Just Compatible

The mod targets servers that move between several Overworld-like dimensions and need stored data to follow them. Its compatibility layer recognizes dimensions by their vanilla effects instead of hardcoded world identifiers, so Overworld-, Nether- and End-like dimensions are handled by what they do. Integrations activate only when a target mod is present, and capability detection replaces fixed version checks, so the mod does not hardcode dimension names or rewrite chunks, inventories or level.dat. Bountiful Baubles is one supported integration: after a player logs in or travels between dimensions, the mod reconciles stale player attributes and reapplies rolls on equipped curios.

Among the supported integrations, only the Waystones integration carries out migration that is saved permanently. Before applying any change it always writes a JSON backup, and it reports ambiguous or unknown migration records without touching them. Server owners can run a scan with diagnostics, or a dry run for Waystones, and then a repair that applies only unambiguous migrations. Install the server together with Core; vanilla clients connect normally.

The mod is published for NeoForge on Minecraft 1.21.1 only. It runs on the server alone, so players need nothing extra to join. Source code and the issue tracker are public.