V has been open-sourced

What I don't get about Vlang is what niche it tries to fill. The docs compare it to Go and Rust, bindings to C/C++ are emphasized as well as, on the other hand, the possibility to compile without libc.

Then there is Volt, the messenger app that emphasizes performance and is only 300kb in size -- while using native toolkits like Gtk+, which means it probably consumes the C API and thus needs to be dynamically linked to Glib, libc, libgtk et al.

So why should I choose Vlang for my next project? I can write sane Gtk applications with gtkmm and basic C++. If I don't like C++ at all, I choose Rust or Golang. Or I choose C and something like ulibc. What essential advantage is provided by Vlang?