Limux

A GPU-accelerated terminal workspace manager for Linux, powered by Ghostty's rendering engine. A special thanks to the cmux contributors who inspired this build.

If you are on Mac, please visit https://github.com/manaflow-ai/cmux to download the original.

https://github.com/user-attachments/assets/6f3047c2-e2b6-49f2-b536-570a1570d0f8

Features

• GPU-rendered terminals via embedded Ghostty (OpenGL)
• Workspaces with folder-based naming, persistence across restarts, and sidebar management
• Split panes (horizontal/vertical) with keyboard navigation
• Tabbed terminals within each pane
• Built-in browser (WebKitGTK)
• Right-click context menu with copy, paste, split, clear
• Drag-and-drop workspace reordering with favorites/pinning
• Animated sidebar collapse/expand

Install

Download the latest release from GitHub Releases.

Debian/Ubuntu (.deb) — recommended:

sudo dpkg -i ./limux_0.1.20_amd64.deb

AppImage — portable across Ubuntu 24.04-era desktops and newer, no install needed:

chmod +x Limux-0.1.20-x86_64.AppImage
./Limux-0.1.20-x86_64.AppImage

Release AppImages are built and checked on the Ubuntu 24.04 GLIBC_2.39 floor. They bundle Limux, Ghostty resources, WebKitGTK helper processes, and AppImage-only loader modules such as the gdk-pixbuf SVG loader. They still use the host GTK4 and libadwaita runtime, so older distributions may need the .deb, tarball, or a source build with matching system packages instead.

AppImage runtime library paths are scoped to the Limux app process. Terminals spawned inside Limux restore the user's original library/loader environment so host tools such as Flatpak do not load AppImage-private libraries first.

Tarball — manual install:

tar xzf limux-*-linux-x86_64.tar.gz
cd limux-*-linux-x86_64
sudo ./install.sh

Arch Linux (unofficial AUR package) — community-maintained by antonbarchukov:

yay -S limux-bin

The AUR package is available at limux-bin. Thanks to antonbarchukov for packaging Limux for Arch users. Arch packaging is not currently maintained by upstream; please report AUR packaging issues to the package maintainer first. See issue #5.

To uninstall:

# deb
sudo apt remove limux

# tarball
sudo ./install.sh --uninstall

System dependencies

# Ubuntu/Debian
sudo apt install libgtk-4-1 libadwaita-1-0 libwebkitgtk-6.0-4

Build from source

Prerequisites

• Rust toolchain (stable)
• Zig
• GTK4, libadwaita, WebKitGTK dev packages
• Initialized Ghostty submodule

# Install dev dependencies (Ubuntu/Debian)
sudo apt install libgtk-4-dev libadwaita-1-dev libwebkitgtk-6.0-dev pkg-config build-essential

# Initialize the Ghostty submodule and build the embedded library
git submodule update --init --recursive
(cd ghostty && zig build -Dapp-runtime=none -Doptimize=ReleaseFast)

# Build limux
cargo build --release

# Run (point to libghostty.so location)
LD_LIBRARY_PATH=../ghostty/zig-out/lib:$LD_LIBRARY_PATH ./target/release/limux

Package a release tarball

./scripts/package.sh

This builds the binary, bundles libghostty.so, icons, and an install script into a tarball. package.sh also rebuilds libghostty.so with ReleaseFast and -Dcpu=baseline, so Zig and the initialized Ghostty submodule must be present.

Development

Run the canonical local quality gate before committing:

./scripts/check.sh

Repository maintainability rules live in docs/maintainability.md.

Agent integrations

Limux ships first-class hooks for coding agents (Codex, Claude Code, and Gemini CLI). Every terminal limux spawns auto-exports LIMUX_WORKSPACE_ID / LIMUX_SURFACE_ID / LIMUX_PANE_ID / LIMUX_TAB_ID / LIMUX_SOCKET, so the CLI auto-targets the right place with no flags needed from inside the agent's own terminal.

# Fire a libadwaita toast + sidebar unread badge from any agent
limux notify --subtitle "needs review" --body "blocked on auth choice" "Input needed"

# Install Limux session-restore hooks for supported agents
limux hooks setup

# Drop-in hook handlers translate hook JSON on stdin into notify/session state
echo '{"event":"stop"}' | limux claude-hook --event stop
echo '{"event":"finished"}' | limux gemini-hook --event finished

# Spin up a multi-agent collaboration team — one workspace per agent,
# launches each agent's CLI, and writes AGENTS.md describing the
# <agent-msg> XML protocol so peers can talk to each other:
limux agent-team --agents codex,claude --cwd "$PWD"
# → Codex and Claude can now do:
#   limux send --workspace claude $'<agent-msg from="codex" to="claude" id="…" ts="…">…</agent-msg>\n'

# Or split the current agent's pane and launch another terminal agent.
# Inside Limux, workspace/surface/pane default from LIMUX_*:
limux new-pane --direction right --command claude
# Live GTK self-spawn currently supports terminal panes only.

