diff --git a/README.md b/README.md
index 269568c..dc80181 100644
--- a/README.md
+++ b/README.md
@@ -178,6 +178,33 @@ order to use this helper (adding `require "json"` to your app should
 suffice). The lower level `write` method writes a string to the
 response object. It is used internally by `text` and `json`.
 
+Running the server
+------------------
+
+If `App` is an instance of `Toro`, then you can start the server
+by calling `App.run`. You can pass any options you would use with
+the `HTTP::Server` constructor from the standard library.
+
+For example, you can start the server on port 80:
+
+```crystal
+App.run(80)
+```
+
+Or you can further configure server by using a block. The following
+example shows how to configure SSL certificates:
+
+```crystal
+App.run(443) do |server|
+  ssl = OpenSSL::SSL::Context::Server.new
+  ssl.private_key = "path/to/private_key"
+  ssl.certificate_chain = "path/to/certificate_chain"
+  server.tls = ssl
+end
+```
+
+Refer to Crystal's documentation for more options.
+
 Status codes
 ------------
 
diff --git a/src/toro.cr b/src/toro.cr
index 82199f1..3056e8b 100644
--- a/src/toro.cr
+++ b/src/toro.cr
@@ -31,8 +31,12 @@ module Toro
       new(context, path).call
     end
 
-    def self.run(port = 8080)
-      server = HTTP::Server.new(port) do |context|
+    def self.run(*args)
+      run(*args) {}
+    end
+
+    def self.run(*args, &block)
+      server = HTTP::Server.new(*args) do |context|
         call(context)
       end
 
@@ -41,7 +45,9 @@ module Toro
         exit
       end
 
-      puts "#{name} - Listening on port #{port}"
+      yield server
+
+      puts "#{name} - Listening on port #{server.port}"
       server.listen
     end