From their GitHub:
cpak installs applications from OCI images while keeping package metadata in a Git repository. It provides native desktop integration, shared content-addressed layers, atomic updates and a rootless Linux sandbox from one Go binary.
It seems interesting. I’ve never heard of it before, but apparently Bottles packages with cpak along with flatpak. The main reason I use flatpaks are its sandboxing capabilities, so it would be cool if cpak brings new stuff to the table while matching or overpassing the sandboxing capabilities.



I probably wouldn’t host it at home, there are so many personal devices containing personal information on the network that I don’t consider the risks involved worth it. I would get a VPS, even if they’ve increased in price lately. If you do set it up at home, you will have to harden the server and the network, and that requires a lot of time, knowledge and effort. Just keep this in mind!