SchemNexus

Place a Schematic Nexus block, mark out what you want in the GUI, and the server saves .schem files on a timer. Pull them in with WorldEdit or FAWE when you want to paste stuff back in.

What it does

The block. Right-click as an admin, set your two corners (offsets are right / up / back from how the block faces), pick a paste origin and filename. Stack multiple copies along the back axis with a gap if you need repeats. Writes .schem files that WorldEdit and FAWE understand.

On a schedule. Flip export on and it runs from config/schemnexus.json (every minute out of the box). It loads chunks in small bites so a huge build does not freeze the server.

Export now. Skips waiting for the next cron tick and runs the same export job for just that nexus.

Check. Closes the menu and draws boxes in the world so you can see if you got the schematic area right.

Saving. Each nexus is tracked in SQLite in the world folder. Break the block and that entry is marked dead.

Requirements

• Minecraft 1.20.1
• Fabric Loader
• Fabric API

Recommended

• WorldEdit or FastAsyncWorldEdit

Optional

• LuckPerms if you want to hand out schemnexus.admin properly

Setup

1. Drop Fabric API and SchemNexus in the server mods/ folder. Boot once so config/schemnexus.json exists.
2. Put SchemNexus on the client too.
3. Schematics are saved in in schemnexus-exports/schem/ unless you point exportRoots.SCHEM at something like config/worldedit/schematics. Stacked setups get name0.schem, name1.schem, and so on.
4. OP yourself (level 4+) or get schemnexus.admin, grab a Schematic Nexus from the creative tab, place it, fill in the panel, hit Done. Turn export on for the timer, or Export now if you want the schematic now.

Files

• config/schemnexus.json
• export folder from exportRoots (default schemnexus-exports/schem/)
• <world>/schemnexus/schemnexus.db

Config

Worth tweaking: exportCron, exportBatchSize, exportChunksPerTick

Credits

• Haydn for the idea.
• Sean for beta testing.
• Tenne for the model and icon.