This video is on implementing Arduino core on to 32 bit STM32 BLUEPILL, so that you can use Arduino IDE to program a 4 times faster STM32 32 bit Blue pill board.
Arduino IDE File Preferences paste the board link from :
http://dan.drown.org/stm32duino/package_STM32duino_index.json
ST LINK debugger dongle can also be used to upload code through Serial Wire Debug pins.
ST LINK Driver here:
https://www.st.com/en/development-tools/stsw-link009.html
BLOG :
https://alselectro.wordpress.com/2018/11/18/stm32f103-bluepill-getting-started-with-arduino-core/