Roast the security of my app

im aiming to make a chat app secure as theorhetically possible as a webapp. for transparency its open source. id like the user experience to be as close to possible to a regular chat app. its important to note; there are limitation with p2p and webapps such that messages cant be sent if the peer isnt connected.

to keep this post brief, please take a look at the readme. it has all the information and links.

i dont think its ready to replace any app or service, but id love to get feedback on what you think would make it so you would use it more than once.