px #00ffff;
 }

src/components/ContextMenu/ContextMenu.css

@@ -1,11 +1,9 @@
 .context-menu {
   position: fixed;
-  background: rgba(40, 40, 52, 0.82);
+  background: #0d0d1a;
-  backdrop-filter: var(--glass-blur);
+  border: 2px solid #333333;
-  -webkit-backdrop-filter: var(--glass-blur);
+  border-radius: 0;
-  border: 1px solid var(--glass-border);
+  box-shadow: 3px 3px 0 #000000;
-  border-radius: 8px;
-  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
   padding: 4px;
   min-width: 200px;
   z-index: 9000;
@@ -15,19 +13,21 @@
   display: flex;
   align-items: center;
   gap: 8px;
-  padding: 6px 10px;
+  padding: 8px 10px;
-  border-radius: 5px;
+  border-radius: 0;
-  font-size: 13px;
+  font-size: 8px;
   color: rgba(255, 255, 255, 0.9);
   cursor: default;
+  letter-spacing: 0.5px;
 }
 
 .context-menu-item:hover {
-  background: var(--accent-blue);
+  background: var(--pixel-cyan);
+  color: #000;
 }
 
 .context-menu-separator {
-  height: 1px;
+  height: 2px;
-  background: var(--glass-border);
+  background: #333333;
   margin: 3px 6px;
 }

src/components/Desktop/Desktop.css

@@ -1,7 +1,8 @@
 .desktop {
   position: fixed;
   inset: 0;
-  background-size: cover;
+  background-size: 24px 24px, 12px 12px, cover;
+  background-position: center;
   overflow: hidden;
 }
 

src/components/Desktop/Desktop.tsx

@@ -31,7 +31,10 @@ export default function Desktop() {
   return (
     <div
       className="desktop"
-      style={{ background: WALLPAPERS[state.wallpaper] }}
+      style={{
+        background: WALLPAPERS[state.wallpaper],
+        backgroundSize: WALLPAPERS[state.wallpaper].startsWith('url(') ? 'cover' : undefined,
+      }}
       onContextMenu={handleContextMenu}
       onClick={() => setCtxMenu(null)}
     >
@@ -47,12 +50,19 @@ export default function Desktop() {
               gridRow: app.desktopPosition.row + 1,
             }}
           >
-            <DesktopIcon app={app} onOpen={() => openWindow(app.id)} />
+            <DesktopIcon
+              app={app}
+              onOpen={() =>
+                app.externalUrl
+                  ? window.open(app.externalUrl, '_blank', 'noopener,noreferrer')
+                  : openWindow(app.id)
+              }
+            />
           </div>
         ))}
       </div>
 
-      {APPS.map(app => (
+      {APPS.filter(app => !app.externalUrl).map(app => (
         <Window key={app.id} app={app} />
       ))}
 

src/components/DesktopIcon/DesktopIcon.css

@@ -6,32 +6,34 @@
   cursor: default;
   width: 72px;
   padding: 6px;
-  border-radius: 8px;
+  border-radius: 0;
   transition: background 0.1s;
 }
 
 .desktop-icon:hover {
-  background: rgba(255,255,255,0.08);
+  background: rgba(0, 255, 255, 0.08);
 }
 
 .desktop-icon-img {
   width: 56px;
   height: 56px;
-  border-radius: var(--radius-icon);
+  border-radius: 0;
+  border: 2px solid #000;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 28px;
-  box-shadow: 0 2px 12px rgba(0,0,0,0.3);
+  box-shadow: 3px 3px 0 #000;
 }
 
