OTA Blynk combination code with Arduino IDE

I am struggeling to combine the OTA handlers with the blynk script. I could only find parts of code
I am new to the OTA part and I am finding it hard to find out which library to use for the Arduino IDE . This also makes it harder to find a right piece of code . Did I overlook some answers on the forum here which might help ?

Yes, lots. Search for β€œOTA”.