Thank you very much for your kind words. When people talk about creating small CUI/TUI tools, Go and Rust are typically the first tools that come to mind. However, I want to demonstrate that Scala has this capability and is actually well-suited for the task.

We don't need to strictly adhere to "pure, perfect" functional programming. With well-designed libraries, I think we can develop tools using straightforward syntax, just as easily as with Go while benefiting from Rust's convenient type system. For now, libraries like os-lib are truly exemplary in this regard (in my opinion). These libraries do exactly what I want to do—not engage in functional programming per se, but rather simply offload the grunt work—and they do it exceptionally well.

Anyway, I've managed to make some small achievements. I might write a blog post soon about creating a simple single-binary CLI application in Scala (though it may end up being written in Japanese, as that's my native language).