Kjk
For now it's a light-weight application that uses WebKit view on Mac and WebBrowser control on Windows. Electron would be a good option too. It's a much bigger download but would give a consistent rendering engine (no need to worry about testing in multiple browser). It's a possibility in the future.
Kjk
It was a pragmatic decision. It's free, it's good looking and it provides a little bit more exposure than a stand-alone blog. What made me consider medium was m.signalvnoise.com...