escripts does not support accessing content in priv directories. That rules out serving static files, running migrations, etc, right out of the box. They also don’t provide the same flexibility as Mix tasks, which provide different entry points and command line options. And at the end of the day, both Mix and Escripts are inferior when it comes to system configuration compared to releases.
So can you use escripts? Sure, you can, but they are inferior in almost every way compared to other options, so I don’t see the point of using them besides one-off scripts.
