On the Pineco.de blog there's a tutorial for the Laravel users out there showing how to set up subdomains in your application using the built-in framework functionality (and their setup with Valet/Forge).

Often we need to handle subdomains with our Laravel application. Let’s take a look, how can we treat the routes dynamically and set up the subdomain with Valet and Forge.

The tutorial then walks you through the steps to get subdomains working:

• Defining Subdomains in Our Routes
• Dynamically Generate Subdomains
• Faking Subdomains in Valet
• Setting Up Subdomains in Forge

Each section comes with a brief explanation and any code or configuration changes that would need to be made to make it all work.