I am developing a small electronic product which, if all works fine, I think about producing and selling in small numbers.
Currently I use an ESP32 DevKit for the development. That is the ESP32 development board with "everything" included like power regulator, USB connection, etc. https://www.aliexpress.com/item/4000093185394.html
The schematic for that DevKit is published here https://www.espressif.com/en/support/download/documents
In theory, when I want to build my own product I could:
A) Use all or most of the PCB design of that DevKit board and add the few extra components which I need all in one PCB.
B) Or I could design my own PCB and solder the DevKit board on my PCB which would include only a few extra components.
B is much easier for me because the DevKit boards are ready and cheap available.
Is it good practice to do that? Or are there good reasons to put everything on one PCB including the parts which are now on the ESP32 DevKit board?