Cooking a Debian System: One, Two, Debos!
summary
debos is a reproducible image builder for Debian that runs in CI, uses debootstrap to create chroots and qemu user emulation + binfmt_misc for foreign-arch builds, and exposes about 12 actions (apt, overlay, run, image/partition, etc.) for composable steps. Recipes use Go text/template for parameterized builds. Example builds produce a bootable Raspberry Pi 3 image (takes minutes, image timestamps in UTC), can be run non-root if the build user has the needed /dev qemu permissions, and the example works end-to-end.
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