Do also note that there is a *nix "subsystem" on Win10 since a while. I tried it and you can currently run ubuntu there or a ubuntu-like system.
This is of course not 100% the same as an .exe but my point is that you can actually use ruby on windows now, even without an .exe file like
the rubyinstaller.
Apt-get works fine. I compiled ruby from source there, it works very well. It actually works better than the rubyinstaller.exe in my opinion. :D
I was surprised to see that because it also meant that I can use ruby on win10 now, compiling literally everything on a *nix subsystem using some
ruby scripts that I wrote once. Even xorg apps work to some extent if you use mingw or something like that; I have not gotten everything to work
yet, for example, ruby-gnome does not work very well right now, and kde konsole has some hiccups... but I am sure that in a few months, that will
work for just about everyone. Everything keeps getting better and better, hopefully. Ruby itself most likely anyway.
You also have full access to the windows filesystem e. g. under /mount/c/ path by default (the windows team said that this can be changed by the
user at a later time eventually... they are working on some compatbility stuff too; not everything works perfectly well, e. g. lspci has a
few problems to give just one example for more examples, but by and large, it really works surprisingly well).