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l0ng-ai
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Findings from a correctness review of the new daemon-owned tree, applied together: - A dead pane can no longer be resurrected in the tree by its own last output. On Windows the exit monitor reports the death while the reader is still draining ConPTY's buffered bytes, and the death report is latched; the reader's 'output is proof of life' publish now asserts liveness only while the pane state still says alive. - Delta delivery is ordered. Mutations were serialized by the state lock but delivered after releasing it, so one writer's deltas could overtake another's and leave every mirroring client on the losing state with no cue to re-pull. A notify-order mutex now spans each mutation and its own fan-out; cheap, because subscriber callbacks are enqueue-only by contract. - Implicit active-tab changes broadcast. tab_create's activation and the close paths' heal now emit ActiveTabChanged, so a client applying deltas never re-implements the server's heal rule; the one inexpressible case (no tabs) needs no delta because it is a fact, not surgery. - The coarse agent status no longer drives disk writes: it flips per hook event and is display-only, so it is outside the changed-facts gate and merely rides along when a load-bearing fact changes. - control_services reports which stores it serves on stderr again — tty7-server configures no log sink, and 'no machine tree' was invisible exactly where it matters, on a headless box. - The local link's first connect attempt is immediate instead of one backoff step late; the observation-slot test withdraws its store so it cannot swallow later tests' observations; and locked()'s poison rationale now says what is actually guaranteed.
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 · nine 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