l0ng-ai a82c1f9439 fix(core): only the machine's own instance inherits the legacy tree
The migration moved `machine.json` into whichever config directory started
first. In the very setup this change exists to fix — a default install beside a
`--config-dir` one — that is the second instance renaming the machine's tree
into its own directory, leaving the primary to come up owning nothing. It also
fired in our own test suite, where `routed_pane` and friends launch a real
`tty7-server --config-dir <TempDir>` under the developer's own `HOME`.

Adoption is now the entitlement of the instance running out of the config
directory this machine resolves to on its own: `$TTY7_CONFIG_DIR` where the box
names one, `$HOME`'s otherwise. Comparing paths rather than asking whether
`--config-dir` was passed is what keeps the ordinary install working — `spawn`
hands every daemon it starts an explicit `--config-dir`, its own included — and
counting `$TTY7_CONFIG_DIR` is what keeps remote hosts upgrading, since a remote
`tty7-server` is launched without the flag and finds its directory that way.

Also tightens the cross-filesystem fallback: a rename that failed because
another process already carried the file over is the one benign race, not an
error to report and not something to copy over. What is left copies through
`create_new`, so "never overwrite what is already there" holds against a racing
writer and not merely against an `exists` check several syscalls old, and a
write that does not finish leaves nothing behind.

Tests: the gate both ways, the appearance hint riding along, the same directory
under two names, the copy path refusing an occupied destination, and two
cross-process cases in `machine_tree` that start a real server under a scratch
`HOME` — one carrying the legacy tree in, one leaving it alone.
2026-08-10 16:54:31 +08:00

tty7

tty7

A terminal workbench: persistent sessions, remote work, agents.

Pure Rust · GPU rendering on Zed's gpui · VT core from Alacritty


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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 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 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

Terminal and keybinding reference: docs/features.md. The agent-facing CLI interface is documented in skills/tty7/SKILL.md.

Install the skill with:

npx skills add l0ng-ai/tty7

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/.


S
Description
A terminal workbench in pure Rust: shells, persistent sessions, SSH, coding agents. GPU-rendered on Zed's gpui, VT core from Alacritty.
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