I build small, useful things and publish how they work.
YardFigure — six free calculators for home and garden projects: soil, mulch, gravel, concrete, sand and pavers. Enter three measurements, get the quantity in cubic yards, bags or tons. No signup.
I am a developer, not a contractor. That is exactly why every calculator shows its full working, why every depth figure names its source, and why the formulas are public — if you cannot check my numbers, you have no reason to trust them.
Beforehand — a mobile app. More soon.
Mostly JavaScript, HTML and CSS. Static sites, no frameworks, no build steps where I can avoid them.