[hackermailman]

I do courses when I can, try some CS theory, some free resources here https://functionalcs.github.io/curriculum/ such as these undergraduate complexity theory lectures https://www.youtube.com/playlist?list=PLm3J0oaFux3YL5vLXpzOy... or this intro to dbms course https://www.youtube.com/playlist?list=PLSE8ODhjZXjYutVzTeAds... then try using a SQL automated prover http://cosette.cs.washington.edu/

Some more VIM resources, Vim as an IDE https://blog.jez.io/vim-as-an-ide/

Lecture notes, entire course on vim and horrors that is vimscript http://www.contrib.andrew.cmu.edu/~haoxuany/vim/

Great stackoverflow post on grokking vi to understand vim https://stackoverflow.com/questions/1218390/what-is-your-mos...