The way I try to make apps snappy is to choose time over space 90% of the time. Yes, I have had php processes that hit 1GB but I'd rather it gets done fast
BTW, dont feel bad if it seems like it takes a lot of time to move forward through steps, its a very condensed 10 min video. Each step when done for the first time can take a while to grasp and learn
For self hosting stuff, you can follow this https://youtu.be/jFrGhodqC08 its a tutorial on how you can host your own website and teaches knowledge you can transfer onto self-hosting dockerized services.
Well, even the lawyer is saying "judge, just look out the window and see all those supporters saying that what he did was right."