diff --git a/Cargo.toml b/Cargo.toml
index 50ed082..5b3902b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -64,7 +64,7 @@ rlimit = "0.11"
 
 
 # Bluetooth
-btleplug = "0.12"
+btleplug = { version = "0.12", optional = true }
 
 # WPair migrated from ratatui+crossterm TUI to rustyline REPL — deps removed.
 
@@ -163,3 +163,7 @@ strip = true
 inherits = "release"
 lto = "thin"           # Faster than fat LTO
 codegen-units = 4      # Parallel codegen
+
+[features]
+default = ["bluetooth"]
+bluetooth = ["dep:btleplug"]
diff --git a/build.rs b/build.rs
index 72e88eb..2b6091e 100644
--- a/build.rs
+++ b/build.rs
@@ -16,6 +16,9 @@ fn main() {
         return;
     }
 
+    // Check which features are enabled
+    let features = Features::detect();
+
     // Discover categories dynamically from subdirectories of src/modules/
     let mut categories: Vec<String> = Vec::new();
     let entries = match fs::read_dir(modules_root) {
@@ -31,6 +34,11 @@ fn main() {
         if path.is_dir() {
             if let Some(name) = path.file_name().and_then(|n| n.to_str()) {
                 if !name.starts_with('.') {
+                    // Skip categories that are entirely disabled
+                    if features.should_skip_category(name) {
+                        println!("cargo:warning=Skipping category '{}' (feature disabled)", name);
+                        continue;
+                    }
                     categories.push(name.to_string());
                 }
             }
@@ -42,6 +50,9 @@ fn main() {
     for cat in &categories {
         println!("cargo:rerun-if-changed=src/modules/{}", cat);
     }
+    
+    // Also rerun if features change
+    println!("cargo:rerun-if-env-changed=CARGO_FEATURE_BLUETOOTH");
 
     // Compile regexes once, reuse across all categories.
     let run_re = Regex::new(r"pub\s+async\s+fn\s+run\s*\(\s*[^)]*:\s*&str\s*\)")
@@ -60,7 +71,7 @@ fn main() {
         let out_file = format!("{}_dispatch.rs", dispatch_name(cat));
         let display_name = capitalize(cat);
 
-        match generate_dispatch(&root, &out_file, &mod_prefix, &display_name, &run_re, &info_re, &check_re) {
+        match generate_dispatch(&root, &out_file, &mod_prefix, &display_name, &run_re, &info_re, &check_re, &features) {
             Ok(_module_count) => {
                 registry_entries.push(RegistryEntry {
                     category: cat.clone(),
@@ -81,6 +92,40 @@ fn main() {
     }
 }
 
+/// Feature detection and module filtering
+struct Features {
+    bluetooth: bool,
+}
+
+impl Features {
+    fn detect() -> Self {
+        Self {
+            bluetooth: env::var("CARGO_FEATURE_BLUETOOTH").is_ok(),
+        }
+    }
+    
+    /// Check if a category should be entirely skipped
+    fn should_skip_category(&self, category: &str) -> bool {
+        match category {
+            "bluetooth" => !self.bluetooth,
+            _ => false,
+        }
+    }
+    
+    /// Check if a module path should be skipped (for feature-gated submodules)
+    fn should_skip_module(&self, module_path: &str) -> bool {
+        // If bluetooth feature is disabled, skip any module under bluetooth/
+        if !self.bluetooth && module_path.starts_with("bluetooth/") {
+            return true;
+        }
+        
+        // Add more feature checks here as needed
+        // Example: if !self.some_feature && module_path.starts_with("some/path/")
+        
+        false
+    }
+}
+
 struct RegistryEntry {
     category: String,
     dispatch_name: String,
@@ -118,6 +163,7 @@ fn generate_dispatch(
     run_re: &Regex,
     info_re: &Regex,
     check_re: &Regex,
+    features: &Features,
 ) -> Result<usize, Box<dyn std::error::Error>> {
     let out_dir = env::var("OUT_DIR").map_err(|_| "OUT_DIR environment variable not set")?;
     let dest_path = Path::new(&out_dir).join(out_file);
@@ -127,7 +173,7 @@ fn generate_dispatch(
         return Err(format!("Module directory '{}' does not exist", root).into());
     }
 
-    let mappings = find_modules(root_path, run_re, info_re, check_re)?;
+    let mappings = find_modules(root_path, run_re, info_re, check_re, features)?;
 
     // Sort for deterministic output
     let mut sorted_mappings: Vec<_> = mappings.into_iter().collect();
@@ -411,6 +457,7 @@ fn find_modules(
     run_re: &Regex,
     info_re: &Regex,
     check_re: &Regex,
+    features: &Features,
 ) -> Result<HashSet<ModuleMapping>, Box<dyn std::error::Error>> {
     let mut mappings = HashSet::new();
 
