This is the source code for Papeg.ai, a website that offers popular AI features such as chat and document editing, and makes them free, easy to use and completely private.
See the code in action here: https://papeg.ai
Papeg.ai runs completely client-side, which means you always have access to the complete source code as it's running inside your web browser. The code is placed here as a convenience, to make inspecting it as easy as possible.
This project was developed by a self-taught digital artist from Amsterdam, not a professional development team. You should not rely on papeg.ai for anything serious or mission-critical.
You may use the online version at https://papeg.ai (and the beta version at https://papegai.eu) freely in any situation. If you use it in a corporate context, then you are honour-bound to get in touch and help to financially support the project (and in turn allow me to support the projects and services that make papeg.ai possible). A monthly fee of 2 euro per user is suggested.
If you want to use this source code, for example to create a local deployment on your own server, then there are more restrictions as details below.
This code is currently not available under an open source licence. You may not use or duplicate this code except under the following conditions:

Use at your own risk. www.papeg.ai and this source are provided as-is.
Commercial use may also be restricted by the usage license of certain AI models (most notably the image generation AI's).
Get in touch with Tijmen Schep if you're interested in using papeg.ai and/or this code in a for-profit situation.
You don't need to install this on your own device. Simply visit https://www.papeg.ai to use it.
But if you really want to:
python3 -m http.server, then press enter.localhost:8000 (or, alternatively, 127.0.0.1:8000). You may need to change the 8000 to 8080 or 5000.