Train Lines

I decided to revisit an old project of mine, rendering train lines in Japan. I gave a talk at Tokyo Tech Meetup about my obsession with open geo data and trains. Aside, I'm hosting a Geo Tokyo meetup next Wednesday, join me!

So with the help of Claude Code, Antigravity and Codex with a lot of nudging, I made a huge revision to the train lines demo that works on mobile, shows stations and train colors, etc.