Funny side project. This shows well many of the challenges one should expect when working on mixed reality projects. It's also nice to see how the ecosystem matured for such features in the browser.

Interesting use of database templates and memory disks to greatly speed up test executions.

This is definitely an ambiguous term. You need to know where stand the people employing it in order to figure out the exact meaning of "root cause".

A good reminder that mental health can be hard to keep in check in our profession. Pay attention to how you feel, anxiety is a sneaky foe. Lots can be done to improve if taken care of early enough.