[coverclock]

Everyone has their own preferred mode of learning. Mine is hands on, learning by doing. I can't learn new material just by reading a book (although I have friends and colleagues that appear to be able to do so). I have over thirty repos on GitHub, most of which are the result of one learning experience or another: GPS, SQLite, yacc/lex, Go, Rust, etc. For some of these, I had to buy hardware, e.g. an eval board, GPS receivers, etc. That's what works for me. Your mileage may vary.