Technically, only apt exists, as per Debian. The filesystem is ext4 but with two system partitions, so that you:
have one backup partition
can install updates to the unused partition for seemless and atomic updates
Be immutable whilst offering easy updates
It gets compared to NixOS because NixOS is also an immutable distribution and the package manager is equally as flexible as apx (even tho apx also allows you to use nix)
Multiple package managers outside of apt/dpkg from Debian get managed automatically using the apx tool, only if you wish to use it. Otherwise, for the desktop they promote the use of Flatpaks or AppImages.
Technically, only
aptexists, as per Debian. The filesystem is ext4 but with two system partitions, so that you:It gets compared to NixOS because NixOS is also an immutable distribution and the package manager is equally as flexible as
apx(even thoapxalso allows you to use nix)Multiple package managers outside of
apt/dpkgfrom Debian get managed automatically using theapxtool, only if you wish to use it. Otherwise, for the desktop they promote the use of Flatpaks or AppImages.