Shrijith Venkatrama is building LiveAPI, a tool for indexing API endpoints across repositories.Combining Tailscale, Caddy, and Docker enables secure, scalable dev server setups.Tailscale provides a secure private VPN network, Caddy offers automatic HTTPS and reverse proxying, and Docker ensures consistency.Tailscale setup involves installation and configuration, creating a private mesh network for secure access.Installing Docker on Ubuntu allows containerized app deployment with consistent environments.Caddy simplifies serving apps with automatic HTTPS and reverse proxying, enhancing server security.The integration of Tailscale, Caddy, and Docker allows seamless connection and secure access to applications.Scaling with Docker Compose simplifies managing multiple apps within containers and through Caddy's reverse proxy.Further securing the setup can be done with Tailscale ACLs, Caddy security measures, and Docker best practices.Common troubleshooting issues include Tailscale connection failures, Caddy HTTPS failures, and Docker container crashes.