Fly Answers Questions - Suspend, Resume, Restart and Redis

In this text, Dj Walker-Morgan discusses various aspects of using Fly, a platform for deploying applications. The key points include: 1. Answering questions about Fly on Twitter and in the Fly Community. 2. Using the `fly suspend` command to park an application without destroying it or losing configuration, followed by the `fly resume` command to bring it back online. 3. The `fly restart` command is used for restarting instances of an application when it gets into an indeterminate state but doesn't trigger any deployments. 4. Publish/Subscribe (Pub/Sub) is not supported on Fly's Redis implementation, along with some other unsupported commands related to server or client management and geo-based Redis commands. 5. The minimum number of instances for an app cannot be set to 0; the `fly suspend` command should be used instead. 6. The Fly CLI is being migrated from flyctl to the shorter fly command, with back-compatibility in mind. 7. The community site at community.fly.io is a great place for asking questions and getting help with Fly applications.