Caddy is gaining popularity among developers for its simplicity and ease of use when setting up HTTPS, especially for local testing environments and development with HTTP2. Users appreciate its ability to handle multiple concurrent connections without the hassle of SSL setup. This feature is particularly beneficial when using tools like Vite for development, as it allows for faster reloads and reduced queues for concurrent file requests. Caddy's modular architecture and friendly licensing under Apache v2 have fostered an ecosystem that enhances its functionality, particularly for integrating with VPNs like Tailscale. It is being used in various scenarios, including running multiple Docker projects and as an alternative to traditional web servers like NGINX. Some users report it simplifies the deployment process, while others express a desire for better tutorials on integration with specific frameworks, like Django. Overall, Caddy’s ease of configuration and powerful features present it as a solid choice for developers looking for an efficient server solution.