DIY as in real Do-It-Yourself from scratch.

I am racing a crapcan Ford Festiva, it used to be 1.3 but we have swapped a 1.8 into it. We are kinda doing fine as is, but for total domination we need a turbo. And a proper turbo build asks for an aftermarket engine control unit. Thing is, in the crapcan series you are supposed to be on budget, so commercial ECU is out of the question. I've checked what open source DIY options are around and they are "kinda blah", and since I am a software developer anyway I've decided to make my own engine control from scratch.

Here is a pic of the crapcan - there was a major bodywork upgrade since but this picture works better for the spirit of GRM :)