I used AWS cognito for a startup. I wouldn't do it again

IMHO not rolling your own auth is asking for stuff like this to happen.

>> and even rawdogged a custom JWT system ...

This may now mean something along the lines of "struggling to grind through..." but is based on the original meaning of having sex without a condom, typically with misogynist overtones. You might want to avoid it for this style of writing and audience.