FOSS gamedev and creative worlds

How do you set a spawn point for everyone who comes to your server?

Erm, I think this can be done via a .lua mod, however, I will look into this.

Something like on respawnplayer, go to x,y,z.
It's very easy to make using the modding api.

I could have sworn there was a command in minetest.config like "set static spawn x.y.x" or something like that.