I figured I'd leave this here: I rebuild Iosevka with the Haskell ligature mode on default. I use this for a lot of things (although recently it's gotten no use as I've been working in Emacs).
Since it's a bit of a process to rebuild Iosevka, I just bundled the artifacts: https://goo.gl/gsFm8P
(Please excuse the redirection, this got a LOT of downloads and I have a big azure credit so I hosted it there and youw ould not believe what a pain it is to host simple linkable files on Azure).