# Positronia

> Bryan McEire on systems programming, Lisp, operating systems, hardware, and the pragmatic adoption of AI. Long-form, hands-on, and built to last.

Positronia is a personal technical blog by Bryan McEire (CTO at BoxHub). Posts are long-form and hands-on, covering systems programming, Lisp, operating systems, hardware, and the pragmatic adoption of AI.

Every post is available as clean Markdown — append `.md` to any post URL. A concatenated full-text export of all posts is at https://positronia.com/llms-full.txt.

## Posts

- [The Rise and Fall of Lisp Machines](https://positronia.com/the-rise-and-fall-of-lisp-machines): Fewer than 7,000 Lisp machines were ever sold, but they commercially pioneered garbage collection, object-oriented programming, interactive development, and the free software movement. Here is what happened to them.

## Pages

- [About](https://positronia.com/about): Bryan McEire: CTO at BoxHub, co-founder of Spotahome, professor, and a free software advocate since he was 14. The story behind Positronia.

## Resources

- [Full-text export](https://positronia.com/llms-full.txt): every post as plain Markdown in one file.
- [RSS feed](https://positronia.com/feed.xml): full-content feed of all posts.
- [Sitemap](https://positronia.com/sitemap.xml): every URL on the site.