Ok after a good cry, I've recovered. Will look at older revs.
Good news here! It runs bog standard linux too! Currently running devuan beowulf on it.
Building now with sse2neon.h headers and it looks like it might work.
https://github.com/DLTcollab/sse2neon
It's a bit more involved. The Simd.cpp wants AVX stuff, which might be supplyable with:
https://github.com/kunpengcompute/AvxToNeon
Which does build on my box and passes tests
AVX2NEONTest Complete: Passed 335 tests : Failed 0
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Since we won't be getting opengl 3.3 soon (all that gl 4 compute stuff would need backporting), I'll look at the last TDM that uses opengl 3.1.
Can anyone suggest a mission with low amount of geometry in the assets? I'd be wanting around 130k triangles or lower.
Cheers!