diff --git a/attestation-ca/build.rs b/attestation-ca/build.rs
index 4435e79a..8df71d86 100644
--- a/attestation-ca/build.rs
+++ b/attestation-ca/build.rs
@@ -4,6 +4,7 @@ const OPENSSL_DOC: &str = "https://github.com/kanidm/webauthn-rs/blob/master/Ope
 
 fn main() {
     // LibreSSL reports as OpenSSL v2 (which was skipped).
+    #[allow(clippy::unusual_byte_groupings)]
     if number() < 0x2_00_00_00_0 {
         println!(
             r#"
diff --git a/base64urlsafedata/src/common.rs b/base64urlsafedata/src/common.rs
index 44e3fad2..c1bba047 100644
--- a/base64urlsafedata/src/common.rs
+++ b/base64urlsafedata/src/common.rs
@@ -15,6 +15,12 @@ macro_rules! common_impls {
             }
         }
 
+        impl Default for $type {
+            fn default() -> Self {
+                Self::new()
+            }
+        }
+
         impl std::ops::Deref for $type {
             type Target = Vec<u8>;
 
diff --git a/tutorial/wasm/src/lib.rs b/tutorial/wasm/src/lib.rs
index 5fc01316..78465c30 100644
--- a/tutorial/wasm/src/lib.rs
+++ b/tutorial/wasm/src/lib.rs
@@ -59,7 +59,7 @@ impl App {
             return AppState::Error("A username must be provided".to_string());
         }
 
-        self.last_username = username.clone();
+        self.last_username.clone_from(&username);
 
         // The fetch is done in a future/promise.
         ctx.link().send_future(async {
@@ -226,7 +226,7 @@ impl App {
             return AppState::Error("A username must be provided".to_string());
         }
 
-        self.last_username = username.clone();
+        self.last_username.clone_from(&username);
 
         // The fetch is done in a future/promise.
         ctx.link().send_future(async {
diff --git a/webauthn-authenticator-rs/src/ctap2/ctap21_cred.rs b/webauthn-authenticator-rs/src/ctap2/ctap21_cred.rs
index 7c40641a..e332386e 100644
--- a/webauthn-authenticator-rs/src/ctap2/ctap21_cred.rs
+++ b/webauthn-authenticator-rs/src/ctap2/ctap21_cred.rs
@@ -50,6 +50,7 @@ where
     ) -> Result<CredentialManagementResponse, WebauthnCError>;
 
     /// Send a [CredSubCommand] using a provided `pin_uv_auth_token` session.
+    #[allow(dead_code)]
     async fn cred_mgmt_with_session(
         &mut self,
         sub_command: CredSubCommand,
diff --git a/webauthn-rs-core/build.rs b/webauthn-rs-core/build.rs
index 6ad6d83f..d34d77cc 100644
--- a/webauthn-rs-core/build.rs
+++ b/webauthn-rs-core/build.rs
@@ -4,6 +4,7 @@ const OPENSSL_DOC: &str = "https://github.com/kanidm/webauthn-rs/blob/master/Ope
 
 fn main() {
     // LibreSSL reports as OpenSSL v2.
+    #[allow(clippy::unusual_byte_groupings)]
     if number() < 0x2_00_00_00_0 {
         println!(
             r#"
diff --git a/webauthn-rs-proto/src/options.rs b/webauthn-rs-proto/src/options.rs
index c2801082..41224112 100644
--- a/webauthn-rs-proto/src/options.rs
+++ b/webauthn-rs-proto/src/options.rs
@@ -3,6 +3,7 @@
 
 use base64urlsafedata::Base64UrlSafeData;
 use serde::{Deserialize, Serialize};
+use std::fmt::Display;
 use std::{collections::BTreeMap, str::FromStr};
 
 /// Defines the User Authenticator Verification policy. This is documented
@@ -163,8 +164,14 @@ impl FromStr for AuthenticatorTransport {
     }
 }
 
-impl ToString for AuthenticatorTransport {
-    fn to_string(&self) -> String {
+impl Display for AuthenticatorTransport {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.write_str(self.as_ref())
+    }
+}
+
+impl AsRef<str> for AuthenticatorTransport {
+    fn as_ref(&self) -> &'static str {
         use AuthenticatorTransport::*;
         match self {
             Usb => "usb",
@@ -175,7 +182,6 @@ impl ToString for AuthenticatorTransport {
             Hybrid => "hybrid",
             Unknown => "unknown",
         }
-        .to_string()
     }
 }
 
diff --git a/webauthn-rs-proto/src/wasm.rs b/webauthn-rs-proto/src/wasm.rs
index 4591acd3..d2ea57bb 100644
--- a/webauthn-rs-proto/src/wasm.rs
+++ b/webauthn-rs-proto/src/wasm.rs
@@ -3,6 +3,7 @@ use wasm_bindgen::prelude::*;
 
 #[wasm_bindgen]
 extern "C" {
+    /// Public Key Credential Extension
     pub type PublicKeyCredentialExt;
 
     #[wasm_bindgen(static_method_of = PublicKeyCredentialExt, js_class = "PublicKeyCredential", js_name = isConditionalMediationAvailable, catch)]