diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 217f802..f578d16 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,5 +21,9 @@ jobs:
         run: |
           python -m pip install --upgrade pip setuptools wheel
           pip install -e ".[dev]"
+          # Install pre-commit
+          pip install pre-commit
+          # Run pre-commit on all files
+          pre-commit run --all-files
       - name: Run tests
         run: pytest -q
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 0000000..a0be6d4
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,11 @@
+repos:
+- repo: https://github.com/psf/black
+  rev: 24.3.0
+  hooks:
+    - id: black
+      language_version: python3.14
+- repo: https://github.com/charliermarsh/ruff-pre-commit
+  rev: v0.6.2
+  hooks:
+    - id: ruff
+      args: [--fix]
diff --git a/README.md b/README.md
index abdb4b9..21fe694 100644
--- a/README.md
+++ b/README.md
@@ -76,6 +76,25 @@ source .venv/bin/activate
 
 The installer automatically initializes any submodules (none are required now) and installs the required spaCy language models (`en`, `fr`, `es`).
 
+
+
+If you prefer not to create a PyPI account, you can still obtain and install Kaihou Engine using these approaches:
+
+* **GitHub Releases** – The CI workflow builds wheels for each tag.  When a release (e.g., `v0.2.0`) is published, download the attached `.whl` file and install it locally:
+  ```bash
+  curl -L -o kaihou_engine-0.2.0-py3-none-any.whl \
+      https://github.com/kaihouproject/kaihou-engine/releases/download/v0.2.0/kaihou_engine-0.2.0-py3-none-any.whl
+  python -m pip install kaihou_engine-0.2.0-py3-none-any.whl
+  ```
+
+* **Direct install from the repository** – Pip can install the package straight from the GitHub URL without any PyPI involvement:
+  ```bash
+  python -m pip install git+https://github.com/kaihouproject/kaihou-engine.git@main#egg=kaihou-engine
+  ```
+
+Both methods work with the existing `install.sh` script, which does not depend on PyPI. After installation, activate the virtual environment (`source .venv/bin/activate`) and you are ready to use `kaihou` as described in the Quick‑Start section.
+
+
 ## Quick Start
 ```bash
 # Interactive menu
@@ -97,6 +116,16 @@ We welcome contributions. Open a pull request (forking is optional) and referenc
 - Additional language pairs (e.g., ES, DE)
 - Plug‑in for remote LLM APIs
 
+## Acknowledgements
+
+The Kaihou Engine stands on the shoulders of many great open‑source projects and the broader Python community:
+
+- **[spaCy](https://spacy.io/)** – the NLP library that provides the linguistic backbone.
+- **[Rich](https://github.com/Textualize/rich)** – beautiful terminal rendering and colorised output.
+- **[Click](https://palletsprojects.com/p/click/)** – the CLI framework that powers our command line.
+- **[Python](https://www.python.org/)** – for its extensive ecosystem and thriving community.
+- And countless **contributors** who have helped improve Kaihou Engine.
+
 These items are tracked in the GitHub milestone **Future Features**.
 
 [![CI](https://github.com/kaihouproject/kaihou-engine/actions/workflows/ci.yml/badge.svg)](https://github.com/kaihouproject/kaihou-engine/actions/workflows/ci.yml)
diff --git a/pyproject.toml b/pyproject.toml
index f3e3d74..de34e52 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,6 +9,12 @@ description = "Orchestration layer for Kaihou NLP Engine and related pipelines"
 readme = "README.md"
 authors = [{name = "Houtarou", email = "houtarou@example.com"}]
 license = {text = "MIT"}
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
 requires-python = ">=3.11"
 dependencies = [
     "click",
@@ -22,6 +28,11 @@ dependencies = [
     "sentence-transformers"
 ]
 
+[project.urls]
+Homepage = "https://github.com/houtarou/kaihou-engine"
+Repository = "https://github.com/houtarou/kaihou-engine"
+Documentation = "https://github.com/houtarou/kaihou-engine#readme"
+
 [project.optional-dependencies]
 dev = [
     "pytest",
diff --git a/src/kaihou_engine/nlp_engine/analyzer.py b/src/kaihou_engine/nlp_engine/analyzer.py
index d86a820..896578c 100644
--- a/src/kaihou_engine/nlp_engine/analyzer.py
+++ b/src/kaihou_engine/nlp_engine/analyzer.py
@@ -9,7 +9,8 @@
 from __future__ import annotations
 
 from pathlib import Path
-from typing import List
+import spacy
+
 
 
 
@@ -23,7 +24,7 @@
     "de": "de_core_news_sm",
 }
 
-import spacy
+
 
 
 def _load_model(lang: str):