An open source, self hostable, cross platform, and hackable garden tracking app!
A self-hosted service that pings webhooks or other URLs on a user-defined schedule. Works a little bit like cron. Can even do things every X minutes or hours, like cron.
Written in PHP, uses SQLite.
If you don't want to set it up yourself: https://hookless.co/
Enter the BART station you're at and the one you want to go to, and it'll figure out how many stops you need to go backwards to get on the train going the right way in relative comfort.
Bookmark this on your phone.