I didn’t say “personal package manager”. Do you refer to the part “basically my own AUR package”? pacman
, the package manager of Archlinux that is also used in EndeavourOS, allows for installing custom packages. There is another tool part of Archlinux that let you build custom packages. These custom packages can be installed on your system, which is then seen like a normal package and handled this way with all the defined dependencies and information about the package. You can install the package from a local location, it does not need to be online repository.
Then you can upload it to the AUR, which is exactly that: Arch User Repository. But you don’t have to upload it. Either way such a custom build package is what I referred to my own AUR package. For more information see: https://wiki.archlinux.org/title/Arch_User_Repository
With that logic we should never buy a game, unless it is directly going to the developers hands? If you want it in your Steam library, then its the best time to buy it now probably while there is a sale active and before you cannot in the future, in case it gets unlisted caused by these legal issues. BTW I’m not doing the FOMO: FEAR OF MISSING OUT here. This is for people like me who rely on Steam library for convenience.