Ok so what advantage does that give you? The idea of PKI is that your identification is tied to your machine. Why are you unnecessarily conflating authorization with authentication?
GitHub recommends using a single account, according to their website[0]... I get that it could be seen as a security concern, but I don't know if it's crazy. I only accept a physical key as 2FA, and you can revoke SSH keys from your account if your development machine is ever stolen or missing.
