BGP isnt just Turing complete, It’s Cthulhu complete

real men write their code one bit at a time with a laser pointer and a fiber optic network cable

Or you could just use zig which is better at compiling C than C (the second it supports the espressif chips I’m never touching C again)

Squirrel vs snail - who wins?

I get very far by just keeping a set of folders for each piece of equipment in a git repo.

Pictures, etc, and sometimes the PDF manual if I bother.

The difficult part here is being consistent over time - making sure you mark down when you bought things, serial numbers, etc. a proper website/app will force you to do this, but there is flexibility in having whatever convention you like most