> ## Documentation Index > Fetch the complete documentation index at: https://docs.orbitroblox.xyz/llms.txt > Use this file to discover all available pages before exploring further. # Example An example of a simple page that shows "Hello world!". Start with the structure, since all we need is a window that shows hello world we need a client-side script to create it and a frame that has the content. Image *The class is decorative* Now for the code, we need to make sure the API has permission: ```luau theme={null} return function(api, ext) if not api.navkit then warn("Unable to access Navkit, aborting.") return end end ``` Now apply a permission too since this will just error every time: Image Good! Now to actually create the window we need a category first. In this example we'll just reference a category made by Orbit, `orbit.main`. ```luau theme={null} return function(api, ext) if not api.navkit then warn("Unable to access Navkit, aborting.") return end local window = ext.window api.navkit.newButton( "helloWorldButton", -- id { category = "orbit.main", name = "Hello World", -- what is displayed on the button icon = nil, -- optional, nil cus im lazy layoutorder = 99, -- optional, put it as last clone = false, -- optional, we don't want to clone our window }, window ) end ``` And done! That's it. Image
Have fun creating extensions!
Please follow [our guidelines](/extensions/rules) when doing so.