Update dependencies and improve cache handling

Cargo.toml

@@ -5,13 +5,14 @@ edition = "2021"
 description = "A Hyperlight VMM wrapper with out-of-the-box support for running Nanvix microkernel guests"
 
 [dependencies]
-nanvix = { git = "https://github.com/nanvix/nanvix", rev = "7752e9f2deb4a5606f9885e4c130eec4ea583de1", features = [
+nanvix = { git = "https://github.com/nanvix/nanvix", rev = "cc9c508918bd17678e9d790f10a6a7c20b7902da", features = [
     "single-process",
     "hyperlight",
 ] }
 tokio = { version = "1.0", features = ["rt-multi-thread", "macros"] }
 anyhow = "1.0"
 clap = { version = "4", features = ["derive"] }
+dirs = "6"
 libc = "0.2.178"
 
 # NAPI bindings (optional)

src/bin/hyperlight-nanvix.rs

@@ -2,7 +2,6 @@ use anyhow::Result;
 use clap::{Parser, Subcommand};
 use hyperlight_nanvix::{cache, RuntimeConfig, Sandbox};
 use nanvix::log;
-use nanvix::registry::Registry;
 use std::path::PathBuf;
 
 /// A Hyperlight VMM wrapper with out-of-the-box support for running Nanvix microkernel guests
@@ -39,42 +38,40 @@ const DEFAULT_LOG_LEVEL: &str = "info";
 async fn setup_registry_command() -> Result<()> {
     println!("Setting up Nanvix registry...");
 
-    // Check cache status first using shared cache utilities
+    // Check cache status first using local filesystem probes
     let kernel_cached = cache::is_binary_cached("kernel.elf");
     let qjs_cached = cache::is_binary_cached("qjs");
     let python_cached = cache::is_binary_cached("python3");
 
     if kernel_cached && qjs_cached && python_cached {
         println!("Registry already set up at ~/.cache/nanvix-registry/");
     } else {
-        // Trigger registry download by requesting key binaries
-        let registry = Registry::new(None);
-
+        // Download missing binaries via get_cached_binary_path (local first, registry fallback)
         if !kernel_cached {
             print!("Downloading kernel.elf... ");
-            let _kernel = registry
-                .get_cached_binary("hyperlight", "single-process", "kernel.elf")
-                .await?;
+            cache::get_cached_binary_path("kernel.elf")
+                .await
+                .ok_or_else(|| anyhow::anyhow!("Failed to download kernel.elf"))?;
             println!("done");
         } else {
             println!("kernel.elf already cached");
         }
 
         if !qjs_cached {
             print!("Downloading qjs binary... ");
-            let _qjs = registry
-                .get_cached_binary("hyperlight", "single-process", "qjs")
-                .await?;
+            cache::get_cached_binary_path("qjs")
+                .await
+                .ok_or_else(|| anyhow::anyhow!("Failed to download qjs"))?;
             println!("done");
         } else {
             println!("qjs already cached");
         }
 
         if !python_cached {
             print!("Downloading python3 binary... ");
-            let _python = registry
-                .get_cached_binary("hyperlight", "single-process", "python3")
-                .await?;
+            cache::get_cached_binary_path("python3")
+                .await
+                .ok_or_else(|| anyhow::anyhow!("Failed to download python3"))?;
             println!("done");
         } else {
             println!("python3 already cached");