+1. I've standardized on 3 thumb keys per hand across all my keyboards.

For me, it's about knowing the mnemonic for the various vim commands and what the keys do, not where they are placed on the Qwerty layout. I've been touch-typing Dvorak for over 20 years and think about what I am trying to do in vim/vi (or evil-mode) rather than where on the keyboard I need to hit a key.

A quick duck search pointed me at https://toolsweek.com/how-to-test-a-diode-with-a-multimeter/ . It's been a long time since I needed to test diodes, but the instructions seem to match what I've done before.

If you choose SPC < to bring up the window that shows all open buffers, you can choose it and hit SPC b k (buffer, kill) as !GameWarrior@lemmy.world suggested. You can also choose SPC b d (buffer, delete) which is the same as SPC b k, or just hit SPC b and look at the options available to you.