How to put a Mac mini in a Mac SE / 30
This post reminds me of the joke of: How would you put four elephants in a six hundred? Only in a computer version and, to be honest, with a much easier and more elegant solution. In Gizmodo they have published a photo gallery of a Mac mini working within a Mac SE / 30.
Taking advantage of one of the front ventilation slots, you can insert the discs into the Mac mini, and in the back they have made some openings to have access to the ports USB, food, etc. They have also had to replace the CRT original by one that supports signals RGB.
Too bad the graphics card of the Mac mini do not support two different desktops. It would be nice to have some widgets on the screen of the SE30, and continue working with an external monitor.