Photographers post a walk — a meeting point, a time, three to five photo stops, a theme. Other photographers RSVP. The group meets and walks the city together. That's the whole product.

What makes it different is what's missing. No feed. No engagement metrics. No algorithmic ranking. No in-app notifications nudging you back. Hosts talk to attendees by email; share links don't track; the source is public. Hosts never see attendee addresses, and there is no advertiser to please because there are no advertisers. Free for the people using it, kept up by donations, run on a fifty-dollar-a-month infrastructure budget.

BlockWalk is currently pre-launch and operated transparently: public costs, public principles, public source. The product lives at blockwalk.org.