Adds the ability to provide the --write flag in addition to the --serve flag via
a new option, services.sshServe.write.
A user can now share their system as a remote builder with friends easily as
follows:
{
nix = {
sshServe = {
enable = true;
write = true;
keys = ["ssh-dss AAAAB3NzaC1k... alice@example.org"];
};
};
}
Co-authored-by: Raphael Megzari <raphael@megzari.com>
