If any, you can use e.g. 'make flash ESPPORT=/dev/ttyUSB1' to flash to a certain port without needing to run 'make menuconfig'. That should stop the entire project from recompiling. Moreover, if you run 'make -j', the process likely speeds up as the process will use multiple cores. Thanks, using 'm...

*** UPDATE *** Compiling can be speed up with 'make -j', which uses all of my cores, neat! Still unanswered: Is there an IDE for esp-mdf with intelli-sense? How do i add custom libraries such as the Adafruit_Neopixel https://learn.adafruit.com/adafruit-neopixel-uberguide/arduino-library-use lib? ** ...