Update docs/ARCHITECTURE.md and docs/ROADMAP.md for ghostty-web migration
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# Roadmap: Migration to xterm.js 6.0 with Bun
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# Roadmap: Migration to ghostty-web
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This document outlines the plan for bundling xterm.js 6.0 directly, replacing the dependency on textual-serve's bundled `textual.js`.
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This document outlines the plan for bundling ghostty-web directly, replacing the dependency on textual-serve's bundled `textual.js`.
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## Status: ✅ Complete
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@@ -11,37 +11,41 @@ The migration has been implemented on the `upstream-xterm` branch.
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- [x] **Phase 1: Tooling Setup** - Added `package.json`, `bunfig.toml`, Makefile targets
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- [x] **Phase 2: Terminal Client** - Created `terminal.ts` with full WebSocket protocol
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- [x] **Phase 3: Server Integration** - Updated HTML template, removed monkey-patch
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- [x] **Phase 4: Configuration** - Added `data-scrollback` attribute support
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- [x] **Phase 4: Configuration** - Added CLI options for theme, font-family, font-size
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- [x] **Phase 5: Remove Dependency** - Dropped `textual-serve` from pyproject.toml
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- [x] **Phase 6: Documentation** - Updated README.md and ARCHITECTURE.md
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- [x] **Phase 7: Mobile Support** - Added hidden textarea for iOS Safari keyboard
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### Key Outcomes
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| Metric | Before | After |
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|--------|--------|-------|
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| Metric | Before (xterm.js) | After (ghostty-web) |
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|--------|-------------------|---------------------|
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| textual-serve dependency | Required | ❌ Removed |
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| Terminal engine | xterm.js 6.0 | ghostty-web (Ghostty VT parser via WASM) |
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| Scrollback history | 0 (none) | 1000 (configurable) |
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| Font configuration | Monkey-patch workaround | Direct configuration |
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| Bundle size | 502 KB + 381 KB fonts | 560 KB total |
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| xterm.js version | Unknown (5.x?) | 6.0.0 |
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| Theme configuration | None | 9 built-in themes via `--theme` |
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| Font configuration | Monkey-patch workaround | `--font-family` and `--font-size` CLI options |
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| Mobile Safari | No keyboard | ✅ Hidden textarea for keyboard input |
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| Bundle size | 560 KB | 1.14 MB (includes WASM parser) |
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### Files Changed
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```
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Added:
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package.json # xterm.js 6.0 + addons
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bunfig.toml # Bun configuration
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src/.../static/js/terminal.ts # TypeScript source
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src/.../static/js/terminal.js # Pre-built bundle (committed)
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src/.../static/css/xterm.css # xterm.js styles
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package.json # ghostty-web + TypeScript
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bunfig.toml # Bun configuration
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src/.../static/js/terminal.ts # TypeScript source
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src/.../static/js/terminal.js # Pre-built bundle (committed)
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src/.../static/js/ghostty-vt.wasm # Ghostty VT100 parser
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Modified:
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pyproject.toml # Removed textual-serve dependency
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Makefile # Added bundle/bundle-watch targets
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Makefile # Added bundle/bundle-watch/bump-patch targets
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.gitignore # Added node_modules/
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src/.../local_server.py # Simplified HTML template
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src/.../cli.py # Added --theme, --font-family, --font-size
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src/.../local_server.py # Pass theme/font config to HTML template
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docs/ARCHITECTURE.md # Updated file structure
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README.md # Added frontend dev instructions
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README.md # Added frontend dev instructions, new CLI options
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```
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### For Users
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@@ -67,6 +71,9 @@ make bundle
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# Or watch for changes during development
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make bundle-watch
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# Bump patch version
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make bump-patch
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```
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---
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@@ -75,41 +82,25 @@ make bundle-watch
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The sections below document the original analysis that led to this migration.
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### What textual-serve Provides
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### What textual-serve Provided
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| Asset | Size | What We Use | Required? |
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|-------|------|-------------|-----------|
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| Asset | Size | What We Used | Required? |
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|-------|------|--------------|-----------|
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| `static/js/textual.js` | 502 KB | xterm.js + WebSocket client | **Yes** |
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| `static/css/xterm.css` | 4.6 KB | Terminal styling | **Yes** |
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| `static/fonts/RobotoMono*.ttf` | 381 KB | Roboto Mono font | No (we override font) |
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| `static/images/background.png` | 58 KB | Background image | No |
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| **Total** | **948 KB** | | |
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### What textual.js Bundle Contains
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### Why We Switched to ghostty-web
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The minified `textual.js` bundles:
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```
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xterm.js (core terminal)
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├── @xterm/addon-fit (auto-resize to container)
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├── @xterm/addon-webgl (GPU-accelerated rendering)
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├── @xterm/addon-canvas (fallback 2D canvas renderer)
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├── @xterm/addon-unicode11 (wide character support)
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├── @xterm/addon-web-links (clickable URLs)
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├── @xterm/addon-clipboard (clipboard integration)
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└── WebSocket client wrapper (class w)
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```
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### Hardcoded Configuration in textual.js
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```javascript
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new Terminal({
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allowProposedApi: true,
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fontSize: /* from data-font-size attribute */,
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scrollback: 0, // ❌ No scrollback history
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fontFamily: "'Roboto Mono', Monaco, 'Courier New', monospace" // ❌ Hardcoded
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})
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```
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| Benefit | Impact |
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|---------|--------|
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| **Production-tested VT100 parser** | Ghostty's parser handles edge cases correctly |
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| **xterm.js API compatibility** | Easy migration, familiar API |
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| **Full configuration control** | Theme, font, scrollback via CLI |
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| **Mobile Safari support** | Hidden textarea triggers keyboard |
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| **Modern features** | RGB colors, better cursor handling |
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### WebSocket Protocol (Fully Compatible)
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