Earlier quoted context omitted.
Thanks, not really trying to do that, more built it out of frustration. I've heard this can be an advantage in an interview to essentially sell 'look what I built in my down time' etc - Who knows.
Totally, it's good to have projects or a portfolio, it's not so much to have marketing & payment pages or look like it's an early startup
I have also been burnt with employees leaving to start their own thing, but that's more the exception compared to engineers who don't deliver much value because they're not actually interested in building stuff or only interested in the programming part of building stuff.