Minecraft Schematica without Worldedit on server insert?

How to insert a schematic on a server without worldedit?

Have also Op

Not at all. How should this work without a corresponding plugin.

To create a schematic you need worldedit and to put it back somewhere, too. Alternatively, you can use fastasync, but this plugin also uses worldedit. I do not know another one.

What speaks against worldedit?