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WSL reaps what an interop session started the moment that session's `wsl.exe` exits, and `setsid` does not make the child safe the instant it runs. The launch line backgrounds `tty7-server --daemon` and returns in milliseconds, so the sequence was: `sh` exits, `wsl.exe` exits, WSL tears the session down, and the daemon died before it could bind its socket. What that looked like was `ensure_daemon`'s "started but nothing was answering on the control socket after 15s", over a binary that had just been installed correctly — no other symptom, and nothing in the launch line to blame. Reproduced against Ubuntu-24.04 by running the launch line alone: with nothing after it the daemon is gone; with as little as `sleep 0.3` after it the daemon lives and serves. `nohup`, `setsid --fork` and a double-forked subshell all die the same way, so the wait is the fix rather than a different spelling of the detach. Deliberately not a wait *for the socket*: `ensure_daemon` only reaches the launch when the socket did not answer, and the ordinary reason for that is a socket file a dead daemon left behind (`wsl --shutdown` is routine), so a `-S` test would pass on the stale file and change nothing. The SSH path needs none of this, so the shared `launch_command` is untouched and the wait lives in the WSL ops.
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