Comment by meoleo

TLA+ and Coq are too hard for most SAAS applications. Tried FizzBee (https://fizzbee.io/tutorials/getting-started/) and P (https://p-org.github.io/P/whatisP/)? These seems quite practical.

Coq/Rocq are obviously much harder to use, and I mostly see embedded systems engineers use them. TLA+ is somewhat easier, and being used in a number of cloud infrastructure companies (AWS, MongoDB, Confluent etc).

Obviously, if you are building a simple CRUDL app, these tools don't help at all.