 .desktop-icon-label {
-  font-size: 11px;
+  font-size: 8px;
-  color: #fff;
+  color: var(--pixel-cyan);
   text-align: center;
-  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
+  text-shadow: 1px 1px 0 #000;
   max-width: 72px;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
+  letter-spacing: 0.5px;
 }

src/components/DesktopIcon/DesktopIcon.tsx

@@ -10,7 +10,9 @@ export default function DesktopIcon({ app, onOpen }: Props) {
   return (
     <div className="desktop-icon" onDoubleClick={onOpen}>
       <div className="desktop-icon-img" style={{ background: app.iconGradient }}>
-        <span>{app.emoji}</span>
+        {app.iconImage
+          ? <img src={app.iconImage} alt={app.title} style={{ width: '70%', height: '70%', objectFit: 'contain' }} />
+          : <span>{app.emoji}</span>}
       </div>
       <span className="desktop-icon-label">{app.title}</span>
     </div>

src/components/Dock/Dock.css

@@ -10,13 +10,11 @@
   display: flex;
   align-items: flex-end;
   gap: 6px;
-  background: rgba(30, 30, 40, 0.52);
+  background: #0d0d1a;
-  backdrop-filter: var(--glass-blur);
+  border: 2px solid #333333;
-  -webkit-backdrop-filter: var(--glass-blur);
+  border-radius: 0;
-  border: 1px solid var(--glass-border);
-  border-radius: 18px;
   padding: 8px 12px;
-  box-shadow: 0 4px 28px rgba(0,0,0,0.4);
+  box-shadow: 3px 3px 0 #000000;
 }
 
 .dock-item {
@@ -35,18 +33,19 @@
 .dock-icon {
   width: 48px;
   height: 48px;
-  border-radius: 12px;
+  border-radius: 0;
+  border: 2px solid #000;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 24px;
-  transition: transform 0.15s ease;
+  transition: transform 0.1s steps(2);
-  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
+  box-shadow: 2px 2px 0 #000;
 }
 
 .dock-dot {
   width: 4px;
   height: 4px;
-  border-radius: 50%;
+  border-radius: 0;
-  background: rgba(255,255,255,0.7);
+  background: var(--pixel-cyan);
 }

src/components/MenuBar/MenuBar.css

@@ -4,10 +4,8 @@
   left: 0;
   right: 0;
   height: var(--menubar-height);
-  background: rgba(20, 20, 28, 0.72);
+  background: #080816;
-  backdrop-filter: var(--glass-blur);
+  border-bottom: 2px solid rgba(0, 255, 255, 0.2);
-  -webkit-backdrop-filter: var(--glass-blur);
-  border-bottom: 1px solid var(--glass-border);
   display: flex;
   align-items: center;
   justify-content: space-between;
@@ -26,19 +24,20 @@
   font-size: 14px;
   margin-right: 8px;
   cursor: default;
+  color: var(--pixel-cyan);
 }
 
 .menubar-item {
-  font-size: 12px;
+  font-size: 8px;
-  font-weight: 500;
+  font-weight: 400;
-  color: rgba(255,255,255,0.85);
+  color: var(--pixel-cyan);
   padding: 2px 8px;
-  border-radius: 4px;
   cursor: default;
+  letter-spacing: 0.5px;
 }
 
 .menubar-item:hover {
-  background: rgba(255,255,255,0.1);
+  background: rgba(0, 255, 255, 0.15);
 }
 
 .menubar-right {
@@ -47,7 +46,7 @@
 }
 
 .menubar-clock {
-  font-size: 12px;
+  font-size: 8px;
-  font-weight: 500;
+  color: var(--pixel-cyan);
-  color: rgba(255,255,255,0.85);
+  letter-spacing: 0.5px;
 }

src/components/MenuBar/MenuBar.tsx

@@ -1,31 +1,53 @@
 import { useEffect, useState } from 'react';
 import './MenuBar.css';
+import { APP_VERSION } from '../../config/version';
 
