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Tmuxinator vs Smug: catalog facts
Tmuxinator	Smug
Free Free and open source.	Free Free and open source under the MIT license.
macOS, Linux, Command line	macOS, Linux, Command line
Session layouts kept in readable YAML files Rebuilds windows, panes and commands with one command	Creates tmux windows and panes from a configuration file Can start sessions in Git worktrees
Requires tmux and a Ruby installation Homebrew installation has reported issues	Requires tmux
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: MIT
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.