diff --git a/docs/configurations/environment-variables.mdx b/docs/configurations/environment-variables.mdx
new file mode 100644
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@@ -0,0 +1,33 @@
+---
+title: "Environment Variables"
+description: "Configure Presenton using environment variables."
+---
+
+Presenton can be customized and secured using environment variables. Below are the key variables you can set when running the app:
+
+- **`CAN_CHANGE_KEYS`**\
+  Controls whether users can modify API keys through the app interface.\
+  Set to `"false"` to keep keys hidden and unchangeable, or `"true"` to allow changes.\
+  _Example:_ `CAN_CHANGE_KEYS="false"`
+- **`LLM`**\
+  Select which Large Language Model provider Presenton should use.\
+  Supported values: `"openai"`, `"google"`, `"ollama"`.\
+  _Example:_ `LLM="openai"`
+- **`OPENAI_API_KEY`**\
+  Your OpenAI API key. Required if `LLM` is set to `"openai"`.\
+  _Example:_ `OPENAI_API_KEY="sk-xxxxxxxxxxxxxxxx"`
+- **`GOOGLE_API_KEY`**\
+  Your Google API key. Required if `LLM` is set to `"google"`.\
+  _Example:_ `GOOGLE_API_KEY="AIzaSyXXXXXXXXXXXX"`
+- **`OLLAMA_MODEL`**\
+  The Ollama model name to use. Required if `LLM` is set to `"ollama"`.\
+  _Example:_ `OLLAMA_MODEL="llama3.2:3b"`
+- **`PEXELS_API_KEY`**\
+  API key for the Pexels image service. Optional but recommended when using Ollama models to enhance image search.\
+  _Example:_ `PEXELS_API_KEY="abcdef123456"`
+
+### Example: Running Presenton with Environment Variables
+
+```bash
+docker run -it --name presenton -p 5000:80 -e LLM="openai" -e OPENAI_API_KEY="your_openai_api_key" -e CAN_CHANGE_KEYS="false" -v "./user_data:/app/user_data" ghcr.io/presenton/presenton:v0.3.0-beta
+```
\ No newline at end of file
diff --git a/docs/docs.json b/docs/docs.json
index e30dbd76..7c12ab88 100644
--- a/docs/docs.json
+++ b/docs/docs.json
@@ -21,6 +21,12 @@
               "development"
             ]
           },
+          {
+            "group": "Configurations",
+            "pages": [
+              "configurations/environment-variables",
+            ]
+          }
           {
             "group": "Essentials",
             "pages": [