~/repos
I was going to suggest just getting receipts (still only solving part of the problem) and using a spreadsheet. Why overthink it? Then I was reminded by my own ADHD that I haven't screwed around with spreadsheets in a while and am now off to play around with pivot tables. Immediately demonstrating why this is a bad solution.
I'm not seeing a problem here
What we call a centimeter can be however large we choose. Say it were twice as large as it is now and we all agreed that size is a centimeter. What if we chose the inch and the centimeter to be the same size? Agreement doesn't negate the fact that we could have chosen it to be any arbitrary size.
The only true "universals" are universal constants like the speed of light or Planck's Constant. They set boundaries and scales irrespective of the units we use to describe them.
The size of an inch or a centimeter is arbitrary. In fact, all measurements other than natural units are arbitrary. Units need not scale linearly either. E.g. dB or the Richter Scale. A women's number 11 or a size 10 shoe or a meter are all equally valid units of measure. What is fucked is the delineation of "men's" and "women's" sizes and the fact that women's clothes have fewer and shallower pockets.
Draw a duck and share your art

This sounds vaguely illegal
We should stop using memes of a hateful and abusive douche
Pop!OS. It is maintained by a company called System76 who make Linux computers. You might think about getting one if you want a new computer. Support the cause!
I feel personally attacked

Sex work is work.