Group your terminals into named workspaces, split them into as many resizable panels as you need, and get a desktop notification the moment your AI CLI finishes a long-running task.
One workspace per project, tabs inside it, and any tab splits into as many resizable panels as you need — with a minimum size enforced so nothing collapses. Workspaces persist across restarts and can be pinned to stay on top.
umux reads the standard OSC completion signals emitted by AI CLIs (Claude Code, Codex, Gemini CLI, Aider…) and fires a native desktop notification when a long-running task finishes. Each panel shows a live agent status — working, needs-attention, idle — detected from escape sequences and process names, never from your terminal content.
Close the app, come back tomorrow: your workspaces, tabs and panel layouts are restored exactly as you left them.
Moving over from cmux? One command — umux import cmux — or the in-app wizard carries your workspaces, groups, working directories and tabs across. Nothing is overwritten: colliding names get a from cmux suffix, and cmux's own files stay read-only.
On the roadmap: the same one-step import for herdr — workspaces, layout and agent sessions carried over, so switching costs you nothing.
In the works: a true terminal surface — colors, cursor movement, alternate screen — so vim, htop and fzf render exactly right, opening your own shell ($SHELL; PowerShell on Windows).
Prefer the terminal? This drops the umux command-line tool into ~/.local/bin — it reads and writes the same store as the desktop app.
curl -fsSL https://raw.githubusercontent.com/CrystalPlatforms/umux/main/install.sh | shLook before you leap: append -- --dry-run to preview what it would do. The CLI manages umux's saved store — it can't control a running app live yet; that's on the roadmap for a future version. macOS and Linux (x86_64). The desktop installers already carry the CLI too — details in the README.
umux is free & open source and ships without a paid code-signing certificate, so your system may ask for confirmation once:
chmod +x once; .deb/.rpm install normally.Free & open source — no accounts, no telemetry, no cookies.