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+# This page describes all helper functions defined in `misc/tools.func`
+
+## `install_node_and_modules` Bash Function
+
+This function automates the installation of a specified version of Node.js and a list of global Node modules on a Debian-based system. It ensures the desired Node.js version is installed (replacing any existing version if necessary) and installs or updates specified Node.js global modules.
+
+---
+
+### 🧰 Function Description
+
+`install_node_and_modules()`:
+
+- Checks if Node.js is installed.
+- If Node.js is installed but not the desired version, it replaces it.
+- If Node.js is not installed, it installs the specified version using the NodeSource APT repository.
+- It can also install or update a list of global Node modules.
+
+---
+
+### 🚀 How to Use/Example
+
+```bash
+install_node_and_modules
+```
+to install the latest version of Node.js with no additional Modules.
+If you want to define a specified Version and install Modules use something like this:
+
+```bash
+NODE_VERSION=20 NODE_MODULE="yarn@latest,@vue/cli-service@5.0.0" install_node_and_modules
+```
+
+### 🧩 User-Configurable Variables
+
+| Variable       | Description                                                                                                    | Default Value |
+|----------------|----------------------------------------------------------------------------------------------------------------|---------------|
+| `NODE_VERSION` | Specifies the major version of Node.js to install (e.g., `20`, `22`).                                          | `22`          |
+| `NODE_MODULE`  | Comma-separated list of global npm modules to install or update. <br>Examples: <br>• `yarn@latest` <br>• `@vue/cli-service@5.0.0` <br>• `typescript` | *(empty)*     |
+
+
+### 🔧 Notes
+
+Global npm packages are only processed if NODE_MODULE is set.
+If the requested module version is already installed, it is skipped.
+Modules are updated if the installed version does not match the requested one (unless latest is used).
+On failure, the script exits with exit 1.
+
+
+