docs: add commercial license setup guide

README.md

@@ -43,3 +43,19 @@ See [CONTRIBUTING.md](CONTRIBUTING.md).
 
 ## License
 Adminterface is free for personal and non-commercial use and with a yearly subscription for commercial purposes. See [our Terms of Service in full text](LICENSE.md) for more information.
+
+### For Commerical License
+Get a license at https://adminterface.io/pricing, then create and add the `license_key` into the following file in your project:
+```ruby
+# config/initializers/adminterface.rb
+Adminterface.setup do |config|
+  config.license_key = "**********************"
+
+  ## Use Rails credentials:
+  ## doc: https://edgeguides.rubyonrails.org/security.html#custom-credentials
+  # config.license_key = Rails.application.credentials.adminterface[:license_key]
+
+  ## Or, use environment variables:
+  # config.license_key = ENV["ADMINTERFACE_LICENSE_KEY"]
+end
+```

website/docs/start/installation.mdx

@@ -39,6 +39,10 @@ description: Adminterface Installation & Quick Start Guide.
   $ rails server
   ```
 
+:::info
+If you are on the "Commerical License" plan, please see the [licensing doc](/docs/start/licensing) for instructions on how to configure your license.
+:::
+
 If you're having issues installing, please visit our [support page](/community/support) for ways to get help or submitting issues.
 
 [ActiveAdmin]: https://activeadmin.info

website/docs/start/licensing.mdx

@@ -0,0 +1,59 @@
+---
+sidebar_position: 99
+description: Adminterface License Configuration Guide
+---
+
+# Licensing
+Adminterface is free for personal and non-commercial use and with a yearly subscription for commercial purposes. See [our Terms of Service in full text](/docs/terms) for more information.
+
+:::tip
+🤗 We appreciate your support for purchasing the "Commercial License" plan and help us make Adminterface better.
+:::
+
+## Everything's included, always
+Every pricing plan will always include all features. There are absolutely no functionality differences with Adminterface's pricing plan.
+
+## One license per project
+Each license permits you to run one commercial project in the production environment.
+
+## Add the license key
+Create and add the `license_key` into the following file in your project:
+```ruby title="config/initializers/adminterface.rb" {2,6,9}
+Adminterface.setup do |config|
+  config.license_key = "**********************"
+
+  ## Use Rails credentials:
+  ## doc: https://edgeguides.rubyonrails.org/security.html#custom-credentials
+  # config.license_key = Rails.application.credentials.adminterface[:license_key]
+
+  ## Or, use environment variables:
+  # config.license_key = ENV["ADMINTERFACE_LICENSE_KEY"]
+end
+```
+
+## Purchase a license
+We are currently working on the customer's dashboard. But, for now, you can purchase a license from the "Register for the beta" link on https://adminterface.io/pricing.
+
+## License verification
+When the application initializes, it pings our server with some information about the current Adminterface installation.
+The server will respond with a license valid/invalid back to your application.
+
+:::info
+The application will only send the request when it first initializes, so it will not impact your application's performance.
+
+Furthermore, when the verification fails, it won't crash your application, but you will receive a friendly reminder from us.
+:::
+
+You can find the full payload below:
+```ruby
+{
+  license_key: license_key, # Your license key
+  license: license, # e.g., personal, commerical
+  adminterface_version: Adminterface::VERSION,
+  rails_version: Rails::VERSION::STRING,
+  ruby_version: RUBY_VERSION,
+  environment: Rails.env,
+  app_name: app_name, # e.g., MyAwesomeProject
+}
+```
+