ohhh turns out the issue with decrypting the harddrive using LUKS or
entering the lock screen password wasn't related to anything except my
keyboard not registering some keys the odd time.
definitely a my-keyboard thing, and not debian then. i had to replace
this laptop's keyboard in the past, and i struggled hard getting this
one in because the one they shipped me was warped and bent as fuck, so
i'm not surprised that there are some possibly broken shit with this
lol.