my first script LY GUI

-- LocalScript: Place this in StarterPlayer > StarterPlayerScripts

-- SERVICES
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Lighting = game:GetService("Lighting")
local RunService = game:GetService("RunService")

-- PLAYER
local player = Players.LocalPlayer

-- REMOTE SETUP
local remoteEvent = ReplicatedStorage:FindFirstChild("FE_GUI_Action") or Instance.new("RemoteEvent")
remoteEvent.Name = "FE_GUI_Action"
remoteEvent.Parent = ReplicatedStorage

-- SERVER HANDLER (Runs on server using BindableEvent simulation)
if RunService:IsServer() then
	local flyingPlayers = {}

	local function getRootPart(character)
		return character:FindFirstChild("HumanoidRootPart") or character:FindFirstChild("Torso")
	end

	remoteEvent.OnServerEvent:Connect(function(player, action)
		local char = player.Character
		if not char then return end
		local root = getRootPart(char)
		if not root then return end

		if action == "TeleportToSpawn" then
			root.CFrame = CFrame.new(0, 10, 0)

		elseif action == "PrintHello" then
			print(player.Name .. " clicked Hello!")

		elseif action == "ToggleFly" then
			if flyingPlayers[player] then
				local bv = root:FindFirstChild("BodyVelocity")
				if bv then bv:Destroy() end
				flyingPlayers[player] = nil
			else
				local bv = Instance.new("BodyVelocity")
				bv.Name = "BodyVelocity"
				bv.Velocity = Vector3.new(0, 50, 0)
				bv.MaxForce = Vector3.new(0, math.huge, 0)
				bv.P = 1250
				bv.Parent = root
				flyingPlayers[player] = true
			end

		elseif action == "ChangeSkybox" then
			for _, v in pairs(Lighting:GetChildren()) do
				if v:IsA("Sky") then v:Destroy() end
			end

			local sky = Instance.new("Sky")
			local skyId = "rbxassetid://113346754"
			sky.SkyboxBk = skyId
			sky.SkyboxDn = skyId
			sky.SkyboxFt = skyId
			sky.SkyboxLf = skyId
			sky.SkyboxRt = skyId
			sky.SkyboxUp = skyId
			sky.Name = "CustomSkybox"
			sky.Parent = Lighting
		end
	end)
end

-- GUI CREATION
local gui = Instance.new("ScreenGui", player:WaitForChild("PlayerGui"))
gui.Name = "LY_GUIv3"

local frame = Instance.new("Frame", gui)
frame.Size = UDim2.new(0, 300, 0, 280)
frame.Position = UDim2.new(0.5, -150, 0.5, -140)
frame.BackgroundColor3 = Color3.fromRGB(30, 30, 30)
frame.BorderSizePixel = 0
frame.Active = true
frame.Draggable = true

local title = Instance.new("TextLabel", frame)
title.Text = "LY GUI v3 (FE Safe)"
title.Size = UDim2.new(1, 0, 0, 40)
title.BackgroundColor3 = Color3.fromRGB(20, 20, 20)
title.TextColor3 = Color3.new(1, 1, 1)
title.Font = Enum.Font.SourceSansBold
title.TextSize = 20

-- BUTTON FUNCTION
local function createButton(name, posY, callback)
	local btn = Instance.new("TextButton", frame)
	btn.Text = name
	btn.Size = UDim2.new(1, -20, 0, 35)
	btn.Position = UDim2.new(0, 10, 0, posY)
	btn.BackgroundColor3 = Color3.fromRGB(50, 50, 50)
	btn.TextColor3 = Color3.new(1, 1, 1)
	btn.Font = Enum.Font.SourceSans
	btn.TextSize = 18
	btn.MouseButton1Click:Connect(callback)
	return btn
end

-- BUTTONS
createButton("Teleport to Spawn", 50, function()
	remoteEvent:FireServer("TeleportToSpawn")
end)

createButton("Say Hello", 95, function()
	remoteEvent:FireServer("PrintHello")
end)

createButton("Toggle Fly (R6/R15)", 140, function()
	remoteEvent:FireServer("ToggleFly")
end)

createButton("Change Skybox", 185, function()
	remoteEvent:FireServer("ChangeSkybox")
end)

createButton("Close GUI", 230, function()
	gui:Destroy()
end)