Resolves the 7 gap groups in docs/rewrite/notes/review-rv6-codex.md (final-Z8.md): - crash (macOS): request_abort_dump returns false on mach_msg receive timeout/error so the signal-path fallback runs; EXC_SOFT_SIGNAL keeps the signal number in the minidump exception info. - Default SHELL read as an OS string and stored in encoded command form. - macOS executable search works on raw PATH bytes; the default path is used only when PATH is unset. - Windows: config env overrides are decoded; EnvMap compares keys as WTF-16 units with per-unit Unicode simple uppercasing (no lossy conversion, distinct lone-surrogate keys stay distinct). - +show-config writes original bytes for encoded OS data, so export + reload round-trips; UTF-8 configs are byte-identical as before. - Zig's ensureLocale chain lives in ghostty-os for all Unix targets and is used by both the GTK app and the C API init. Also makes the quick-terminal GTK replay test independent of compositor focus: GTK's is-active is read-only, so when niri actually focuses the layer surface the simulated focus-out cannot drive autohide and that assertion is skipped (the production logic is unchanged and matches Zig). Test Plan: - cargo test --workspace (3390 passed, incl. tests/gtk_replay.rs) - just check-macos (both), just check-windows, just check-wasm
ghostty-rs
A Rust rewrite of the Ghostty 1.3.1 terminal emulator for Linux (GTK4 + libadwaita, OpenGL).
It aims for behavioural parity with Ghostty: the same configuration file
format, options, defaults and documentation; the same keybindings and
actions; the same ghostty +action CLI; the same terminal emulation
(including kitty keyboard/graphics protocols, OSC 8 hyperlinks, semantic
prompts, synchronized output, tmux control mode); the same shell
integration, themes and terminfo.
Out of scope: macOS, Windows, WASM, the embedded libghostty C API, and
Sentry crash reporting (disabled by default on Linux upstream).
Building and running
Requirements: Rust (edition 2024), GTK ≥ 4.14, libadwaita ≥ 1.5,
fontconfig, freetype, harfbuzz, Oniguruma, libepoxy, blueprint-compiler
and glib-compile-resources at build time.
cargo run # open a terminal window running your shell
cargo run -- -e htop # run a command
cargo run -- +list-themes # CLI actions work like Ghostty's
cargo run --profile production # optimized build (LTO, no debug assertions)
Development builds find resources/ (shell integration, themes, terminfo)
automatically. Your existing Ghostty config
(~/.config/ghostty/config[.ghostty]) is used as-is.
Installing
just install /usr/local # binary, share/ghostty, terminfo, desktop files,
# completions, man pages, translations, icons
just install /usr false true # system-package layout (lib/systemd/user)
Testing
just test # cargo test --workspace (~3000 tests)
just clippy # clippy with -D warnings
Every Zig test block of the ported files was ported to a Rust test.
crates/ghostty-core/tests holds end-to-end tests that drive the real core,
terminal and a real pty through a fake app runtime. ghostty-bench mirrors
Ghostty's benchmark tool; terminal stream throughput is on par with the Zig
build (see docs/rewrite/notes/perf-P1.md).
Documentation
docs/rewrite/ARCHITECTURE.md– top-down decomposition, crate map, key design decisions, intentional omissionsdocs/rewrite/STATUS.md– work package historydocs/rewrite/notes/– per-crate porting notes, deviations from Zig, audits and verification reports
License
MIT, like Ghostty. Bundled fonts and themes carry their own licenses (see
crates/ghostty-font/res/ and resources/themes/).