!!! info
These examples assumes that you've successfully [installed Roact](installation.md) into `ReplicatedStorage`!
Add a new `LocalScript` object to `StarterPlayer.StarterPlayerScripts` either in Roblox Studio, or via Rojo:
```lua
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local Players = game:GetService("Players")
local Roact = require(ReplicatedStorage.Roact)
local app = Roact.createElement("ScreenGui", {}, {
HelloWorld = Roact.createElement("TextLabel", {
Size = UDim2.new(0, 400, 0, 300),
Text = "Hello, Roact!"
})
})
Roact.mount(app, Players.LocalPlayer.PlayerGui)
```
When you run your game, you should see a large gray label with the phrase 'Hello, Roact!' appear on screen!