I have a T43, slowly working on a VESA driver for NeXTSTEP 3.3 (Yes there is a driver for OpenStep 4.2).

Using Ghidra and the source that Apple released. Final set up will be, NeXTSTEP3.3, DOS6.22 (AutoCAD R12, Matlab), WinXP (For Encarta 95 and Mindmaze) and NetBSD.