diff --git a/pyproject.toml b/pyproject.toml
index 636b69f..11d2842 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,10 +5,23 @@ build-backend = "hatchling.build"
 [project]
 name = "docai"
 version = "0.0.0"
-dynamic = ["dependencies"]
+requires-python = ">=3.12,<3.14"
+dependencies = [
+    "rich>=14.2",
+    "typer>=0.20.0",
+    "langchain>=1.1",
+    "langchain-openai>=1.1",
+    "xdg-base-dirs>=6.0.2",
+    "in_place>=1.0.1",
+    "tree-sitter>=0.25.2",
+    "tree-sitter-python>=0.25.0",
+    "tree-sitter-c>=0.24.1",
+    "tree-sitter-cpp>=0.23.4",
+]
+dynamic = []
 
-[tool.hatch.dependencies]
-path = "requirements.txt"
+[project.scripts]
+docai = "docai.cli:app"
 
 [tool.hatch.build.targets.wheel]
 packages = ["src/docai"]
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 9bee7bf..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,10 +0,0 @@
-rich>=14.2
-typer>=0.20.0
-langchain>=1.1
-langchain-openai>=1.1
-xdg-base-dirs>=6.0.2
-in_place>=1.0.1
-tree-sitter>=0.25.2
-tree-sitter-python>=0.25.0
-tree-sitter-c>=0.24.1
-tree-sitter-cpp>=0.23.4
diff --git a/src/docai/__main__.py b/src/docai/__main__.py
index b473375..c82d98f 100644
--- a/src/docai/__main__.py
+++ b/src/docai/__main__.py
@@ -1,11 +1,8 @@
 import sys
 from pathlib import Path
 
-
 # Add 'src/' to sys.path manually
 sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
-from docai.main import main
 
-import typer
-
-typer.run(main)
+from docai.cli import app
+app()
diff --git a/src/docai/main.py b/src/docai/cli.py
similarity index 96%
rename from src/docai/main.py
rename to src/docai/cli.py
index 5878cfc..42f24bb 100644
--- a/src/docai/main.py
+++ b/src/docai/cli.py
@@ -18,7 +18,9 @@ CONFIG_PATHS = [
     Path().absolute() / "config.toml",
 ]
 
+app = typer.Typer(help="DocAI - Generative Documentation")
 
+@app.command()
 def main(
     files: list[Path],
     config: Path | None = typer.Option(None),
@@ -79,4 +81,4 @@ def main(
 
 
 if __name__ == "__main__":
-    typer.run(main)
+    app()