Not entirely related, but here is someone's exploration of the TOWNSOS's graphical shell.
https://gekk.info/articles/towns-tour.html
This article at Computing History also gives some context:
https://www.computinghistory.org.uk/det/60616/FM-Towns-2DF/
It seems that developers had a choice of either licensing the TOWNSOS to include on their bootable CDs or requiring that users boot from a floppy (presumably included with the machine).
This GitHub repo is for use in the latter context with modern freeware games whose developers wish to avoid a dependency on copyright Fujitsu code.