Brian Pfeil
I've spent 30 years building things with technology, and I write about what I learn so others can learn from that experience. This started as a blog; now it's also home to my projects, photos and video, music, and the channels I follow.
Explore
Posts
Notes and playground write-ups on cloud, code, AI and tooling
Learn
Free courses and docs for code, cloud and AI, sorted by goal
AI Radar
Models, tools and the people worth reading, refreshed every morning
- No more RTX 5090
- I made my Claude Code sub-agents a video call. Weirdly, it’s the best way I’ve found to follow what they’re doing.
- I'm a 9th grader and I used Claude to prove a geometry conjecture: the rhombicosidodecahedron can't pass through a copy of itself
- Qwen3.8-27B on a single 3090: 140 tok/s on code with a custom megakernel
Media
Photos and video from my Instagram, no account needed
Movies
Favorite films, with where to stream them
GitHub
Every public repo, searchable, with learning paths through the playgrounds
- brianpfeil.com
- travel
- aws-amplify-console-playground
- aws-api-gateway-websockets-serverless-playground