







Introduction - Tree-sitter
Tree-sitter is a parser generator tool and an incremental parsing library. It can build a concrete syntax tree for a source file and efficiently update the syntax tree as the source file is edited. Tree-sitter aims to be:
third-party apis: community infrastructure on atproto - Keith's Thoughts
you can just build things from an open set of tools
ATScan
Open-source tooling for AT Protocol. ATScan has 14 repositories available. Follow their code on GitHub.
Drips | Fund Open Source In Your Ecosystem
Drips is the easiest way to fund Open Source in your ecosystem. Fund your dependencies with built-in dependency splitting, run RetroPGF rounds, and achieve any

Components in Markdown
Fast, streaming-ready markdown parser with Vue, React, and Svelte component support. Parse Comark content from strings or streams with TypeScript support.

OpenWiki: Open Source Repo Documentation for Coding Agents
OpenWiki generates and maintains codebase documentation so coding agents can find the repo context they need without loading everything into one instruction file.


EmDash
The Astro-native CMS. A modern successor to WordPress with type-safe content, plugin extensibility, and portable deployment.
Sodal
Fast, safe collaboration for every community. Sodal has 11 repositories available. Follow their code on GitHub.
Singi Labs
Open source foundations for networked apps. Singi Labs has 13 repositories available. Follow their code on GitHub.

fx – a terminal JSON viewer & processor
A terminal viewer & processor for JSON, YAML, & TOML (TUI and CLI)

Please welcome @railway.com as the newest member of @opensourcepledge.com 🎉 They rely on OSS projects like @vite.dev, @tanstack.com, @drizzle.team and @tailwindcss.com, and they're doing their part to sustain the ecosystem, from which we all benefit. Read all about it:
Railway Runs Open Source, Now We're Funding It
blog.railway.com