diff --git a/flake.nix b/flake.nix
index 77bd2bb..e2803fb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,7 +27,11 @@
 
         # Common build inputs for all derivations
         commonArgs = {
-          src = pkgs.lib.cleanSourceWith { src = ./.; name = "source"; filter = path: type: (builtins.match ".*csv$" path != null || craneLib.filterCargoSources path type); };
+          src = pkgs.lib.cleanSourceWith {
+            src = ./.;
+            name = "source";
+            filter = path: type: (builtins.match ".*csv$" path != null || craneLib.filterCargoSources path type);
+          };
           strictDeps = true;
 
           buildInputs = with pkgs; [
@@ -64,20 +68,20 @@
             nativeBuildInputs = commonArgs.nativeBuildInputs;
 
             # Additional dev tools
-            packages = with pkgs; [
+            packages = [
               rustToolchain
-              rust-analyzer
+              pkgs.rust-analyzer
             ];
 
             RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library";
           };
 
           ci = pkgs.mkShell {
-            buildInputs = commonArgs.buildInputs ++ ([
+            buildInputs = commonArgs.buildInputs ++ [
               pkgs.nodePackages.markdown-link-check
               pkgs.nixpkgs-fmt
-              pkgs.rustToolchain
-            ]);
+              rustToolchain
+            ];
 
             nativeBuildInputs = commonArgs.nativeBuildInputs;
 
diff --git a/little_learner/src/auto_diff.rs b/little_learner/src/auto_diff.rs
index eede557..0ba0870 100644
--- a/little_learner/src/auto_diff.rs
+++ b/little_learner/src/auto_diff.rs
@@ -727,10 +727,10 @@ impl<A, Tag, const RANK: usize> RankedDifferentiableTagged<A, Tag, RANK> {
         }
     }
 
-    pub fn map2_tagged<'a, 'b, B, C, Tag2, Tag3, F>(
+    pub fn map2_tagged<'a, B, C, Tag2, Tag3, F>(
         self: &'a RankedDifferentiableTagged<A, Tag, RANK>,
         other: &'a RankedDifferentiableTagged<B, Tag2, RANK>,
-        f: &'b mut F,
+        f: &mut F,
     ) -> RankedDifferentiableTagged<C, Tag3, RANK>
     where
         F: FnMut(&Scalar<A>, Tag, &Scalar<B>, Tag2) -> (Scalar<C>, Tag3),
@@ -843,8 +843,7 @@ where
     F: FnMut(
         &[DifferentiableTagged<A, Tag>; PARAM_RANK],
     ) -> RankedDifferentiableTagged<A, Tag, RANK>,
-    A: ?Sized
-        + Clone
+    A: Clone
         + Hash
         + AddAssign
         + Add<Output = A>
diff --git a/little_learner/src/block.rs b/little_learner/src/block.rs
index f0bea64..ba2cb27 100644
--- a/little_learner/src/block.rs
+++ b/little_learner/src/block.rs
@@ -32,6 +32,7 @@ where
 }
 
 #[must_use]
+#[expect(clippy::type_complexity)]
 pub fn dense<'b, A, Tag>(
     input_len: usize,
     neuron_count: usize,