Please also upload the CraftBlock-Server-vX.Y.Z.zip to CurseForge like it's done for this modpack (→ Minecraft 1.12 Server Packs). A button "Zusätzliche Datei hochladen" can be found on every detail page for a "normal" (client) version file (e.g.).

Or just document that it can be found on github.

Training people to leave curseforge is always a good thing 😅

I updated the curseforge description, @joblo2213 is right.