Fly, a platform for deploying applications, has released new features and improvements. Persistent storage is now available in preview for Fly applications with the volumes command allowing creation of persistent disks. Environment variables can be set in the fly.toml file instead of using secrets. The latest release of Fly's CLI tool includes better builtins support with settings, a Python/Procfile builtin, updated Deno and static website builtins, new commands for Volumes (persistent disk support) in preview, automatic use of default org when initiating an app, added --watch to status command for autorefresh, and fixed wildcard domain support.