jecs/demo/src/StarterPlayer/StarterPlayerScripts/systems/syncMobs.luau

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local blink = require(ReplicatedStorage.net)
local std = require(ReplicatedStorage.std)
local ref = std.ref
local world = std.world
local cts = std.components

local function syncMobs()
	for _, id, cf, vel in blink.SpawnMob.Iter() do
		local part = Instance.new("Part")
		part.Size = Vector3.one * 5
		part.BrickColor = BrickColor.Red()
		part.Anchored = true
		local model = Instance.new("Model")
		model.PrimaryPart = part
		part.Parent = model
		model.Parent = workspace

		ref("server-" .. id)
			:set(cts.Transform, { new = cf, old = cf })
			:set(cts.Velocity, vel)
			:set(cts.Model, model)
			:add(cts.Mob)
	end
end

return function(scheduler: std.Scheduler)
	local phases = scheduler.phases
	local system_new = scheduler.systems.new
	system_new(syncMobs, phases.RenderStepped)
end