In order to keep all my settings, configurations and installed packages after a reinstall I created a repository containing shell scripts and all changed config files.
It is split up into a default-install script, which installs basic software I use on all pc’s, and a profile-install script, which installs everything specific for a certain profile or pc.
The repository also contains a script for my AstroPi, a Raspberry Pi running on Arch Linux ARM capable of controlling my telescope setup.
The source code can be found here: https://github.com/RononDex/dotfiles