Newbie question on flashing

[TPLindley007]

I have done a bunch with the ESP8266 but am not generally a hardware guy. For the Esp32, I have some dev boards and have ported my code and got things basically working. I have a couple of questions on the chip only that are probably pretty basic.

1. For the Esp8266 I created my own programming setup using a breadboard where I could just plug in a 8266 and program it. For the new SiP (is that right?) Esp32 chips, how do I create something I can just program? Like the way I am working with the dev chips?
2. If I want to create a custom circuit board, like I did for the Esp8266, what do I call the mounting system I need for the new chips? I'm assuming the same CAD software will know about that format, I just don't know anything about it.

Thanks for any pointers you can share. Sorry for the basic nature of these questions.