tl;dr: Fly.io is pivoting to focus on "Sprites"—semi-disposable cloud VMs designed as computers for AI coding agents, betting that agents will soon drive most software development. The relaunched Sprites include a new block device (SBD) enabling fast forking/cloning and Connectors for authenticated external requests without exposing credentials. Founder Kurt Mackay is stepping down as CEO, handing the role to former Docker CEO Scott Johnston, and the company has raised a substantial new round to fund the shift.