Octo is a lightweight Node.js tool for orchestrating multiple shell commands. It offers three modes—`octo` (an interactive TUI that runs all commands concurrently and lets you switch between them), `octo‑parallel` (runs all commands at once without a UI), and `octo‑sequence` (executes commands one after another); it also supports invoking npm scripts via the `--npm-run` flag. The project is aimed at developers who need a simple, fast way to run and monitor several development or build tasks together.