diff --git a/whisper-cpp-2023/rust.d/Cargo.lock b/whisper-cpp-2023/rust.d/Cargo.lock
index dbb80de..52f9276 100644
--- a/whisper-cpp-2023/rust.d/Cargo.lock
+++ b/whisper-cpp-2023/rust.d/Cargo.lock
@@ -190,6 +190,15 @@ version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b9b1a3d5f46d53f4a3478e2be4a5a5ce5108ea58b100dcd139830eae7f79a3a1"
 
+[[package]]
+name = "rust-whisper"
+version = "0.1.0"
+dependencies = [
+ "tokio",
+ "wav",
+ "whisper-rs",
+]
+
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
@@ -250,15 +259,6 @@ dependencies = [
  "once_cell",
 ]
 
-[[package]]
-name = "whisper-cpp-er"
-version = "0.1.0"
-dependencies = [
- "tokio",
- "wav",
- "whisper-rs",
-]
-
 [[package]]
 name = "whisper-rs"
 version = "0.5.0"
diff --git a/whisper-cpp-2023/rust.d/src/main.rs b/whisper-cpp-2023/rust.d/src/main.rs
index ca0ae67..bb0d57d 100644
--- a/whisper-cpp-2023/rust.d/src/main.rs
+++ b/whisper-cpp-2023/rust.d/src/main.rs
@@ -7,7 +7,9 @@ fn main() {
 
    // create a params object
    let mut params = FullParams::new(SamplingStrategy::Greedy { best_of: 0 });
-   params.set_n_threads(4);
+   params.set_n_threads(
+      std::env::var("P").unwrap_or(String::from("1")).parse::<i32>().expect("$P must be a number")
+   );
    params.set_translate(false);
    params.set_language(Some("en"));
    params.set_print_special(false);