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Argh-P-M! Dissecting the RPM file format – Stefan's Blog

On my private systems, I ship configuration as system packages. Every distribution has their own tooling and process for building these packages, but I eventually grew tired of the ceremony involved in it, and wrote my own system package compiler . Since Im using Arch Linux everywhere, the first version generated only Pacman packages, but I was determined to make it truly cross-distribution. The first step was support for Debian packages, which I implemented in a mere two evenings (one for understanding the format, one for writing the generator).