So you want to deploy FN-DSA ↗ ↖

For the most part, I agree with my fellow cryptography engineers that the best approach to using FN-DSA is to not. However, prohibition is a failed approach, whether we are talking about drugs or about cryptography, so, in the interest of harm reduction, here are the essential caveats for anyone who wants to use FN-DSA, so that they can do so as safely as possible.