Your examples are valid in Linux, but I was trying to launch anarki in Windows. So I've made windows batch file arc.cmd following arc.sh. Seems it works now. I have made a pull req to the repo.
...Only thing - how to port rlwrap to windows? And what (for what) is it? Better REPL formatting? :-)
rlwrap is just a little program which provides some standard features of Unix shells like commandline history and keyboard shortcuts. It's nice to have but certainly not essential.