@kl I wrote down a few notes about my laptop installations in the 9gridchan wiki, yes. Pretty sure I also described wifi stuff there.
TL;DR: for intel wifi, get the BSD drivers for your card, place in /lib/firmware, then build a new kernel and install it.
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko