@kolla
I see your point. Sometime ago, i remeber i created something like 68000 OS 3.9 by adding 3.1 stuff and third party stuff, never too usable though. But, yes you are right, most of todays stuff comes for 020+. So anyway, where did you get to with your OS3.9 on MiniMig project?
It works?
The kickstart I've created is fully updated with all relevant 3.9+ updates, like ram-handler, shell, fastfilesystem, scsi.device, bootmenu etc, and it boots fine. Most of programs in C: also work, with some exceptions (one is odd one is MakeDir - what could MakeDir benefit from 020+??), and also most libs work, and most datatypes. Workbench.library and icon.library also work, as long as I dont update to those beyond BB2. MultiView also works.
What doesnt work are all the ReAction programs of OS3.9. I went through all the classes and replaced those who caused crashes with those from older ClassAct, and that works well for all non-OS Reaction/ClassAct programs, but the big obstacle for the OS programs is the 020+ libs:resource.library it seems.
Oh, and AWNPipe works too, albeit rather slowly
VincEd also works, but I think I downgraded to a version from Aminet for it to do so, I'm not quite sure. Anyways, it's a bit too much for the poor thing, so I rather use regular shell + KingCON, or ZShell from aminet. On my wish list though, is ROM-able KingCON for 68000, so that it can be dropped in for CON: and RAW: directly rom kickstart. This is possible with KingCON 1.8 that comes with Amikit, but that one is 020+ only.