Hacker NewsI built it because I was running 8-10 Claude Code / Codex shells in parallel and tabbed terminal apps kept losing my place. I wanted to see every shell at once and drag them around like Post-its. And have my browsers and notes in there too.
Implementation choices that might be interesting:
• AppKit, not SwiftUI. I needed manual frame control during drag/zoom to avoid AppKit's display-cycle re-entrancy guard, and got it more reliably out of straight NSView land.
• SwiftTerm (Miguel de Icaza's emulator) for VT100 + real PTYs (fork + openpty). One `LocalProcessTerminalView` per tab. OSC 7 → cwd → tab title.
• `NSScrollView.magnification` for canvas zoom. Cmd+wheel events are coalesced to one mag-update per display frame and the resync broadcast is hopped to the next runloop tick. Earlier versions used to SIGTRAP inside `_postWindowNeedsLayoutUnlessPostingDisabled` because the broadcast was re-entering AppKit's layout pass under aggressive zooming.
• Intentionally human-grep-able. No SQLite, no proprietary format.
• NSPasteboard drag-and-drop. Finder→canvas drops a folder and spawns a new stack with that folder as cwd. File-panel→terminal drag inserts the absolute path at the cursor.
•`NSTextStorageDelegate.processEditing` for syntax highlighting in the editor panels. 22 languages, extension auto-detect, plus a Sublime-style status-bar language picker.
* macOS only.
Install:
brew install --cask vbario/staxide/staxide
Built solo, used daily, lots of rough edges. Bug reports and corrections both welcome.
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