feat: Add README and make port configurable via env

Introduces a README file with setup and usage instructions for
TypeNot, highlighting its privacy benefits and configuration
options.

Updates the application to allow port configuration with an
environment variable, enhancing deployment flexibility.

README.md

@@ -0,0 +1,40 @@
+# TypeNot - a privacy-friendly Typekit proxy
+
+TypeNot is a Flask app that acts as a proxy for Typekit fonts. It allows you to use Typekit fonts without disclosing your website visitors' IP addresses to Adobe.
+
+## How it works
+
+TypeNot works by fetching the font files from Typekit and serving them to the client. This way, the client's IP address is never disclosed to Adobe. It does not store any data about the client.
+
+## Setup
+
+1. Clone the repository
+
+```bash
+git clone https://git.private.coffee/PrivateCoffee/typenot.git
+cd typenot
+```
+
+2. Create a virtual environment and install the dependencies
+
+```bash
+python3 -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+```
+
+3. Use the flask command or a WSGI server to run the app
+
+```bash
+flask run
+```
+
+In production, you should use a WSGI server like uWSGI, and a reverse proxy like Caddy. Ensure that your server does not log the client's IP address!
+
+## Configuration
+
+TypeNot does not require any configuration. However, if you use `flask run`, you can set the `PORT` environment variable to change the port the app listens on. By default, it listens on port 5690.
+
+## License
+
+TypeNot is licensed under the MIT License. See [LICENSE](LICENSE) for more information.

app.py

@@ -1,6 +1,7 @@
 from flask import Flask, request, Response, render_template
 import requests
 import re
+import os
 
 app = Flask(__name__)
 
@@ -72,4 +73,4 @@ def proxy_fonts(path):
 
 
 if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=5690)
+    app.run(host="0.0.0.0", port=os.environ.get("PORT", 5690))