imtui VS viper

Check this out - https://github.com/ggerganov/imtui - it's imgui for tui, and I guess one can compile it as wasm and run there!

Curses is the de facto TUI base, but there is no de facto standard C++ wrapper around curses. Google has FlatUI, FTXUI and Notcurses are popular, imtui is directly inspired by Dear ImGui. The list goes on and on, there are plenty of popular TUI libraries that all build upon Curses.

This can be as easy as wrapping a simple stdin/stdout loop with rlwrap, all the way to using full featured TUI libraries like bubbletea (golang), textual (python) or imtui (c++).

Second case is trickier. You probably want to check imtui or similar APIs.

imtui

I wouldn't call it standard, but https://github.com/ggerganov/imtui is pretty cool. It puts https://github.com/ocornut/imgui over ncurses.

Once environment variables are setup we need load them into our project. For this this i will use viper

The code uses Viper to load configuration files in the application.

github.com/spf13/viper

Instead of directly accessing environment variables with os.Getenv(), integrating a configuration handler like viper might make it maintainable.

I guess most people are using https://github.com/spf13/viper but I don't know if I should read everything from

Use Viper for config file or environmental variable configuration -- it's going to save you a whole lot of time.

Cobra and Viper.

I've mostly been using https://github.com/spf13/viper of late for my go projects. It supports the standard config formats, (json, yaml, toml etc) and lets you override any value with a ENV value.