pub fn main() void {
    const stdout = std.io.getStdOut().writer();
    stdout.print("Hello, World!\n", .{}) catch unreachable;
}

That’s it. No macros. No build.rs. No Cargo screaming about outdated crates.

I’m not far enough in to say anything on memory safety, but in nim-lang it’s just:

echo("Hello World!")

(or even just echo "Hello World!")

I don’t know if anything else compares on simplicity unless maybe script languages with JIT are actually effective (Python no-gil etc), but even then I think I’d probably miss the flexibility that UFCS offers (maybe the standard library as well, at least I assume they wouldn’t be as powerful).