VoxySync

VoxySync sends MCA region files that the server has already generated to players, feeding them into the Voxy level-of-detail full-map view. Transfer can cover the player's current dimension, or only regions within a set number of blocks around the player, nearest first. A radius mode is available as a safe option, and the default mode is set in the server config.

Transfers are rate-limited and chunked, with a default of 1 MB/s per player, and incremental sync updates regions that have changed. A file cache lets an interrupted transfer resume, and progress is shown in the action bar. If Voxy is not installed on a client, the mod falls back gracefully. Server operators manage it with the voxysync command, which covers status, enable, disable, mode, radius, all, sync, and devtest, and the commands require operator permission.

Fabric API is required. The mod targets Minecraft 1.20.1 on Fabric only, and it needs the Voxy 1.20.1 port on the client. It is client and server, so the server runs it and each player who wants the full map installs it as well. The code is open source under the GNU General Public License v3.0 only.