GOCUI
Minimalist Go package aimed at creating Console User Interfaces
...GOCUI provides users with a minimalist API and views (the "windows" in the GUI) implement the interface io.ReadWriter. GOCUI offers support for overlapping views. The GUI can be modified at runtime (concurrent-safe) and it also provides both global and view-level keybindings. GOCUI provides mouse support features, colored text options and a customizable edition mode. It is easy to build, and it's extremelly easy to create reusable widgets, complex layouts, and more.