No day job. Just me, building F/OSS full-time on public grants and individual sponsorships. If my work has saved you time, please consider sponsoring me on GitHub: https://github.com/sponsors/dahlia.
I maintain Fedify, Hollo, Hackers' Pub, LogTape, Optique, Upyo, Hongdown, Gukhanmun, and Seonbi. A thread on each ↓
Fedify is a TypeScript/JavaScript library for building fediverse software with ActivityPub. It takes care of the annoying protocol parts: WebFinger, HTTP Signatures, inboxes, outboxes, and NodeInfo. Ghost uses it for their fediverse integration, and the work is backed by the @sovtechfund.
Hollo is a single-user fediverse microblogging server, built on Fedify. It's for people who want their own Mastodon-style home without running a whole multi-user instance.
Hackers' Pub is a federated social network for developers, built on ActivityPub. Think DEV Community or Zenn, but federated: people can follow you from Mastodon, Misskey, and other fediverse servers. Still invite-only and moving fast, but the code is AGPL-3.0.
LogTape is a zero-dependency logging library for TypeScript and JavaScript. It works in Node.js, Deno, Bun, browsers, and edge functions. I made it especially for library authors who want to emit logs without choosing everyone else's logger for them.
Optique is a type-safe CLI parser for TypeScript. Instead of parsing arguments and then validating them separately, you describe the command shape in code and let TypeScript enforce it.
Upyo is a zero-dependency email sending library for TypeScript. It gives the same API for SMTP, Mailgun, Resend, SendGrid, Amazon SES, and more, so changing email providers doesn't mean rewriting your send code. Works on Node.js, Deno, Bun, and edge functions.
Hongdown is the Markdown formatter I use across most of my own projects. Written in Rust, it enforces an opinionated style for headings, code blocks, lists, links, and East Asian wide characters. There are integrations for Neovim, VS Code, Zed, and Helix.
Gukhanmun converts mixed hanja-hangul Korean text into hangul-only output, using the Standard Korean Dictionary. It handles plain text, HTML, and Markdown, with parenthetical or ruby annotations when you need them. There's a CLI, a Rust crate, and a WebAssembly build.
Seonbi is a Korean typography tool. It fixes the small things I don't want to handle by hand: curly quotes, spacing around punctuation, hanja annotations, and other Korean prose conventions.