minetest.register_privilege("server_say", "Player is able to make the 'server' say messages")
minetest.register_chatcommand("say", {
params = "<text>",
privs = { server_say = true, },
description = "Make the server say something.",
func = function(_, text)
minetest.chat_send_all("[Server] " .. text)
end,
})