I love the feel of madness this has going on, but it begins to feel a bit cliched with the last line I think. It just sounds like something I’ve heard many times before.
The imagery of the cluttered house with the tools and dust very much appealed to me. Maybe I can relate to it. Although, for me it would be motherboards and CPUs laying around.
I also enjoy the feeling of madness you were able to portray. The image in my head of this man, frantic and obsessed, is vivid.