diff --git a/README.md b/README.md
index 62ec86b..a1fb325 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,88 @@
 
 You own little LLM in your matrix chatroom.
 
+## Installation
+
+```bash
+pip install git+https://github.com/Laurent2916/nio-llm.git
+```
+
+## Usage
+
+This project uses [jsonargparse](https://github.com/omni-us/jsonargparse/) to help with the command line arguments.
+
+To see the available options, run:
+
+```bash
+nio_llm --help
+```
+
+To run the bot, you can either use command line arguments, environment variables or a config file. (or a mix of all three)
+
+### Command line arguments
+
+```bash
+nio_llm \
+  # required \
+  --room <YOUR ROOM> \
+  --password <YOUR PASSWORD> \
+  --username <YOUR USERNAME> \
+  --preprompt <YOUR PREPROMPT> \
+  # optional \
+  --device-id nio-llm \
+  --homeserver https://matrix.org \
+  --ggml-repoid TheBloke/stable-vicuna-13B-GGML \
+  --ggml-filename stable-vicuna-13B.ggmlv3.q5_1.bin \
+  --sync-timeout 30000
+```
+
+### Environment variables
+
+```bash
+# required
+export NIO_LLM_ROOM=<YOUR ROOM>
+export NIO_LLM_PASSWORD=<YOUR PASSWORD>
+export NIO_LLM_USERNAME=<YOUR USERNAME>
+export NIO_LLM_PREPROMPT=<YOUR PREPROMPT>
+
+# optional
+export NIO_LLM_DEVICE_ID=nio-llm
+export NIO_LLM_HOMESERVER=https://matrix.org
+export NIO_LLM_GGML_REPOID=TheBloke/stable-vicuna-13B-GGML
+export NIO_LLM_GGML_FILENAME=stable-vicuna-13B.ggmlv3.q5_1.bin
+export NIO_LLM_SYNC_TIMEOUT=30000
+
+nio_llm
+```
+
+
+### Config file
+
+Create a config file with the following content:
+
+```yaml
+# config_file.yaml
+
+# required
+room: <YOUR ROOM>
+password: <YOUR PASSWORD>
+username: <YOUR USERNAME>
+preprompt: <YOUR PREPROMPT>
+
+# optional
+device_id: nio-llm
+homeserver: https://matrix.org
+ggml_repoid: TheBloke/stable-vicuna-13B-GGML
+ggml_filename: stable-vicuna-13B.ggmlv3.q5_1.bin
+sync_timeout: 30000
+```
+
+Then run:
+
+```bash
+nio_llm --config config_file.yaml
+```
+
 ## Special thanks
 
 - https://github.com/abetlen/llama-cpp-python