I realize that TMK is fairly easy to use, if you have some programming knowledge and or at least a mind for it. And there is the
this wonderful piece. But what do you do if you don't have any experience with coding or have a custom layout. Right now there are really only two options. Either learn/stumble your way through coding, or ask someone to help/commission someone to do it for you.
This brings me to my question. How difficult would it be to write up something similar to the AVR piece but with a spreadsheet. Think of it this way. You go to the website or download the software. In the UI there is a spread sheet with the first row and column is where you want what pins. From here you would input the layout on your proposed keyboard for a hand wired matrix. This would be done as it would appear electrically in the matrix. Hit the "Go" button and bam you have the hex file to flash to your controller.
I did follow Matt3o's guide and I ended lost. This is through no fault of Matt3o's guide in any way. Just my lack of knowledge and understanding of the importance of syntax input. I feel this would lend greatly to the enlightenment that a custom board of your personal layout can bring.
From what I gathered in his guide, the only things that really need to be input is controller chip, pins of corresponding rows and columns, and what you want each key to do.
I am not asking for someone to make this, though I think it would be amazing, simply wondering how difficult it would be in reality for this to become a possibility.