Here lies Anki Vector's shared codes.
Credits: Takaya Suzuki
Inspired by Colin Twigg's alarm (https://github.com/RecognitionDesigns/Vector-Alarm-Clock)
Navigate through the directory, then type in the terminal
chmod +x hourly-alarm.py
Once done, do the next steps and save.
crontab -e
This will set to execute the python script every hour
0 * * * * cd vector_project/vector-shared-codes/hourly-alarm/ && /usr/bin/python3 hourly-alarm.py >> /var/tmp/hourly.log
Credits: Ashleigh Bartlett-Needham https://forums.anki.com/t/vector-with-attitude/34355