Modularity has been around for a while, but there are a lot of things that you might not know about it. The talk will contain a general introduction to modularity, including standard use cases and alternative ways to use modularity. I will try to answer how to deploy a module that will not hide non modular packages. Or how to create a module that rpms will be installable from a repository without yaml metadata. Finally, I will describe ways to build a module with all the rules baked into RPM (not requiring external metadata, modular filtering or module.yaml) and keeping compatibility with current modular implementation (no changes required in RPM, DNF). If you don’t believe me, then allow me to show you the way. This talk is recommended for package maintainers and people involved with Fedora/RHEL infrastructure.