If your using the Arduino IDE, you can download the core for the NanoEvery\ATmega4809 and check if the program you have (and the sensor libraires used) compiles OK and how much space the entire program uses.
If your using the Arduino IDE, you can download the core for the NanoEvery\ATmega4809 and check if the program you have (and the sensor libraires used) compiles OK and how much space the entire program uses.