Anything that's available in your local repository can be added as a dependency in your Maven project, as if it were available for everyone. Just remember that any project using the dependency cannot be built by others that don't have the dependency.
I'd like to point you to https://search.maven.org/ and https://mvnrepository.com/. They both let you do the same thing (find available dependencies and their versions), which one to use is purely personal preference. I prefer the second, even though the first one is more "official".