Show HN: "Declarative” Sourdough Calculator

There's a bunch of sourdough calculators out there --- but one of the things I missed was the ability to just write that I wanted a loaf of total 800g weight, x% hydration, and have the final loaf consist of 20% spelt, 10% whole wheat and rest wheat for example. So, I decided to create a calculator like this for myself, and I thought I'd share it with you. Hope you find it useful!