Thank you for your comment and we love your take on this! Coming to what we think about John Carmack's arguments against building a custom XR OS at Meta,

It's kinda hard to have a single answer for this but we like to think that this project did not work out for META particularly. We believe that it was perhaps not the right project for someone like META who already had other on-going projects to deal with. Although a setback, it doesn't necessarily mean there's a fault in the idea itself. We'd like to address the problems that were mentioned with the development of a custom XROS -

1) Cost : We've managed to do everything up until this point at the cost of 0$. However, we're in initial stages and expect to incur costs in the next few months. But those costs are mostly associated with building the company and our own line of products, not in the actual development and engineering of the OS. We've managed to remain extremely cost efficient and intend to continue that practice.

2) Burden on third-party/new developers : We anticipated this problem right when we started building the OS. Over time, we've come up with plans to encounter it and are currently working on making sure that the barrier to enter and create applications and software on Xeneva remains as non-existent as possible. We intend on making the process easy, try to bring no learning curve whatsoever, thus allowing developers to port their existing software and applications to XenevaOS conveniently. Also create a beginner friendly environment so that new programmers are able to create an app on XenevaOS from scratch easily.