Hi,
I use vscode ide with platformio and a bluepill.
I tried the Simple RTC example of the library.
After reset or disconnecting the power source the date is set back to 1/1/00 but the time keeps going on.
i changed something in the sketch. After a reset and the init of rtc the first print of the date is wrong.
After that the program sets a new date and time.
i attached the scetch and the platform.ini files.

main.txt

platformio - ini.txt