[CentOS] Creating a personal repo

Hello,
	I'm wanting to create a yum repo for what is at this point rpm
development for personal use, i might eventually open it up but right now i
have some rpms i need to debug. I've installed createrepo but the docs i've
read indicate that i have to install the base distros rpms, in repos i've
seen via a webview they only had packages that they built in the repo.
Thanks.
Dave.