He was gonna say he fed the fries to a house sparrow and the guy waiting around the corner was going to harass him for feeding an invasive species. I guess the joke is that the author sees humans as the most invasive species (which, as an aside, is a bad take when you think about indigenous peoples of our species)
This mobile app is not associated with the current open source project. Like i think it’s a vestige from before they went open source. They recommend using actual in your mobile browser for now, which works decently well