This is awesome project. For the last week I was developing essentially the same thing, but with F# as shell/REPL language. It's not yet ready to be open-source

This is awesome project. For the last week I was developing essentially the same thing, but with F# as shell/REPL language. It's not yet ready to be open-sourced but if there is any interest I can clean it up and move to Github in a week or so.