hopefully this can be used to support end-to-end encryption.
Pressing the "+" next to matrix in settings allows you to enter a homeserver, username and password to enable matrix and generate an access token.
PIN is verified but not used currently. Works a little different than the others, you input your matrix user ID and then the PIN is sent to you. The bot doesn't support E2EE, so the bot being the first one to message ensures the chat is unencrypted.