+1. I wrote some near flight software for an instrument using Ubuntu with a RT patch on modern hardware, in parallel with another team that took the traditional

+1. I wrote some near flight software for an instrument using Ubuntu with a RT patch on modern hardware, in parallel with another team that took the traditional approach. Not to brag, but our “undeterministic” system ran far more reliably than the real time one that didn’t have the advantage of modern application libraries. Plus, even though we had that pesky operating system in the way, we ran on blazing fast modern architectures and were actually more deterministic than the slow as hell hardware we were benchmarking against. I’ve seen the same pattern a few other times. Slow, hand built, rad hard systems CAN be more stable and demonstratively safer... but that is rarely the case and the effort required to get such a system right is orders of magnitude greater than using standard “undeterministic” systems. That engineering effort can be better spent innovating and building fundamentally more advanced solutions. Just my experience. Just my opinion