I use the boards STM32F429ZI (https://www.st.com/en/evaluation-tools/nucleo-f429zi.html) and STM32F401RE (https://www.st.com/en/evaluation-tools/nucleo-f401re.html). They both have a built in debugger/ST-link.
I plan on making custom boards using the same chip F429ZI /F401RE with the debugger built in the nucleo boards. is it plug and play? or is there anything I need to change on the online compiler to be able to use the custom boards.