Comprehensive OpenTUI skill for building terminal user interfaces. Covers the core imperative API, React reconciler, and Solid reconciler. Use for terminal OpenTUI development tasks including components, layout, keyboard handling, animations, and testing. Do not use for Electrobun/desktop-web-only window chrome, CSS, or browser renderer work unless terminal OpenTUI behavior is also in scope.
Testing Gloomberb at every level: CLI commands for fast data/integration checks, OpenTUI's built-in test harness for component tests, and tmux for full end-to-end terminal TUI testing. Use this skill when you need to verify terminal TUI features, write OpenTUI regression tests, or smoke-test the terminal app. Do not use it for Electrobun/desktop-web-only visual or window chrome work unless tmux/OpenTUI coverage is explicitly needed.