https://maimul.github.io/blog/ One thing I learned, written up like a newspaper feature. en Mon, 26 Oct 2026 09:00:00 +0800 https://maimul.github.io/blog/005-deploy-green-shipped-nothing/ https://maimul.github.io/blog/005-deploy-green-shipped-nothing/ Mon, 26 Oct 2026 09:00:00 +0800 My home server's deploy failed at step one, and every step after it reported success. Here's how a failure goes missing in a deploy chain, and a copy-paste script that refuses to call nothing a success. deploys git bash zsh docker kubernetes k3s rclone home-lab https://maimul.github.io/blog/004-green-gate-red-commit/ https://maimul.github.io/blog/004-green-gate-red-commit/ Sat, 24 Oct 2026 09:00:00 +0800 My AI coding agent was only allowed to commit code once the code passed my checks. One night the checks failed, the agent committed anyway, and the guard I'd built to stop exactly that did nothing. Here's why, in plain words, and the rule that fixes it. claude-code git-hooks ai-coding-agents ci bash fail-closed incident-review devops https://maimul.github.io/blog/003-every-test-passed-production-500/ https://maimul.github.io/blog/003-every-test-passed-production-500/ Wed, 21 Oct 2026 09:00:00 +0800 My test suite was green, my smoke test was green, and a photo upload in a FastAPI app I work on had never worked. Here's the Python behaviour that hid it, the test that now catches it, and why fixing the bug still didn't fix the feature. python imports fastapi testing ci kubernetes sqlalchemy https://maimul.github.io/blog/002-bonjour-avahi-nas-printer/ https://maimul.github.io/blog/002-bonjour-avahi-nas-printer/ Mon, 19 Oct 2026 09:00:00 +0800 My iPhone could see my home printer, but it hadn't printed a page in 127 days. Here's how I tracked down why, what finally fixed it, and how to check your own setup when AirPrint goes quiet. bonjour mdns avahi airprint cups synology docker home-network https://maimul.github.io/blog/001-airprint-for-any-printer/ https://maimul.github.io/blog/001-airprint-for-any-printer/ Mon, 19 Oct 2026 09:00:00 +0800 My Epson L3250 doesn't support AirPrint, so my iPhone can't see it. One small container on my Synology NAS fixes that. Here's how it works, and how to set it up for your own printer. airprint cups avahi bonjour docker synology home-network