just boot up NCC and connect it with any NIS and I am in the network immediately.
Cannot be any simpler.
no, that's not simple.
boot,
connect...
fine for you and me, not for everyone. the average person won't "boot and connect to any NIS", believe me.
You don't need to boot or connect. You start NCC, enter your password and are done. Ready to go.
Obviously you need to configure it once but that doesn't have to stay that way.