Python too.

I never tried it, because it is 2d only: https://flathub.org/apps/io.github.dubstar_04.design

this is commonly used with a similar meaning to self in cases where self can’t be used because it is a reserved keyword.

Example:

    fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<St1::Item>> {
        let this = self.project();
        this.inner.poll_next(cx)
    }

https://github.com/rust-lang/futures-rs/blob/master/futures-util/src/stream/select.rs#L113-L116

I do run into them even though I use Rust for ~3 years now, but only in non-obvious cases, e. g. when all references to the borrowed data are dropped before the end of the function.

Rust would be some borrow checker compile error like

borrowed data escapes outside of associated function

argument requires that `'1` must outlive `'static`

Free standing functions in Java?! This can’t be true.

Still better than having to create a new class just to implement

public static void main(String[] args) {}

Relevant Fireship video: https://youtu.be/m4-HM_sCvtQ

You could also try micro, which is a terminal text editor with mouse support, syntax highlighting and many more features that you know from GUI text editors.

the hidden “trashbin”, .Trash-$(uid), invented by Ubuntu

This isn’t some “idiotic principle invented by Ubuntu”, it just follows the freedesktop.org Trash specification. For many users, it can be really beneficial, see also the spec’s introduction:

An ability to recover accidentally deleted files has become the de facto standard for today’s desktop user experience.

Users do not expect that anything they delete is permanently gone. Instead, they are used to a “Trash can” metaphor. A deleted document ends up in a “Trash can”, and stays there at least for some time — until the can is manually or automatically cleaned.

Whether an application like Prism Launcher should use the trash can or delete the files directly is an entirely different question.