Luanti server

Modified from linuxserver version, because the official version doesn't support non-Linux hosts somehow?

The main config file (LUANTI_SERVER/main-config/minetest.conf) may need some changes after it is generated to better support starting your server:

name = admin                   # Sign up as this user name to have admin rights.
secure.http_mods = digistuff   # optional feature
enable_tnt = true

Note that admin rights are not the same as in-game permissions, you still need to use /grantme all to get all permissions, and /revokeme creative if you don't want creative mode.

Worlds cannot start with a number or have spaces in their name, and can only be selected by path for some reason.

Schematics

Assuming WorldEdit is installed, you can move things between worlds using schematics:

Select corners of a volume by standing where you want them and running //pos1 and //pos2. The selection box will be at your feet.
Save schematics with //mtschemcreate SCHEMATIC_NAME.
Schematics are placed in a world's schems directory. Copy them and rename them as necessary.
Use //pos1 to select a start point, and //mtschemplace SCHEMATIC_NAME to place it.