For testing on my Libra Colour, I used the install script and the OCP-KOReader-v2024.04.zip to do the basic install and then unpacked the
latest nightly (think it was -32) over the koreader install directory before safely ejecting. After the install finished, I used the KFMon-uninstaller to remove KFMon. So far, my limited testing hasn't seen any issues.