I'm Anthony Frehner, a frontend web developer and architect. I like to contribute to open source when I have the time! I'm currently working on Hydrogen and maintaining the Modern Guide to Packaging Your JavaScript Library 🙂
I've recently been providing feedback on a WICG proposal for which I also spent some time making a polyfill. I am a core-team member of the single-spa open source library, I occasionally give conference talks - here's my talk at React Rally 2019 - and write technical articles, and I proposed a new CSS unit called vhc which eventually turned into the dvh, lvh, and svh (and equivalent *vw) CSS units, which was very exciting for me personally!