My SonaType Nexus instance is hosted at https://mvn.greemdev.net.
Here you can find Gommon, along with a valid .NET package source so you can use it in your projects.
You can also find KCommands, hosted as snapshots and releases, in maven repositories.
bl3 repository, for hosting Borderlands 3 Hotfix Mods so I can let other people use the niche mods I make.
Other than that, there isn't much the Nexus instance I host can offer other than letting anyone download my libraries or use my mods.