@@ -422,6 +469,12 @@ fn find_modules(
 
             if let Ok(relative) = path.strip_prefix(root) {
                 let rel_str = relative.with_extension("").to_string_lossy().replace("\\", "/");
+                
+                // Skip modules that are feature-gated out
+                if features.should_skip_module(&rel_str) {
+                    println!("cargo:warning=Skipping module '{}' (feature disabled)", rel_str);
+                    continue;
+                }
 
                 let mut content = String::new();
                 if File::open(path).and_then(|mut f| f.read_to_string(&mut content)).is_ok() {
diff --git a/src/mcp/server.rs b/src/mcp/server.rs
index 6b921f5..8e0d3d5 100644
--- a/src/mcp/server.rs
+++ b/src/mcp/server.rs
@@ -7,23 +7,38 @@ use super::types::{
     ServerInfo, ToolsCapability,
 };
 
+// You can place this function in src/mcp/server.rs or a shared utility module
+fn errno() -> i32 {
+    unsafe {
+        #[cfg(any(target_os = "freebsd", target_os = "macos"))]
+        { *libc::__error() }
+
+        #[cfg(target_os = "linux")]
+        { *libc::__errno_location() }
+
+        // Add fallbacks for other OSes if needed
+        #[cfg(not(any(target_os = "freebsd", target_os = "macos", target_os = "linux")))]
+        { 0 } // Or compile_error! to force checking for a new OS
+    }
+}
+
 fn isolate_protocol_stdout() -> anyhow::Result<tokio::fs::File> {
     use std::os::fd::FromRawFd;
     unsafe {
         let saved_fd = libc::dup(1);
         if saved_fd < 0 {
-            anyhow::bail!("dup(1) failed: errno {}", *libc::__errno_location());
+            anyhow::bail!("dup(1) failed: errno {}", errno());
         }
         let null_path = b"/dev/null\0";
         let null_fd = libc::open(null_path.as_ptr() as *const libc::c_char, libc::O_WRONLY);
         if null_fd < 0 {
             libc::close(saved_fd);
-            anyhow::bail!("open(/dev/null) failed: errno {}", *libc::__errno_location());
+            anyhow::bail!("open(/dev/null) failed: errno {}", errno());
         }
         if libc::dup2(null_fd, 1) < 0 {
             libc::close(null_fd);
             libc::close(saved_fd);
-            anyhow::bail!("dup2(null, 1) failed: errno {}", *libc::__errno_location());
+            anyhow::bail!("dup2(null, 1) failed: errno {}", errno());
         }
         libc::close(null_fd);
         let std_file = std::fs::File::from_raw_fd(saved_fd);
diff --git a/src/modules/exploits/dos/null_syn_exhaustion.rs b/src/modules/exploits/dos/null_syn_exhaustion.rs
index b136b81..c1e8dae 100644
--- a/src/modules/exploits/dos/null_syn_exhaustion.rs
+++ b/src/modules/exploits/dos/null_syn_exhaustion.rs
@@ -318,7 +318,7 @@ fn sendmmsg_batch(
         msg
     }).collect();
 
-    let ret = unsafe { libc::sendmmsg(fd, msgs.as_mut_ptr(), count as u32, 0) };
+    let ret = unsafe { libc::sendmmsg(fd, msgs.as_mut_ptr(), (count as u32).try_into().unwrap(), 0) };
     if ret < 0 {
         let errno = std::io::Error::last_os_error().raw_os_error().unwrap_or(0);
         (0, Some(errno))
diff --git a/src/modules/exploits/mod.rs b/src/modules/exploits/mod.rs
index 5b46100..88807e6 100644
--- a/src/modules/exploits/mod.rs
+++ b/src/modules/exploits/mod.rs
@@ -1,4 +1,3 @@
-pub mod bluetooth;
 pub mod cameras;
 pub mod cowrie;
 pub mod crypto;
@@ -20,3 +19,6 @@ pub mod vnc;
 pub mod voip;
 pub mod webapps;
 pub mod windows;
+
+#[cfg(feature = "bluetooth")]
+pub mod bluetooth;
diff --git a/src/modules/exploits/routers/palo_alto/panos_authbypass_cve_2025_0108.rs b/src/modules/exploits/routers/palo_alto/panos_authbypass_cve_2025_0108.rs
index 4c29cfa..4f570ad 100644
--- a/src/modules/exploits/routers/palo_alto/panos_authbypass_cve_2025_0108.rs
+++ b/src/modules/exploits/routers/palo_alto/panos_authbypass_cve_2025_0108.rs
@@ -33,7 +33,6 @@ use reqwest::Client;
 use std::{
     fs::File,
     io::{BufRead, BufReader},
-    process::Command,
     time::Duration,
 };
 use url::Url;