In fact, I believe I have nearly completed it. It really requires field testing to be certain, but I am afraid I am not likely to get the chance, given my partner's distaste for the project from its inception. Not that there isn't an element of practical concern for our safety in his reticence—a concern I share.
I do not know what my next project will be. It would be a shame not to put all that I've learned about electrical engineering to some use, though.