Couldn't find any info on this but when I launch pico-8 on Raspbery Pi 4 I get this error.

pi@raspberrypi:~/pico-8 $ sudo ./pico8
./pico8: error while loading shared libraries: libsndio.so.6.1: cannot open shared object file: No such file or directory

Raspbian Version Info:
Version:June 2019
Release date:2019-06-20
Kernel version:4.19

I wasn't totally surprised it didn't launch as I think there is new version of Raspbian for RPI4 so there could be issues.

I tried running it on a Pi2 (I think it was) that I had and it launched fine there so this isn't necessarily a problem that I need a solution for (as I can probably just use the much slower 2 for a bit), though it would be nice to know if there was an easy fix. I'm mostly reporting it just because I came across it and didn't see it reported.