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The tree did its filesystem work inside the paint. `ensure_loaded` ran a `read_dir` plus a `.gitignore` chain compile for every root and every expanded directory that wasn't cached, and a non-empty search box replaced that with a breadth-first walk of up to 2000 directories — re-run on every keystroke, because the search input notifies per `InputEvent::Change`. On a cold cache or a large repo that is a visibly stalled frame. Render now only reads caches. A miss becomes a queued load that runs on the background executor and lands with a `cx.notify()`, so a just-expanded directory fills in on the next frame rather than blocking this one — the same trade every editor makes. - `TreeLoader` owns the filesystem half, including its own `.gitignore` matchers (`Arc`, not `Rc`, so they can cross threads). It is seeded from the UI thread's compiled matchers and hands back the ones it compiled, so the cache still warms. The ignore semantics are unchanged: deepest match wins, `!` whitelists un-ignore, `.git` is always ignored. - `Loads` tracks what is in flight and what a watcher event superseded while it flew, so a repaint can't spawn a second load for the same directory and a listing that predates a change can't install itself. - The search is debounced 200ms, walks on the background executor, and carries a generation so a slow walk can't overwrite a newer query's answer. Previous hits stay on screen while the next walk flies rather than blanking per keystroke. - `file_tree_refresh_roots` returns early when the root set is unchanged. It is called from render whenever the roots are empty, and it clears the caches and notifies — so a tab that can produce no roots spun the render loop. Watcher events deliberately do *not* restart an open search. Doing so starves it: the watcher's own debounce delivers a batch about as often as the search debounce waits, so under sustained churn (a build writing into `target/`, which the watcher reports because it knows nothing about gitignore) every walk bowed out before reading a single directory and the list stayed empty. A snapshot that is stale until the next keystroke is the better failure.
tty7
A terminal workbench: shells, sessions, SSH, coding agents.
Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty
English · 简体中文
Why
- Fast — ~2× the throughput of Alacritty, Ghostty, or Kitty (benchmarks)
- Sessions persist — quit or reboot; your shells keep running, no tmux
- Editor-grade input — completion, syntax highlighting, history search built in; zero config for zsh, bash, fish, PowerShell
- Agent-aware — recognizes Claude Code & co. in a pane: status, notifications, session resume
Install
Native builds for each platform on Releases:
| macOS | …-macos-arm64.dmg · …-x86_64.dmg |
drag into Applications |
| Windows | …-setup.exe · portable ….zip |
|
| Linux | …-x86_64.AppImage |
chmod +x and run — x11/wayland libs bundled |
What's inside
| Input | ghost suggestions from history · explained tab completion · syntax highlighting · multi-line editing · click places the caret · ⌃ R fuzzy history |
| Window | tabs & splits · ⌘ P palette · ⌘ F scrollback search · eight themes · IME |
| Coding agents | per-pane agent detection (~17 CLIs): status dot, notifications, branch + diff, resume after reboot, tray icon that signals "needs your input" |
| SSH | native russh stack: profiles with keychain secrets, SFTP panel, port forwarding, jump hosts |
Details for every row: docs/features.md. Keybindings: ⌘ , opens Settings — browse and remap everything, tmux preset included (full list).
Benchmarks
Same machine, same day, same 155×40 grid — Apple M1 Pro, macOS 26.3.1, five-run averages (2026-07-04):
| tty7 | Alacritty | Ghostty | Kitty | |
|---|---|---|---|---|
Plaintext IO — 11 MB cat (lower = better) |
95 ms | 239 ms | 179 ms | 185 ms |
| DOOM-fire frame rate (higher = better) | 888 fps | 485 fps | 552 fps | 617 fps |
| Cold-launch memory | 116 MB¹ | 105 MB | 128 MB | 130 MB |
¹ GUI 105 MB + the persistent daemon 11 MB.
Methodology and one-command reproduction: scripts/bench/.
Built on gpui and alacritty_terminal · Apache-2.0 · Discord · Changelog