acktually, traditionally, 'batteries' referred to two or more cells. This keeps with the etymology of the word as an emplacement of cannon or guns. If OP meant a single cell, they should have written 'cell', not the singular 'battery'.
Another way to look at it is that Ctrl+G takes the code (ASCII) of G, i.e., 71 (binary 1000111) and toggles its 7th least significant bit to get 7 (binary 111) and indeed 7 is the code of the BEL character.
This explanation is over-simplified though. In practice, different systems have used different techniques to derive control codes from key chords. I have a more detailed article about this at https://susam.net/blog/control-escape-meta-tricks.html if anyone is interested to read it.
You are not owed a license. You are not owed neither software nor hardware. If you don't like it, re-create all the work, but don't plagiarize, and release it under whatever open source software you want.
Half the time people with new projects just forget to choose one. He could put up a completely non commercial license if he wanted. It doesn't even have a copyright notice right now, making simply overlooking that so far the most plausible explanation.
That's correct; it's far from finished - I just chucked it up on Github to show it to some interested folks and get some review on the design. Didn't expect it to actually get attention.
The plan is that once it's working to my satisfaction, I'll do a small production run and release the designs under some kind of open hardware license. I'm not particularly interested in making money off it beyond covering my costs.
Your initial statement kinda reminds me of those hobby game development projects that get stuck at choosing an engine/tooling and never build an actual game.
Favorite Dale story: I had a booth at the first Maker Faire. As things were closing down on the last night, I was waiting at the front gate for a taxi back to the hotel. Dale saw me, and with no idea of if I was a presenter or an attendee, and no idea of where I was going, offered to drive me wherever I needed to go. Just pure awesome.
Growing up, on the playground, you said, "actually what you just said is a symbol of power of the Roman consuls, so I will take that as a compliment.", didn't you?
https://bbenchoff.github.io/pages/MacSSL.html