Similarly, my dad was a luthier for 15 years before passing away to cancer in 2022.
In the 5th grade, I wanted to learn guitar, so being the engineer he was, he built one. But needed machines first, and wood, and the garage.
Being an engineer instead of a business-minded operator prevented his work from becoming too well known but the instrument and what he accomplished was special.
Zuckerberg said something along the lines of if he would have sold facebook, he would have gone on to build another facebook Is that how you feel? Ive spent the past 10 years building my company, I dont feel like another venture could compare (for now)