How to use mouse.hit.LookVector as a CFrame? (for a stone attack)

Hi, I'm scripting a stone attack for my magic ffa game, I'm good at this sorta thing but you could search the entire planet and still not find a scripter my level who's as awful at CFrame as me.

So, I was wondering. How would I turn a vector3 into a CFrame?

Here's a server script that handles the attack thing:

script.Parent.OnServerEvent:connect(function(player, mouse)
	if game.Players[player.Name].Character.HumanoidRootPart:FindFirstChild("AimerGyro") then
		print("aiming")
		local gryo = game.Players[player.Name].Character.HumanoidRootPart:FindFirstChild("AimerGyro")
		gryo.CFrame = mouse
	else
		print("making")
		local g = Instance.new("BodyGyro")
		g.Name = "AimerGyro"
		g.Parent = game.Players[player.Name].Character.HumanoidRootPart
	end
end)

To clarify, that mouse variable is mouse.hit sent over from the client.

And here is that client script:

local uis = game:GetService("UserInputService")
local equipped = false
local attacking = false
local debounce = false
local debounce2 = false
local mouse = game.Players.LocalPlayer:GetMouse()

script.Parent.Equipped:connect(function()
	equipped = true
end)

script.Parent.Unequipped:connect(function()
	equipped = false
end)

uis.InputBegan:connect(function(input, gp)
	if gp then
		return
	else
		if input.KeyCode == Enum.KeyCode.Q and not attacking and not debounce then
			attacking = true
			debounce = true
			
			while attacking do
				if attacking then
					script.Parent.StoneQ:FireServer(mouse.hit)
				else
					break
				end
				wait(0.1)
			end
			-- charge
			print("charging")
			wait(4)
			debounce = false
		end
	end
end)

uis.InputEnded:connect(function(input, gp)
	if gp then
		return
	else
		if input.KeyCode == Enum.KeyCode.Q and attacking and not debounce2 then
			attacking = false
			debounce2 = true
			
			-- release
			print("released")
			wait(4)
			debounce2 = false
		end
	end
end)