colophon & self
A short page about who's typing, what this site is built with, and what I'm available for. If you only read one section, read the last one.
I'm Jonas Loimer, a software engineer based in Vienna. I've spent the last decade in and around developer tools — design systems at one company, CLIs at another, and a long string of side projects that taught me more than either of those.
I write here because I think out loud better when there's a record of it, and because the small, slow web is having a moment I want to be part of. Most posts are essays or notes; some are TILs that started as Slack messages I never sent.
What I work on
By day: tooling for engineering teams — type systems, linters, the kind of feedback loops that decide whether a codebase is enjoyable. By night: smaller, weirder things. A test runner. A stylesheet. This site, fourteen times.
What this site is built with
This is an Astro site. Content lives in markdown content collections, the few interactive bits (terminal widget, command palette, theme toggle) are client:visible islands, and the whole thing deploys as static HTML to Cloudflare Pages. Roughly 38KB of CSS, ~14KB of JS shipped only when needed.
Type is VT323 for the display headline, JetBrains Mono for UI and code, Newsreader for body. The accent is the same electric lime that's been on every dev console since 1998 because some traditions are good.
What I'm available for
I'm open to consulting work in Q3 2026, especially around developer tooling, design systems, and the messy seam between the two. Also: speaking, technical writing, and the occasional code review for a friend.
The fastest way to reach me is email. I read it every morning, answer most of it, and don't pretend otherwise.