SomeFreeRTOSExamples/examples/ex0_no_freertos/main.c

#include "pico/stdlib.h"
#include "hardware/uart.h"

int main() {
    // Initialize stdio with USB support
    stdio_init_all();

    // Delay to allow USB connection setup
    sleep_ms(2000);

    while (true) {
        printf("Hello, World!\n");
        sleep_ms(1000);
    }
}