Describe what you are planning to operate. This will tell you which areas it raises, and why it raised them.

It will not tell you whether your deployment is lawful. Nothing that runs in a browser can do that, and a tool that implied otherwise would be worse than no tool at all. What it can do is stop you from finding out about an entire area of responsibility six months after you started taking money.

Read Self-hosting first if you have not. The short version: when you run Erycina, you are operating the service, and you are the one who has to work out what that requires where you live.