Repomaker - Create your own F-Droid repo
F-Droid.org is just a repo out of hundreds of repos created by individuals all around the globe. With the tools of F-Droid, everyone can create their own repo.
with Repomaker, you are able to create your own repo and do not need to have any special knowledge to do so. Check out the installation guide for information on how you can install Repomaker on your device.