perhaps some of you did not already know this: As of 6th July 2022, the current license holder of CP/M and its derivates (DR-DOS) placed the software under a truly free license.
Long ago, when Caldera DR-DOS was open source but no free software, Udo Kuhnt started a project called Enhanced DR-DOS. It includes enhancements to the DR-DOS Kernel source code from Caldera, supporting FAT-32 and a bunch of other stuff. This development is known under the name EDR-DOS. While Udo Kuhnt stopped developing EDR-DOS long ago, E. C .Masloch (aka ECM) continued to work on it in recent times.
EDR-DOS being free software and getting some love recently, I created a SvarDOS package for the current version maintained by ECM. It can be downloaded from my Nextcloud, until it is either included in the SvarDOS package repository (if Mateusz is interested in), or I finally manage to put some proper Website in place.
Instructions on how to switch to the EDR-DOS kernel and back to the default are provided in the package, along with a tool called DRSYS.COM, which is a modified SYS.COM from the FreeDOS kernel tree I compiled for use with the EDR-DOS kernel.
Perhaps someone is interested. I tested the kernel the last days. On my Pentium system, this works well. I think its always nice to have alternatives. Thanks to Mateusz for the excellent PKG tool.