my chronicles today:
boot 1: pc starts, looks and sounds fine, I start browsing. after a minute, Firefox hangs. kill -9 does nothing. I find out that my sudo password does not work (?!)
I reboot. after 8 minutes of watching systemd try to shut down the system bit by bit, I finally hard-reset
boot 2: sudo works. network doesn’t. that is, the manager comes up, doesn’t complain, everything looks good, it just refuses to connect to wifi
boot 3: everything seems to be working. very suspicious