Cronjob

sudo apt update
sudo apt install cron
sudo systemctl enable cron
crontab -e
# add the following line
0 22 * * * sudo python3 src/main.py >> log.txt 2>&1

References

1. https://www.digitalocean.com/community/tutorials/how-to-use-cron-to-automate-tasks-ubuntu-1804
2. https://stackoverflow.com/questions/22743548/cronjob-not-running
3. https://unix.stackexchange.com/questions/52330/how-to-redirect-output-to-a-file-from-within-cron