Hey! Lovely work on your app! I am personally building my own Breaktimer app using rust, and i needed a user idle feature. I realized there's a user-idle crate but it's missing wayland support so i tried to build my own, but then I stumbled upon your implementation, which was superb! Sorry for yanking it 😄

TLDR; While testing your logic for the is_wayland fn, I realized there is a bug in it.

Please correct me if I'm wrong, but I believe the logic on here should be:

    if let Ok(true) = env::var("XDG_SESSION_TYPE").map(|v| v == "wayland") {

instead of:

    if let Ok(_) = env::var("XDG_SESSION_TYPE").map(|v| v == "wayland") {

To basically check the boolean, as the 2nd approach simply ignores any returned value. I am new to rust and this is my first project so I may be drastically wrong.

On the off chance that I'm right, I'm happy to open a PR to fix it.