Would be nice to add a soft dependency also when posting a mod. It's not required but adds additional things if run together. I already have this for some of my mods. But can't add it as a "dependency " to force users to get it when its not needed. Hope you understand. Otherwise let me know and i try to be more thorough

Yeah, it was discussed today and it would be good to have it documented on the Hub page, but it would also be in the manifest->dependency manager, so that mods are loaded in correct order. For example, Herman uses my mining panel, but his building also works without. So his mod should encourage my mod to load before his, but not declare a hard dependency.

Mods have optional dependencies, specified in the manifest as optional_mod_dependencies, is that what you are looking for?