I have played with Ratatouille too. Here is a tool I’ve built using it → reorder_migrations.exs · GitHub. I agree, it is a nice way to build console apps. It has high-level components, however, I still had to write some low-level manipulations just to display content nicely. While doing this I realized I miss web browser behaviour 
Unfortunately, the library seems to be abandoned. termbox, which is a heart of the Ratatouille, has the following banner in its README
This library is no longer maintained. It’s pretty small if you have a big project that relies on it, just maintain it yourself. Or look for forks. Or look for alternatives. Or better - avoid using terminals for UI. Never the less, thanks to all who ever contributed.
