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The patch note said "temporary until upstream releases gssapi-with-mic support (PR #737)" and left it there. Checking that exit condition turned up three things worth writing down. The PR number is wrong: #737 does not exist. The real one is Eugeny/russh#738, and it was merged upstream on 2026-08-11T09:27:51Z — so the condition this patch was waiting for has half arrived. Only half: v0.62.6 was published at 09:26:56Z the same day, one minute before the merge, so no release carries it yet and the patch still has to stay. The part that matters more: this rev is dated 2026-07-14 and branched before v0.62.3, so it is missing every security fix upstream has published since — v0.62.4's three (malformed PTY request, malformed Curve25519 KEX packet, zero Curve25519 key), v0.62.5's channel-ID validation and v0.62.6's max_auth_attempts. The last two are described as server-side and tty7 runs no SSH server, but "fix mpint encoding and validate curve25519 keys" is in key exchange, which a client runs too, against whatever server it dials. Flagged for assessment rather than asserted: I have not reproduced it. No dependency change here. Moving the SSH layer wants an SSH connection to test it against, and connecting needs the GUI's connection manager, which cannot be driven from this environment. The interim fix is to rebase the fork onto v0.62.6 or later; the real one is to drop the patch when #738 ships. Verified with the GitHub API rather than assumed: commit dates on both sides, and the fork does not contain any of the four fix commits. 2937 tests pass.
tty7
A terminal workbench: persistent sessions, remote work, agents.
Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty
English · 简体中文
Why
- Performance — ~2× the throughput of Alacritty, Ghostty, or Kitty (benchmarks)
- Persistent sessions — quit or reboot; your shells and supported agent sessions keep running, no tmux
- Editor-grade input — suggestions, completion, highlighting, history search
- Remote development — files, repos, panes, and git data stay on the remote machine
- Native SSH — profiles, SFTP, port forwarding, and jump hosts
- Agent-aware — Claude Code, Codex & co.: status, notifications, git context
- CLI + Skills — agents create panes, run commands, and inspect output
Install
Native builds for macOS, Windows, and Linux 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 libraries bundled |
What's inside
| Editor-grade 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 |
| Agent-aware | per-pane detection (18 CLIs): status dot · notifications · branch + diff · resume after reboot · tray icon when input is needed |
| Remote workspaces | remote files, repos, changes, diffs, worktrees, tabs, and panes · reconnect from any client and continue where you left off |
| CLI + Skills | bundled tty7 CLI · agent skill · pane/workspace control · real PTY commands · output, process, port, and agent status |
| SSH | native russh stack: profiles with keychain secrets · SFTP panel · port forwarding · jump hosts · one-time, unprivileged tty7-server install |
Full documentation lives in docs/ —
keyboard shortcuts ·
config.json ·
CLI reference. The agent-facing CLI interface is also
documented in skills/tty7/SKILL.md.
Install the skill with:
npx skills add l0ng-ai/tty7 # install
npx skills update tty7 # update later
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 I/O — 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 server 11 MB.
Methodology and one-command reproduction: scripts/bench/.
Built on gpui and alacritty_terminal · Apache-2.0 · Discord · Changelog