Include privacy policy in sitegen.

This is for now a duplicate of privacy.html (which is linked from the
Android store) - in the future the old one could redirect.

hugo-static/content/_index.md

@@ -21,4 +21,5 @@ and is written in Rust, with contributions from the community encouraged.
 * [<i class="bi-android2"></i> Play on Android](https://play.google.com/store/apps/details?id=org.blastmud.game) (coming soon).
 * [<i class="bi-book"></i> Our theme](theme)
 * [<i class="bi-git"></i> Developer guide & source](developer)
+* [<i class="bi-shield"></i> Privacy policy](privacy)
 * [<i class="bi-envelope-at"></i> Contact staff](mailto:staff@blastmud.org)

hugo-static/content/menu/index.md

@@ -1,11 +0,0 @@
----
-headless: true
----
-* [Welcome page](/)
-* [<i class="bi-browser-firefox"></i> Play in browser](game.html)
-* [<i class="bi-android2"></i> Play on Android](https://play.google.com/store/apps/details?id=org.blastmud.game)
-* [<i class="bi-book"></i> Our theme](theme)
-* [<i class="bi-git"></i> Developer guide & source](developer)
-* [<i class="bi-envelope-at"></i> Contact staff](mailto:staff@blastmud.org)
-
-<br />

hugo-static/content/privacy.md

@@ -0,0 +1,34 @@
+---
+menu:
+  after:
+    name: Privacy policy
+    weight: 100
+title: Privacy policy
+---
+# Privacy Policy
+
+Blastmud collects the following information that can be linked to individuals:
+* Whether or not you are over 18 years of age. This is used to ensure that
+  we do not allow you access to games which cannot be made available to you.
+  If you are under 18, the data is not retained. If you are over 18, this
+  information is retained indefinitely.
+* The IP address(es) you use to connect to Blastmud. These are used
+  to block access to Blastmud from countries where we are not confident it can be legally provided,
+  to check whether or not you are using an IP address that has been banned or restricted from the
+  service or part of it, and to apply rate limits to prevent abuse. In normal circumstances, IP
+  addresses are retained for up to 2 years, but if you are banned or restricted from the service,
+  they are retained until up to 2 years after the ban or restriction is lifted. Bans and restrictions
+  can be for an indefinite period, in which the IP address will be retained indefinitely.
+* The IP address used to request an Over 18 certificate for running your own server.
+  This will form part of the certificate issued. We keep records of all certificates issued,
+  including the IP address, so that they can be revoked if they are leaked on the Internet.
+* The email address you provide. This is retained indefinitely as an identifier for your
+  account in case you contact us in the future. However, you may contact staff@blastmud.org
+  and request that we disable your account and delete this information.
+* The character name you choose for yourself. We recommend not making this something
+  linkable to your real identity, as it will be retained indefinitely and shown in-game to
+  identify you to other players.
+* Any free-form information you disclose while playing the game (for example, through in game
+  communication functionality). Depending on the type of communication, this could be shared
+  with other players and retained indefinitely. We recommend not posting any personally
+  identifiable information through these channels.

hugo-static/layouts/home.html

@@ -5,6 +5,7 @@
     <style>
       h1 { text-align: center }
       a { color: white; }
+      .anchor { display: none; }
     </style>
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.10.3/font/bootstrap-icons.css">    
   </head>