im curious too as i think this causes a username collision with a username i have set in home-manager

I would love to change username for both home-manager and making outbound ssh easier

Yeah setting the username would help a lot of people. What are the maintainers thought on this?

Should one of us just open a PR?

I don't remember/know why it's readonly; feel free to try and see what breaks.

Outbound SSH is kind of of a weak argument, because there's programs.ssh.matchBlocks.<name>.user. I don't know what "set username in home-manager" means, so it'd be nice if somebody explained it to me.

i just set readOnly to false in my fork and set the userName variable with lib.mkForce in my config and everything works as far as i can tell.