Just want to say, you did all the right things: Simple instructions, to the point and, and I can't stress this enough - examples. Like 9/10 when someone shares their language, they have little to no examples and it's the first thing people ask for.
I do think you could probably have a few more examples that are like the calculator and less of what's basically a one liner.
On the language: I like what's there so far. It's clean minimalist, and familiar.
The problem is that there's not really a USP that I can see. I get the rust but with reference counting, but I don't think that's even close to enough. There has to be a really really good reason for people to try and use a new programming language. And I don't really see the overall vision beyond a small hobby project (which is fine if that's what you were aiming for)
> Missing a killer feature?
Yes, very much so.