This was published on January 23, and it contains all the information you need to establish this kind of test in your own lab. And while I'm not an expert in this area, the controls done to ensure avoiding false positives based on other viruses seem pretty thorough to me. And this validation is the part that I would suspect to be one of the more time-consuming and important aspects.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6988269/
This was published on January 23, and it contains all the information you need to establish this kind of test in your own lab. And while I'm not an expert in this area, the controls done to ensure avoiding false positives based on other viruses seem pretty thorough to me. And this validation is the part that I would suspect to be one of the more time-consuming and important aspects.