# Explicit source targets are also accepted and serialized unchanged:
limux new-pane --workspace "$LIMUX_WORKSPACE_ID" --surface "$LIMUX_SURFACE_ID" \
  --pane "$LIMUX_PANE_ID" --direction down --command "codex"

# Keep both agents in the same workspace on separate splits/tabs:
limux identify --json
limux list-panels --workspace "$LIMUX_WORKSPACE_ID"
limux send --workspace "$LIMUX_WORKSPACE_ID" --surface "<peer-surface-id>" \
  $'<agent-msg from="codex" to="claude" id="…" ts="…">…</agent-msg>\n'

See the auto-generated AGENTS.md (written into the shared cwd) for the full protocol spec, peer table, and editable Policies section.

Checked-in hook templates live in hooks/. They mirror limux hooks setup for Codex, Claude Code, and Gemini CLI; OpenCode is omitted until its hook integration is ready.

Coding agents working on limux itself should read AGENTS.md and CLAUDE.md in the repo root — those cover the build loop, crate map, and the feat/cmux-parity roadmap tracked in docs/cmux-parity-plan.md.

Keyboard shortcuts

Most host-owned defaults use Ctrl+Alt so plain terminal Ctrl editing keys pass through. Fullscreen defaults to F11. Custom remaps may also use Cmd, which Limux maps to either the Linux Meta or Super modifier. Opt maps to Alt.

App

Shortcut	Action
Ctrl+Alt+Q	Quit Limux
Ctrl+Alt+N	Open a new Limux instance
F11	Toggle fullscreen

Browser

Shortcut	Action
Ctrl+Shift+L	Open the focused browser page in a new split
Ctrl+L	Focus browser address bar
Ctrl+[	Browser back
Ctrl+]	Browser forward
Ctrl+R	Browser reload
Ctrl+Alt+I	Open Web Inspector
Ctrl+Alt+C	Open Web Inspector (console-only targeting is not exposed by WebKitGTK)

Find

Shortcut	Action
Ctrl+Alt+F	Open find on the focused terminal or browser
Ctrl+Alt+G	Find next
Ctrl+Alt+Shift+G	Find previous
Ctrl+Alt+Shift+F	Hide find
Ctrl+Alt+E	Use selection for find

Terminal

Shortcut	Action
Ctrl+Alt+K	Clear scrollback
Ctrl+Shift+C	Copy selection
Ctrl+Shift+V	Paste
Ctrl+Alt++	Increase font size
Ctrl+Alt+-	Decrease font size
Ctrl+Alt+Shift+0	Reset font size

Workspace And Pane

Shortcut	Action
Ctrl+Alt+Shift+N	New workspace (folder picker)
Ctrl+Alt+Shift+W	Close workspace
Ctrl+Alt+Shift+Left/Right	Cycle tabs in focused pane
Ctrl+Alt+Shift+D	Split down
Ctrl+Shift+T	New terminal tab in the focused pane
Ctrl+Alt+D	Split right
Ctrl+Shift+W	Close focused tab
Ctrl+Alt+W	Close focused pane
Ctrl+Shift+Z	Toggle focused pane zoom
Ctrl+Alt+M	Toggle sidebar
Ctrl+Alt+Shift+M	Toggle top bar
Ctrl+Alt+T	New terminal tab
Ctrl+Alt+Arrow	Focus pane in direction
Ctrl+Alt+PageDown/Up	Next or previous workspace
Ctrl+Alt+1-9	Switch to workspace by number

Architecture

rust/
  limux-host-linux/    # GTK4/Adwaita UI (window, sidebar, panes, tabs)
  limux-ghostty-sys/   # FFI bindings to libghostty
  limux-core/          # Command dispatcher and state engine
  limux-protocol/      # Socket wire format types
  limux-control/       # Unix socket server
  limux-cli/           # CLI client

The terminal rendering is handled entirely by Ghostty's embedded library (libghostty.so), which provides GPU-accelerated OpenGL rendering. The UI layer is native GTK4 with libadwaita.

License

MIT