When I read the Show HN title, I figured this would would scatter seeds on a virtual map and when you run it "waters them" so you can see a garden on a map similar to Strava.
I can actually add this in future updates. Where you run and the path will be shown having flowers and grass and it will look like each step you took planted something and then you can share it. I am currently working on the share run feature.
The idea of the garden is also the same where you run to unlock a plant and tree for your garden.
The folks at artificial museum [1] would probably provide a good model for how to do this - I could imagine running around in their dataspace, planting seeds which grow over time.
The idea of the garden is also the same where you run to unlock a plant and tree for your garden.