How to build and flash to ESP32?

[proDev-Theron]

Hi everyone, I just bought my ESP32 and I want to make a wifi-repeater and after 3 days of searching this is the closest I got to have a working one. https://github.com/jonask1337/esp-lwip/blob/2.0.3-esp/README.md but I don't know how to build the project. Can anyone please help me step by step? I already installed esp-idf and I'm sure it's working. I already replaced original esp-idf's lwip folder by his. I want to build the project and flash it to ESP32. Somebody please. Thank you very much!

[sukesh-ak]

https://github.com/sukesh-ak/esp32_nat_router