diff --git a/tools.func.md b/tools.func.md
index ab8e18c..6f84cc8 100644
--- a/tools.func.md
+++ b/tools.func.md
@@ -38,19 +38,16 @@ NODE_VERSION=20 NODE_MODULE="yarn@latest,@vue/cli-service@5.0.0" install_node_an
 | `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.
+---
 
 ## `install_postgresql`
 
-### Overview
+### Description
+`install_postgresql()`:
 
-This function installs or upgrades to a specified version of PostgreSQL. It handles backups, repository configuration, and service restarts automatically.
+- Checks if Postgressql is installed.
+- If Postgressql  is installed but not the desired version, it replaces it.
+- If Postgressql  is not installed, it installs the specified version.
 
 ### Usage
 
@@ -68,12 +65,41 @@ PG_VERSION=15 install_postgresql
 |--------------|-----------------------------------------------------------------------------|---------------|
 | `PG_VERSION` | Specifies the major version of PostgreSQL to install or upgrade to (e.g., `14`, `15`, `16`). | `16`          |
 
-### Behavior
 
-- Backs up databases if an existing installation is detected.
-- Installs the required version of PostgreSQL using the PGDG APT repo.
-- Restores the database after upgrade if applicable.
+---
+## install_mariadb 
+
+### Description
+
+
+- Detecting the current version of MariaDB (if installed)
+- Upgrading to the latest version if needed
+- Replacing older versions while preserving data
+- Configuring the appropriate MariaDB APT repository
+- Installing the MariaDB packages
+
+
+## Usage
+
+```bash
+install_mariadb
+```
+You can optionally set the `MARIADB_VERSION` environment variable before calling the function to specify a particular version to install.
+
+Example:
+```bash
+MARIADB_VERSION="10.11.6" install_mariadb
+```
+If no version is specified, the script will automatically fetch and install the latest GA (Generally Available) version of MariaDB.
+
+### User-Configurable Variables
+
+| Variable     | Description                                                                 | Default Value |
+|--------------|-----------------------------------------------------------------------------|---------------|
+| `MARIADB_VERSION` | Specifies the version of MariaDB to install. If set to `latest`, the script will detect the most recent GA version from the MariaDB mirror site. | `latest`|
 
 ---
 
 
+
+