docs: update references to renamed commons repository (#11)

services/docs/content/en/root/guides/installation.md

@@ -0,0 +1,60 @@
+---
+title: Installation
+description: Initial setup of the Root framework on a new host.
+weight: 25
+---
+
+This guide covers the initial setup of the Root framework on a new host.
+
+## Prerequisites {#prerequisites}
+
+- A Debian-based Linux distribution (Debian or Ubuntu).
+- Git installed.
+- Sudo privileges.
+
+## Initializing the repository {#init}
+
+{{% steps %}}
+
+### Step 1: Clone the configuration repository
+
+Clone the repository containing your [Node](/root/glossary#node) configurations.
+
+```bash
+git clone <your-configs-repo-url> ~/repo
+cd ~/repo
+```
+
+### Step 2: Run the initialization script
+
+The `init.sh` script sets up the [Commons](/root/glossary#commons) submodule, configures Git hooks, and adds the `root` wrapper to your `PATH`.
+
+```bash
+./init.sh
+```
+
+### Step 3: Refresh your shell
+
+Source your `.bashrc` to activate the `root` command.
+
+```bash
+source ~/.bashrc
+```
+
+{{% /steps %}}
+
+## Provisioning a node {#provision}
+
+Once the framework is installed, you can provision a specific [Node](/root/glossary#node).
+
+```bash
+root configure/base <node_name>
+root configure/ufw <node_name>
+```
+
+---
+
+**See also:**
+
+- [Concept: Infrastructure architecture](/root/concepts/architecture)
+- [Reference: ROOT_ API reference](/root/reference/root-api)