# Startup Skills: Emil Kowalski > Every skill by Emil Kowalski in the index, with a line saying when to use each one. I index these, I do not host them. Every entry points at the original author's repo and carries a source byline. ## Entries (9) - [Animate](https://github.com/emilkowalski/skills/tree/main/skills/animate) by Emil Kowalski: Use when something needs to animate and no motion exists for it yet. - [Animate Expo](https://github.com/emilkowalski/skills/tree/main/skills/animate-expo) by Emil Kowalski: Use when animating screens, gestures or sheets in an Expo or React Native app. - [Animation vocabulary](https://github.com/emilkowalski/skills/tree/main/skills/animation-vocabulary) by Emil Kowalski: Use when a motion effect can be described but its name is not known. - [Apple design](https://github.com/emilkowalski/skills/tree/main/skills/apple-design) by Emil Kowalski: Use when web UI should follow Apple's approach to gestures, springs and physical motion. - [Design Engineering](https://github.com/emilkowalski/skills/tree/main/skills/emil-design-eng) by Emil Kowalski: Use when UI polish, component design or animation calls should follow Emil Kowalski's approach. - [Improve animations](https://github.com/emilkowalski/skills/tree/main/skills/improve-animations) by Emil Kowalski: Use when a whole codebase's motion needs a prioritised plan rather than a review. - [Pick UI library](https://github.com/emilkowalski/skills/tree/main/skills/pick-ui-library) by Emil Kowalski: Use when a frontend task needs one library chosen from a curated shortlist. - [Prototype](https://github.com/emilkowalski/skills/tree/main/skills/prototype) by Emil Kowalski: Use when trying genuinely different builds of one UI piece behind a live picker. - [Review animations](https://github.com/emilkowalski/skills/tree/main/skills/review-animations) by Emil Kowalski: Use when finished motion needs judging against a craft bar before it ships. ## Links - [Page](https://startupskills.dev/emilkowalski): the same list, for a person. - [The whole index](https://startupskills.dev/llms.txt): all 189 entries. - [Skills index](https://startupskills.dev/skills): every skill, with search.