-const MENU_ITEMS = ['File', 'Edit', 'View', 'Go', 'Help'];
+const MENU_ITEMS = ['encrypt', 'sign', 'verify', 'wipe', 'about'];
+const BOOT_AT = Date.now();
 
 export default function MenuBar() {
   const [time, setTime] = useState(() => formatTime(new Date()));
+  const [uptime, setUptime] = useState(() => formatUptime(0));
 
   useEffect(() => {
-    const id = setInterval(() => setTime(formatTime(new Date())), 1000);
+    const id = setInterval(() => {
+      setTime(formatTime(new Date()));
+      setUptime(formatUptime(Date.now() - BOOT_AT));
+    }, 1000);
     return () => clearInterval(id);
   }, []);
 
   return (
     <div className="menubar">
       <div className="menubar-left">
-        <span className="menubar-logo">&#63743;</span>
+        <span className="menubar-logo">[ MingdaOS v{APP_VERSION} ]</span>
         {MENU_ITEMS.map(item => (
           <span key={item} className="menubar-item">{item}</span>
         ))}
       </div>
       <div className="menubar-right">
-        <span className="menubar-clock">{time}</span>
+        <span className="menubar-clock" style={{ opacity: 0.55, marginRight: 12 }}>
+          up {uptime}
+        </span>
+        <span className="menubar-clock">
+          {time}<span className="cypher-caret">█</span>
+        </span>
       </div>
     </div>
   );
 }
 
 function formatTime(d: Date) {
-  return d.toLocaleTimeString('en-US', { hour: 'numeric', minute: '2-digit', hour12: true });
+  const hh = String(d.getUTCHours()).padStart(2, '0');
+  const mm = String(d.getUTCMinutes()).padStart(2, '0');
+  const ss = String(d.getUTCSeconds()).padStart(2, '0');
+  return `${hh}:${mm}:${ss} UTC`;
+}
+
+function formatUptime(ms: number) {
+  const s = Math.floor(ms / 1000);
+  const h = Math.floor(s / 3600);
+  const m = Math.floor((s % 3600) / 60);
+  const sec = s % 60;
+  return `${String(h).padStart(2, '0')}h${String(m).padStart(2, '0')}m${String(sec).padStart(2, '0')}s`;
 }

src/components/Window/Window.css

@@ -1,27 +1,30 @@
 .window {
-  background: var(--glass-bg);
+  background: #0d0d1a;
-  backdrop-filter: var(--glass-blur);
+  border: 2px solid #333333;
-  -webkit-backdrop-filter: var(--glass-blur);
+  border-radius: 0;
-  border: 1px solid var(--glass-border);
+  box-shadow: var(--pixel-shadow);
-  border-radius: var(--radius-window);
-  box-shadow: var(--glass-shadow);
   display: flex;
   flex-direction: column;
   overflow: hidden;
   transition: opacity 0.15s;
 }
 
+.window--focused {
+  border-color: rgba(0, 255, 255, 0.4);
+}
+
 .window--unfocused {
   opacity: 0.72;
 }
 
 .window-titlebar {
   height: var(--titlebar-height);
+  background: #111122;
   display: flex;
   align-items: center;
   padding: 0 12px;
   cursor: move;
-  border-bottom: 1px solid var(--glass-border);
+  border-bottom: 2px solid #333333;
   flex-shrink: 0;
   gap: 8px;
   position: relative;
@@ -36,15 +39,15 @@
 .traffic-light {
   width: 12px;
   height: 12px;
-  border-radius: 50%;
+  border-radius: 0;
-  border: none;
+  border: 1px solid rgba(0,0,0,0.5);
   cursor: pointer;
   position: relative;
   transition: filter 0.1s;
 }
 
 .window--unfocused .traffic-light {
-  background: #666 !important;
+  background: #444 !important;
 }
 
 .traffic-light--close { background: var(--accent-red); }
@@ -63,20 +66,22 @@
   justify-content: center;
   font-size: 8px;
   font-weight: 700;
-  color: rgba(0,0,0,0.6);
+  color: rgba(0,0,0,0.7);
   line-height: 1;
 }
 
