# Obsidian Developer Documentation
Learn how to build plugins and themes for Obsidian. Improve your personal experience or share your creations with the community.
## Plugins
Build plugins to extend the existing functionality in Obsidian using TypeScript.
- [[Build a plugin|Build your first plugin]]
- [[Submit your plugin]]
## Themes
Design beautiful themes and snippets for Obsidian using CSS.
- [[Build a theme|Build your first theme]]
- [[Submit your theme]]
- [[CSS variables]]
## Join the developer community
If you get stuck, or if you're looking for feedback, [join the community](https://obsidian.md/community).
- `#plugin-dev` and `#theme-dev` channels on Discord.
- [Developers & API](https://forum.obsidian.md/c/developers-api/14) and [Share & showcase](https://forum.obsidian.md/c/share-showcase/9) on the forum.