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l0ng-ai
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Three ways the streaming git read could still hold or hang more than it should, all found reviewing #239's implementation. A stream is answered by pushes, so neither of the failure paths the rest of the client relies on covers it: the request deadline was satisfied by the immediate `Unit` reply, and keepalive watches the link, which stays up while a server-side git wedges on a network filesystem. The reader parked forever, on one of a small pool of blocking threads, and the diff probe it belonged to never released its per-repo claim — so that repository's overlay and Changes panel were stuck on "Loading…" for the life of the process. `git_lines` now waits `GIT_STREAM_IDLE_TIMEOUT` between chunks. Between, not across: a slow-but-alive read must be allowed to take as long as it takes, which is why a total deadline would be the wrong instrument. Draining moved to `drain_git_stream` so all three exits are reachable from a test without waiting out two minutes. "Incremental" bounded the number of allocations but not the size of any one of them: a line is only complete at its newline, so a work tree with a minified bundle rebuilt the whole-output peak inside `LineSplitter`, on both ends of a remote link and in the server's outgoing batch. Lines are now capped at `MAX_LINE`, and what is cut says so in the line itself rather than silently shortening a rendered diff. That also bounds the server batch, which makes `GIT_STREAM_CHUNK_MAX` a frame backstop rather than the only thing standing between a bundle and a 32 MiB payload. Finally, `GitStream` is the one request that spawns a thread outside the bounded worker pool, so nothing counted them. `MAX_CONCURRENT_GIT_STREAMS` per connection now does, with the slot returned by a guard so a refusal, a failed spawn and a panicking read all give it back — a leaked slot would be a permanent refusal, not a transient one.
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