fryanpan.com

In March 2025, the city adopted a Biking and Rolling Plan that proposes a bike network that it claims will be safe enough for all ages and abilities. So far, it looks like we've built just 2% of the plan in the last 18 months. We look into how the plan's going and how the city might move faster.

My AI agents now make me about 30x more productive than before AI. So what do I do with my time?

It took two years and half a dozen doctors to figure out I had a rare disease. So I tested how good Claude is at diagnosing rare-disease cases using only public medical tools — and audited what the published benchmarks actually measure.

How I tuned my Claude Code agent setup to keep my side projects rolling while exploring Berlin from cafés, trains, and bike rides.

I've wanted to have a place on the web that makes it easier to connect with people (and agents). This is the start of a basic personal site where I hope to do that!

Navigating Berlin with our four-year-old, the "good" bike routes from Google Maps kept dropping us onto painted bike lanes on major roads. So I spent about 32 hours over a few weeks building a prototype that finds actually-quiet routes for families with young kids.

Notes on how I structure my charitable giving — donating appreciated stock through a Donor Advised Fund, why I weight international causes more heavily than domestic, and what the tax mechanics actually are. Written for friends who've asked how this works.