base markdown book with code block syntax highlighting and fully embedded assets

build.rs

@@ -0,0 +1,15 @@
+use std::fs::{File, create_dir};
+use std::path::Path;
+
+fn main() {
+    let dest_path = Path::new("themes/Catppuccin-Macchiato.tmTheme");
+
+    if !dest_path.exists() {
+        let mut response = reqwest::blocking::get("https://raw.githubusercontent.com/catppuccin/bat/refs/heads/main/themes/Catppuccin%20Macchiato.tmTheme")
+            .expect("Failed to download theme");
+
+        create_dir("themes").expect("Could not create themes dir");
+        let mut file = File::create(dest_path).expect("Failed to create theme file");
+        std::io::copy(&mut response, &mut file).expect("Failed to save theme");
+    }
+}