I can't say enough good things about Anki. It's the best learning tool I've ever used.

I dump in everything I care about: command syntax, architecture, diagrams (image occlusion), Udemy course material, etc.

It's amazed me the difference it makes versus having to pause and Google all the time. You're faster, you're more competent, and you're better prepared to speak persuasively on the topics you study.

I only wish I had found it sooner. Highly recommended.