Devcontainers

While updating my Rails devcontainer to use the latest Ruby 3.4 image, I hit two cryptic build failures on Debian Trixie. If you’re running into similar DevContainer build errors, these fixes will save you some debugging time. The Errors Error 1: APT Hash Sum Mismatch E: Failed to fetch .../libdav1d7_1.5.1-1_arm64.deb Hash Sum mismatch E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing? Error 2: Moby Package Not Found (!) The 'moby' option is not supported on Debian 'trixie' because 'moby-cli' and related system packages have been removed from that distribution. The Fixes Fix 1: Reorder APT Commands in Dockerfile Before (broken): ...

I’ve been calling it the bingo machine. You sit there watching the AI coding agent work. It stops. Asks permission. You hit allow. It stops again. Allow. Allow. Allow. You’re just pulling the lever waiting for the dopamine hit: the moment it finally says “done” and you can ship. Then you actually test it. And it’s not done. Not even close. Twelve months in I spent the last year fully immersed in AI coding tools. Not casually—daily. I rotate through all of them, keeping only a monthly subscription at a time so I can switch to whatever’s state of the art. Cursor. Claude Code. Codex. Back to Claude. ...