https://www.kopylov.net/blog.html Notes on Ruby on Rails, high-load systems, AI agents, and the things Anton Kopylov builds. en https://www.kopylov.net/blog/http3-on-kamal.html https://www.kopylov.net/blog/http3-on-kamal.html Fri, 26 Jun 2026 00:00:00 +0000 kamal-proxy can speak HTTP/3, but Kamal had no way to switch it on. So I forked it, added a proxy.run.http3 option, and opened a PR to Basecamp.