Multiple changes:

- deb: can use ppa as dependency
- deb: cross and regular are using parallel nocheck builds
- deb: ephemeral will not pull keyring if no root powers

src/deb/ephemeral.rs

@@ -124,14 +124,21 @@ impl EphemeralContextGuard {
             .status()?;
 
         // Make sure we have the right apt keyrings to mmdebstrap the chroot
-        crate::apt::keyring::download_trust_keyring(Some(ctx.clone()), series).await?;
+        // Check for root privileges before downloading keyring
+        if crate::utils::root::is_root()? {
+            crate::apt::keyring::download_trust_keyring(Some(ctx.clone()), series).await?;
+        } else {
+            log::info!(
+                "Lacking root privileges. Please ensure that the keyrings for the target distribution are present on your system."
+            );
+        }
 
         // Use mmdebstrap to download the tarball to the cache directory
         let status = ctx
             .command("mmdebstrap")
             .arg("--variant=buildd")
             .arg("--mode=unshare")
-            .arg("--include=mount")
+            .arg("--include=mount,curl,ca-certificates")
             .arg("--format=tar")
             .arg(series)
             .arg(tarball_path.to_string_lossy().to_string())