Add Forgejo documentation

content/docs/infrastructure/forgejo/_index.md

@@ -5,9 +5,40 @@ draft: true
 ---
 
 [Forgejo](https://forgejo.org/) enables me to share the sources of my projects
-and use [version control](https://en.wikipedia.org/wiki/Version_control) during
-iteration. As a [soft-fork of Gitea](https://forgejo.org/compare/#faq) it
-compares to other platforms and providers (BitBucket, GitHub, etc.) in that it 
+and use version control[^1] during iteration. As a 
+[soft-fork of Gitea](https://forgejo.org/compare/#faq)
+it compares to other platforms and providers (BitBucket, GitHub, etc.) in that it 
 provides most crucial features while being a lightweigt, self-hostable solution.
 
-{{< figure src="img/forgejo-wordmark.svg" alt="Forgejo logo" width="25%" >}}
+[^1]: [Version control](https://en.wikipedia.org/wiki/Version_control) in the
+Wikipedia
+
+{{< figure src="img/forgejo-wordmark.svg" alt="Forgejo logo" width="25%" >}}
+
+{{< callout type="info" >}}
+  Some links in this guide lead to the docs of [Codeberg](https://codeberg.org/)
+  as they develop Forgejo and use it to drive an alternative collaboration
+  platform providing Git hosting and services for free and open source software,
+  content and projects.
+{{< /callout >}}
+
+## Basic setup
+
+The official [installation](https://forgejo.org/docs/latest/admin/installation/) guide covers typical scenarios including a migration from Gitea. I refer to the
+[Forgejo — UberLab 7 documentation](https://lab.uberspace.de/guide_forgejo/) for
+a basic setup and use Forgejo's own documentation for further adjustments.
+
+## Security
+
+To [securely](https://docs.codeberg.org/security/) use Forgejo I refer to guides
+on:
+- Setting up two-factor authentication
+- Adding an SSH key to your account
+- Adding a GPG key to your account 
+
+Two-Factor authentication[^2] is found in the user drop down menu in *Settings*
+\> *Security* and *SSH / GPG keys* is another separate menu entry in the
+settings page.
+
+[^2]: [Multi-factor authentication](https://en.wikipedia.org/wiki/Multi-factor_authentication)
+in the Wikipedia