https://pasta.life/

I’m by no means an espresso expert ( I currently don’t actually own an espresso machine … )

But I believe pressurised baskets are meant to account for coffee that isn’t ground fine enough, the added pressure is making up for a puck that doesn’t provide enough resistance to the water. It may be that you’re able to grind fine enough that the added pressure from the basket is causing water to/ coffee to escape out the sides.

Maybe try grinding courser ( like pre-ground / pour over course )?

Mine keep breaking, can you suggest any strong brands?

I appreciate you taking the time to implement this and answering some questions! I have a follow up question- What’s the benefit of using asymmetric encryption here? You’re not signing the message ( you probably should imo ) and you don’t appear to support sharing encrypted notes ( i.e a user provides one or more additional public keys that a note is encrypted for ). You’re basically doing symmetric encryption with the pain of key management

It’d be simpler ( from a user and code perspective )to use symmetric encryption ( something like aes-256-gcm or ChaCha20-Poly1305 for example ) and use key wrapping to avoid encrypting user data directly and you’d have stronger crypto as a result

You’re right that PGP is a valid encryption method but it’s not very popular in the modern day because it’s very hard to get right. Latacora has a great post on the PGP Problemand the Soatok blogs that u/litchralee linked are well worth a read too