@catsaladCat 🐈🥗 (D.Burch)
Debian: cockroach -- unkillable, ressilant, will be laughing at us from the rubble two centuries from now. Eats ancient garbage and can drink used engine oil straight.
Arch: ant -- tedious, well organized, hard working, sort of pedantic and singularly focused, looks chaotic but everything has a purpose you just can't understand right away. You sort of need to put it in an ant farm (emulator, container, roots, etc) and watch it for some time to understand what is going on.
OpenSUSE: some sort of small dog, I'll go with Chihuahua -- easy to underestimate, pleasant to be with, plenty of people would probably like it more if not for the fact that it isn't stunningly pretty and will sometimes bite you
NixOS: magpie -- finnicky, sorta self interested, very messy but fastidious at the same time, piles of rare and valuable objects of unknown use organized in a haphazard way that will never change, steals shiny stuff, has the biggest hoard of weird knickknacks you've ever seen, does its own thing, dislikes you you by default but will warm up to you if you spend time with it and give it cool stuff.