Show HN: Cowyo: jot notes and lists – with encryption and self-destruction

I made this. I'd love feedback about this project.

This was inspired by http://notepad.cc and http://shrib.com, but with features that I've always wanted in a notepad system (encryption / page locking / math support / practical lists). Its written in Golang and designed to be simple and light weight so it runs off a Raspberry Pi server.