Common server families
Vanilla stays closest to Mojang’s server behavior. Paper focuses on performance and plugin support, while Purpur builds on the Paper ecosystem with additional configuration options. Fabric is a lightweight mod loader; Forge and NeoForge serve broader modded ecosystems.
A plugin designed for Paper/Purpur is not automatically a Fabric or Forge mod, and a modpack built for one loader/version should not be moved to another without checking compatibility.
Runic support rule
The storefront can list a server type or loader as a supported one-click workflow only after installation, update, restart and recovery have been tested on the production stack. Exact supported versions will come from that validation rather than a hard-coded evergreen claim.