README: update for RPiOS note

README.md

@@ -32,6 +32,11 @@ Note that I list some dependencies below that the Arch package already has liste
 
 2. Users of Ubuntu wishing the kodi user to access devices on `/dev/ttyxxxx`, will need to edit `/etc/sysusers.d/kodi-standalone.conf` and uncomment the line adding the kodi user to the `dialout` group.
 
+#### Notes for Users of RPiOS
+To use this with RPiOS requires a few extra steps.
+1. Set the boot preference to boot to the console, see https://github.com/graysky2/kodi-standalone-service/issues/37
+2. Replace `/usr/bin/kodi` with vanilla upstream's version.  See [here](https://github.com/graysky2/kodi-standalone-service/files/7888328/kodi.txt) for an example that is known to work with RPiOS as of Matrix-19.3.
+
 ## Usage
 Simply [start/enable](https://wiki.archlinux.org/index.php/Systemd#Using_units) the requisite service.