The article discusses how to turn a local ad-blocking tool called Pi-Hole into a globally available app using Fly, an edge network platform. It explains what Pi-Hole is and its benefits in blocking advertising at the DNS level. The author then describes the challenges of taking Pi-Hole on the road and how it can be made more portable by running it as a Docker image. Finally, the article demonstrates how to deploy a global version of Pi-Hole using Fly's edge network, which provides low latency and global availability. The author also shares their Dockerfile and fly.toml file configurations for deploying the app on Fly.