Or just document things well enough that they are explained and can be re-created from scratch?

https://news.ycombinator.com/item?id=47300747

c.f.,

http://literateprogramming.com/

Last month I bought a flet.dev subscription (and tokens 3 times over --- the recent update seems to be far more efficient in terms of what one gets for a given token spend?) and have been using it to try to make some small apps for CNC work and I am currently dismantling one based on converting the generated .md documentation and re-writing it with the source code inserted at appropriate places and with added commentary and documentation and links --- I'm confident that when I'm done I'll have a tool which I understand and which if need be, could be re-created w/o AI help, or ported to some different UI toolkit/build system.