Mostly just that you can self-host this stack and keep your location information private (the way it should be). If you're fine sharing your current and future whereabouts with people then there's no need to self-host so you're free to pick whatever service is the nicest to use. For most people that's going to be Google or Apple maps, but there's definitely a niche for a project like this.

Compared to self-hosting an existing project, it is much easier to bring up a new Headway instance:

`make Seattle.up` will bring up a new instance on 8080.