 .window-title {
   flex: 1;
   text-align: center;
-  font-size: 13px;
+  font-size: 9px;
-  font-weight: 500;
+  font-weight: 400;
-  color: rgba(255,255,255,0.85);
+  color: var(--pixel-cyan);
   pointer-events: none;
   position: absolute;
   left: 50%;
   transform: translateX(-50%);
+  letter-spacing: 1px;
+  white-space: nowrap;
 }
 
 .window-content {

src/config/apps.ts

@@ -7,6 +7,7 @@ import Alfred from '../apps/Alfred';
 import Chengyu from '../apps/Chengyu';
 import Poker from '../apps/Poker';
 import Trash from '../apps/Trash';
+import { withVersion } from './version';
 
 export const APPS: AppConfig[] = [
   {
@@ -89,10 +90,36 @@ export const APPS: AppConfig[] = [
     component: Trash,
     desktopPosition: { col: 1, row: 3 },
   },
+  {
+    id: 'collab',
+    title: 'Collab',
+    emoji: '',
+    iconGradient: 'linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02))',
+    iconImage: withVersion('/docnest-icon-32.png'),
+    defaultSize: { width: 400, height: 360 },
+    defaultPosition: { x: 0, y: 0 },
+    component: Links,
+    desktopPosition: { col: 0, row: 4 },
+    externalUrl: 'https://collab.m1ngdaxie.com/',
+  },
 ];
 
 export const WALLPAPERS = [
-  'radial-gradient(ellipse at 20% 50%, #1a0533 0%, transparent 60%), radial-gradient(ellipse at 80% 20%, #0d1f3c 0%, transparent 55%), radial-gradient(ellipse at 60% 80%, #0a1a0a 0%, transparent 50%), radial-gradient(ellipse at 40% 40%, #2d0a3e 0%, transparent 45%), linear-gradient(135deg, #0a0a12 0%, #12061e 50%, #060d1a 100%)',
+  // Dot grid — dark with subtle cyan dot pattern
-  'radial-gradient(ellipse at 30% 60%, #1a0a00 0%, transparent 60%), radial-gradient(ellipse at 70% 30%, #001a2e 0%, transparent 55%), radial-gradient(ellipse at 50% 80%, #0d0020 0%, transparent 50%), linear-gradient(135deg, #080808 0%, #1a0d00 50%, #000d1a 100%)',
+  `radial-gradient(circle, rgba(0,255,255,0.07) 1px, transparent 1px),
-  'radial-gradient(ellipse at 50% 50%, #001a1a 0%, transparent 70%), radial-gradient(ellipse at 20% 80%, #1a001a 0%, transparent 55%), linear-gradient(135deg, #060a0a 0%, #0a0620 100%)',
+   radial-gradient(circle, rgba(0,255,255,0.04) 1px, transparent 1px),
+   linear-gradient(135deg, #050510 0%, #080818 100%)`,
+  // Scanlines — horizontal line texture
+  `repeating-linear-gradient(
+     0deg,
+     transparent,
+     transparent 2px,
+     rgba(0,255,255,0.03) 2px,
+     rgba(0,255,255,0.03) 4px
+   ),
+   linear-gradient(135deg, #050510 0%, #06060f 100%)`,
+  // Solid dark — flat and minimal
+  `linear-gradient(135deg, #050510 0%, #080818 100%)`,
+  // Pixel city — neon cityscape
+  `url(${withVersion('/wallpaper-city.png')})`,
 ];

src/config/version.ts

@@ -0,0 +1,5 @@
+export const APP_VERSION = '1.0.0';
+
+export function withVersion(url: string): string {
+  return url.includes('?') ? `${url}&v=${APP_VERSION}` : `${url}?v=${APP_VERSION}`;
+}

src/types/index.ts

@@ -21,6 +21,8 @@ export interface AppConfig {
   defaultPosition: { x: number; y: number };
   component: ComponentType;
   desktopPosition: { col: number; row: number };
+  externalUrl?: string;
+  iconImage?: string;
 }
 
 export interface OSState {