I blotted up as much coffee as I could with some napkins and kept taking notes on the soaked keyboard. Worked like a charm. After drying it out, a few keys stopped working so I bought a replacement keyboard for ~$20 and swapping it out was rather fast (from memory).
I use an M1 MBP now, but I still have that thing in the basement. It still works, and I loved it. I don't miss carrying it around though (or the hilariously short battery life due to forcing discrete GPU mode so I could dock it for multiple monitors at home).