Custom Evennia launcher command option for maintaining the grid in a separate process than the main server (since this can be slow).
To use, add to the settings:
You should now be able to do
evennia xyzgrid <options>
Use evennia xyzgrid help for usage help.
Evennia launcher command. This is made available as evennia xyzgrid on the command line, once added to settings.EXTRA_LAUNCHER_COMMANDS.