add treefmt and jupyter lab

AI_Data/Clan/manual/index.md

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+# :material-book: Guides
+
+Instructions and explanations for practical Implementations ordered by Topics.
+
+## Tutorials
+
+**Learning-oriented adventures with a hands-on experience.**
+
+<div class="grid cards" markdown>
+
+-   :material-clock-fast:{ .lg .middle } __Set up in 15 minutes__
+
+    ---
+
+    Create your own clan and get everything
+    running in minutes
+
+    [:octicons-arrow-right-24: Getting started](../getting-started/index.md)
+
+-   :fontawesome-solid-user-group:{ .lg .middle } __Authoring Modules__
+
+    ---
+
+    Create clanModules that can be reused by the community.
+
+    [:octicons-arrow-right-24: Authoring clanModules](../clanmodules/index.md)
+
+</div>
+
+## Guides
+
+**How-to Guides for achieving a certain goal or solving a specific issue.**
+
+<div class="grid cards" markdown>
+
+-   [Machines](./adding-machines.md)
+
+    ---
+
+    Learn how Clan automatically includes machines and Nix files.
+
+-   [Secrets](./secrets.md)
+
+    ---
+
+    Learn how to manage secrets.
+
+-   [Inventory](./inventory.md)
+
+    ---
+
+    Clan's declaration format for running **services** on one or multiple **machines**.
+
+-   [Flake-parts](./flake-parts.md)
+
+    ---
+
+    Use clan with [https://flake-parts.dev]()
+
+-   [Contribute](./contribute.md)
+
+    ---
+
+    Discover how to set up a development environment to contribute to Clan!
+
+</div>