I have a hosted Wordpress blog running on my own domain. I've recently considered trying to build a custom URL shortener (a la bit.ly) that I manage and control using a very short domain. I'm wondering how I can achieve this.
I want this: http://nerdgap.com/some-made-up-post-here/
To shorten to this: http://g4p.it/23 (where 23 is the Worpress post ID).
Is this possible? How can I go about it?