I remember learning ADA at uni in the 90s and not loving it because of the syntax and it being slow to work with. I also remember the Arianne 5 rocket crash in the late 90s being blamed for a software bug, and the software being written in ADA. Now i understand that it was not a pure software issue, but still, all that safety did not prevent the major disaster that it was
I agree that "design" in the title is misleading. The main novelty of this cube is that it balances itself etc, and that was thought of and designed 12 years ago at ETH.
Nonetheless, incredible work by the OP - "I built a cube that balances itself" is already extremely impressive
The Mac Portable was my first computer, which my dad brought back from work but never used. It was on this machine that I learned how to program, starting with Basic (I believe it was MS-Basic back then) and then moving on to Hypercard. Those were the days when knowledge was gained through magazines and the accompanying floppy disks, loaded with shareware. What a remarkable era it was, and how much progress we have made since then!
The Darwin kernel in OSX has more than userland code taken from FreeBSD. "The kernel of Darwin is XNU, a hybrid kernel which uses OSFMK (Open Software Foundation Mach Kernel) from the OSF, various elements of FreeBSD (including the process model, network stack, and virtual file system)" [0]
As mentioned previously, "When Wizard Stay Up Late - The Origins of the Internet" is considered by many as the authoritative text on how the Internet came to be.
For more technical aspects and if you're inclined to sift through tons of emails, mailing lists archives may be of interest
One thing which I've done and which has worked somehow, is to give it away to artists out there.
Make a list of artists (musicians in your case) which you think would like your app. Do some serious research to some contact detail for them. You then write to them and offer them the app for free, through a coupon code. Ask them for feedback. Write casually, like the indie dev that you are.
If they like your app, it's likely they will talk about it, and generate some buzz, which hopefully some blogs / sites will pick on.
And be ambitious with the artist list, send it to top people !!