You have to do that yourself—this is only the editor component. There's things like https://icecoder.net/ https://icecoder.net/ that provide a more web-ide like

You have to do that yourself—this is only the editor component. There's things like https://icecoder.net/ https://icecoder.net/ that provide a more web-ide like thing on top of CodeMirror, but I don't know them intimately so I don't know which one to recommend.