A shoutbox written in PHP styled to look like a certain mongolian fishing forum.
The only thing you need is a server with PHP installed. It's extremely portable as it just writes the posts directly to an HTML file instead of using any databases.
Take all the folders from the github repo and upload it to your server. That's it.
All Getgle software is no longer maintained. If you encounter any bugs you will have to fix them yourself. If you want to learn more then visit the getgle memorial at http://getgle.org