This is totally the dream. Tangentially related, I wish I had fine grained control over whether or not websites can access (or block) pasting, keybindings, etc

This is totally the dream. Tangentially related, I wish I had fine grained control over whether or not websites can access (or block) pasting, keybindings, etc. I think currently you’d have to write an extension or userscript to monkey patch the functionality in javascript land before the site executes.