Initialize and build the component template frontend from the terminal:
```shell
   # React template
   $ template/my_component/frontend
   $ npm install    # Initialize the project and install npm dependencies
   $ npm run start  # Start the Webpack dev server
# or
# TypeScript-only template
   $ template-reactless/my_component/frontend
   $ npm install    # Initialize the project and install npm dependencies
   $ npm run start  # Start the Webpack dev server
   ```
From a separate terminal, run the Streamlit app (Python) that declares and uses the component:
```shell
   # React template
   $ cd template
   $ . venv/bin/activate # or similar to activate the venv/conda environment where Streamlit is installed
   $ streamlit run my_component/init.py # run the example
# or
# TypeScript-only template
