Macro assets 

assets!() { /* proc-macro */ }

Compiles a directory into the binary as a described asset set.

kynos::assets! {
    /// The built single-page app.
    pub struct Site;
    dir = "dist",
    exclude = [".map"],
    warn_over = "4MiB",
}

dir resolves against CARGO_MANIFEST_DIR. Every file becomes an include_bytes!, so changing one rebuilds the crate; adding or removing one does not, which a cargo::rerun-if-changed line in build.rs closes.

A file whose name no path template can express is a compile error naming it, because a static asset Kynos cannot describe is one it will not serve. Dotfiles and symlinks are skipped: the first keeps .git out of a binary, the second keeps a set inside its own directory.

An embedded set past 2 MiB emits a compiler warning at the dir literal. Raise the threshold with warn_over = "8MiB", or turn it off with warn_over = "none". Under -D warnings it becomes an error, which is arguably right and is exactly why the override exists.