Arli is a rather simple and easy to use command-line tool which offers several indispensable features that help with Arduino project development, in particular for much larger projects with many dependencies and external libraries. What's more, is that projects generated by Arli's generate command...
You can install these libraries in the Arduino Library Manager. Open the Library Manager by clicking the Library icon at the left sidebar. Search forESPAsyncWebServerand install theESPAsyncWebServer by ESP32Async. Then, install the AsyncTCP library. Search forAsyncTCPand install theAsyncTCP by ...