This thing is really short. https://github.com/bramcohen/manyana/blob/main/manyana.py is 473 lines of dependency-free Python (that file only imports difflib, itertools and inspect) and of that ~240 lines are implementation and the rest are tests.
In English, you might think of "procrastination" or "we'll get to it."
In Portuguese, you would say "proxima semana", literally "next week", but it means "we'll get to it" (won't get to it).
This is an implementation of FugueMax (Weidner and Kleppmann) done using a bunch of tricks from Yjs (Jahns). There’s generations of ideas here, by lots of incredibly smart people. And it turns out you can code the whole thing up in 250 lines of readable typescript. Again with no dependencies.
https://github.com/josephg/crdt-from-scratch/blob/master/crd...