There are a few threads you can search on here for help with building bcrypt on Windows. For example Error compiling :bcrypt_elixir and :argon_elixir
Also, the wiki page here: https://github.com/riverrun/comeonin/wiki/Requirements describes the pre-requisites for getting comeonin and bcrypt to build.
I’m developing Elixir on Win 10 fine without WSL. That’s the least of my worries with Win 10 to be honest. I also use Kubuntu & Mac regularly and Win 10 is my least favourite, but works fine.
