diff --git a/devenv.lock b/devenv.lock
index 1b827da0..7b0123a1 100644
--- a/devenv.lock
+++ b/devenv.lock
@@ -3,10 +3,10 @@
     "devenv": {
       "locked": {
         "dir": "src/modules",
-        "lastModified": 1728452860,
+        "lastModified": 1736426010,
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "e7a0bc559f5a66aaa42f5028db6162c4dd4587eb",
+        "rev": "1c384bc4be3ee571511fbbc6fdc94fe47d60f6cf",
         "type": "github"
       },
       "original": {
@@ -24,10 +24,10 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1728455642,
+        "lastModified": 1736490741,
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "3b47535a5c782e4f4ad59cd4bdb23636b6926e03",
+        "rev": "ff8cb1e6d1755aa3ace7c662f79f74882cc5022f",
         "type": "github"
       },
       "original": {
@@ -51,32 +51,10 @@
         "type": "github"
       }
     },
-    "git-hooks": {
-      "inputs": {
-        "flake-compat": "flake-compat",
-        "gitignore": "gitignore",
-        "nixpkgs": [
-          "nixpkgs"
-        ],
-        "nixpkgs-stable": "nixpkgs-stable"
-      },
-      "locked": {
-        "lastModified": 1733665616,
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "rev": "d8c02f0ffef0ef39f6063731fc539d8c71eb463a",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "type": "github"
-      }
-    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
-          "git-hooks",
+          "pre-commit-hooks",
           "nixpkgs"
         ]
       },
@@ -95,10 +73,10 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1728279793,
+        "lastModified": 1736320768,
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "f85a2d005e83542784a755ca8da112f4f65c4aa4",
+        "rev": "4bc9c909d9ac828a039f288cf872d16d38185db8",
         "type": "github"
       },
       "original": {
@@ -123,18 +101,24 @@
         "type": "github"
       }
     },
-    "nixpkgs-stable": {
+    "pre-commit-hooks": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
       "locked": {
-        "lastModified": 1733730953,
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "7109b680d161993918b0a126f38bc39763e5a709",
+        "lastModified": 1735882644,
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "a5a961387e75ae44cc20f0a57ae463da5e959656",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixos-24.05",
-        "repo": "nixpkgs",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
         "type": "github"
       }
     },
@@ -142,21 +126,18 @@
       "inputs": {
         "devenv": "devenv",
         "fenix": "fenix",
-        "git-hooks": "git-hooks",
         "nixpkgs": "nixpkgs",
         "nixpkgs-2305": "nixpkgs-2305",
-        "pre-commit-hooks": [
-          "git-hooks"
-        ]
+        "pre-commit-hooks": "pre-commit-hooks"
       }
     },
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1728386838,
+        "lastModified": 1736424758,
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "efaf8bd5de34e2f47bd57425b83e0c7974902176",
+        "rev": "cc016df54b03d8c1bbb1aae761da01dbfae5f126",
         "type": "github"
       },
       "original": {
diff --git a/tket2/src/circuit/command.rs b/tket2/src/circuit/command.rs
index 53f85e6e..4003557a 100644
--- a/tket2/src/circuit/command.rs
+++ b/tket2/src/circuit/command.rs
@@ -153,7 +153,7 @@ impl<'circ, T: HugrView> Command<'circ, T> {
     pub fn is_linear_port(&self, port: Port) -> bool {
         self.optype()
             .port_kind(port)
-            .map_or(false, |kind| kind.is_linear())
+            .is_some_and(|kind| kind.is_linear())
     }
 
     /// Returns a metadata value associated with the command's node.
diff --git a/tket2/src/serialize/pytket/param/encode.rs b/tket2/src/serialize/pytket/param/encode.rs
index 962dcfbc..76c30e09 100644
--- a/tket2/src/serialize/pytket/param/encode.rs
+++ b/tket2/src/serialize/pytket/param/encode.rs
@@ -18,10 +18,7 @@ pub fn fold_param_op(optype: &OpType, inputs: &[&str]) -> Option<String> {
     let param = match optype {
         OpType::Const(const_op) => {
             // New constant, register it if it can be interpreted as a parameter.
-            match try_constant_to_param(const_op.value()) {
-                Some(param) => param,
-                None => return None,
-            }
+            try_constant_to_param(const_op.value())?
         }
         OpType::LoadConstant(_op_type) => {
             // Re-use the parameter from the input.
diff --git a/uv.lock b/uv.lock
index 8c2b94fb..7b6d1401 100644
--- a/uv.lock
+++ b/uv.lock
@@ -7,7 +7,9 @@ members = [
     "tket2-eccs",
     "tket2-exts",
 ]
-requirements = [
+
+[manifest.dependency-groups]
+dev = [
     { name = "graphviz", specifier = ">=0.20,<0.21" },
     { name = "hypothesis", specifier = ">=6.111.1,<7" },
     { name = "maturin", specifier = ">=1.7.0,<2" },