X.509 needs to be replaced with a simple key you get for free during domain registration. Then the blast radius of key compromise is a single domain name and not the whole internet.
830 karma · joined April 6, 2013
As far as I'm aware, that's not possible because of how the git protocol is designed.
I also recommend specifying model name and version so the maintainer knows upfront the level of slop they are dealing with.