Progress is going ok - I have a good understanding of the techniques and have started to apply them. A goal is to commit main points from books and concept-schemas I make to memory. Something that's more of a "side project" is using PAO (with a variation on the Dominic system) to memorize numbers. The overhead in making PAOs for 100 numbers is going very slowly. https://artofmemory.com/blog/pao-system/
I'll check out some of those other resources - thanks for sharing!
Jest is the slowest if running tests in parallel with Mocha >=8. Mocha is the slowest in its default serial mode.
My conclusion with Jest was this:
"Jest is recommended if you want to get tests up and running quickly. It has everything built in and requires very little configuration. The command line and GUI experience is unmatched. Finally, it's the most popular and makes an excellent pair with React."