diff --git a/.woodpecker.yml b/.woodpecker.yml
index f1dd4a0..f9d5cf8 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -9,6 +9,15 @@ steps:
     when:
       - event: pull_request
 
+  cargo_shear:
+    image: *rust_nightly_image
+    commands:
+      - *install_binstall
+      - cargo binstall -y cargo-shear
+      - cargo shear
+    when:
+      - event: pull_request
+
   cargo_clippy:
     image: *rust_image
     environment:
diff --git a/Cargo.toml b/Cargo.toml
index a622fd4..1938e3c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -92,7 +92,6 @@ tower = { version = "0.5.2", optional = true }
 [dev-dependencies]
 anyhow = "1.0.95"
 axum = { version = "0.8.1", features = ["macros"] }
-axum-extra = { version = "0.10.0", features = ["typed-header"] }
 env_logger = "0.11.6"
 tokio = { version = "1.42.0", features = ["full"] }
 
diff --git a/src/activity_sending.rs b/src/activity_sending.rs
index 1c84757..4971485 100644
--- a/src/activity_sending.rs
+++ b/src/activity_sending.rs
@@ -136,8 +136,8 @@ impl SendActivityTask {
     }
 }
 
-pub(crate) async fn build_tasks<'a, Activity, Datatype, ActorType>(
-    activity: &'a Activity,
+pub(crate) async fn build_tasks<Activity, Datatype, ActorType>(
+    activity: &Activity,
     actor: &ActorType,
     inboxes: Vec<Url>,
     data: &Data<Datatype>,
diff --git a/src/fetch/object_id.rs b/src/fetch/object_id.rs
index 0e01bbf..136ec38 100644
--- a/src/fetch/object_id.rs
+++ b/src/fetch/object_id.rs
@@ -360,6 +360,7 @@ const _: () = {
     }
 };
 
+/// Internal only
 #[cfg(test)]
 #[allow(clippy::unwrap_used)]
 pub mod tests {
diff --git a/src/http_signatures.rs b/src/http_signatures.rs
index dd92d19..95d0a12 100644
--- a/src/http_signatures.rs
+++ b/src/http_signatures.rs
@@ -276,6 +276,7 @@ pub(crate) fn verify_body_hash(
     Ok(())
 }
 
+/// Internal only
 #[cfg(test)]
 #[allow(clippy::unwrap_used)]
 pub mod test {
@@ -378,6 +379,7 @@ pub mod test {
         assert_eq!(invalid, Err(Error::ActivityBodyDigestInvalid));
     }
 
+    /// Internal only, return hardcoded keypair for testing
     pub fn test_keypair() -> Keypair {
         let rsa = RsaPrivateKey::from_pkcs1_pem(PRIVATE_KEY).unwrap();
         let pkey = RsaPublicKey::from(&rsa);