Yep, you can try out our software at
https://github.com/SimulaVR/Simula on the HTC Vive and Valve Index platforms.
If you don't have one of those headsets, there are some videos of people (whom we have no affiliation with) on YouTube testing it out: https://youtu.be/8gVLF8SnK84?t=424 Here's also (a pretty old) video of me hacking on Simula, in Simula: https://youtu.be/FWLuwG91HnI.
It's also true that we're more focused on hardware right now. We plan on reverting more towards software development in 2023. For more details: https://github.com/SimulaVR/Simula/issues/180#issuecomment-1...
Some things we have planned to implement include VR window tiling and some other UI stuff.