diff --git a/devenv.lock b/devenv.lock
index bd0c7fbf..4f9c5ab8 100644
--- a/devenv.lock
+++ b/devenv.lock
@@ -3,10 +3,10 @@
     "devenv": {
       "locked": {
         "dir": "src/modules",
-        "lastModified": 1747543288,
+        "lastModified": 1769263214,
         "owner": "cachix",
         "repo": "devenv",
-        "rev": "3a8a52386bde1cf14fc2f4c4df80f91417348480",
+        "rev": "328752c05f1745c7f613689a9df0bd1ffc8f3922",
         "type": "github"
       },
       "original": {
@@ -24,10 +24,10 @@
         "rust-analyzer-src": "rust-analyzer-src"
       },
       "locked": {
-        "lastModified": 1747392669,
+        "lastModified": 1769323446,
         "owner": "nix-community",
         "repo": "fenix",
-        "rev": "c3c27e603b0d9b5aac8a16236586696338856fbb",
+        "rev": "f1cf6dcfc51a08e154ec753f11146dc1d95be1e5",
         "type": "github"
       },
       "original": {
@@ -39,14 +39,14 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1747046372,
-        "owner": "edolstra",
+        "lastModified": 1767039857,
+        "owner": "NixOS",
         "repo": "flake-compat",
-        "rev": "9100a0f413b0c601e0533d1d94ffd501ce2e7885",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
         "type": "github"
       },
       "original": {
-        "owner": "edolstra",
+        "owner": "NixOS",
         "repo": "flake-compat",
         "type": "github"
       }
@@ -60,10 +60,10 @@
         ]
       },
       "locked": {
-        "lastModified": 1747372754,
+        "lastModified": 1769069492,
         "owner": "cachix",
         "repo": "git-hooks.nix",
-        "rev": "80479b6ec16fefd9c1db3ea13aeb038c60530f46",
+        "rev": "a1ef738813b15cf8ec759bdff5761b027e3e1d23",
         "type": "github"
       },
       "original": {
@@ -80,10 +80,10 @@
         ]
       },
       "locked": {
-        "lastModified": 1709087332,
+        "lastModified": 1762808025,
         "owner": "hercules-ci",
         "repo": "gitignore.nix",
-        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "rev": "cb5e3fdca1de58ccbc3ef53de65bd372b48f567c",
         "type": "github"
       },
       "original": {
@@ -94,10 +94,10 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1746807397,
+        "lastModified": 1767052823,
         "owner": "cachix",
         "repo": "devenv-nixpkgs",
-        "rev": "c5208b594838ea8e6cca5997fbf784b7cca1ca90",
+        "rev": "538a5124359f0b3d466e1160378c87887e3b51a4",
         "type": "github"
       },
       "original": {
@@ -115,16 +115,17 @@
         "nixpkgs": "nixpkgs",
         "pre-commit-hooks": [
           "git-hooks"
-        ]
+        ],
+        "rust-overlay": "rust-overlay"
       }
     },
     "rust-analyzer-src": {
       "flake": false,
       "locked": {
-        "lastModified": 1747557850,
+        "lastModified": 1769335258,
         "owner": "rust-lang",
         "repo": "rust-analyzer",
-        "rev": "e464ff8c755c6e12540a45b83274ec4de4829191",
+        "rev": "2532c48f1ed25de1b90d0287c364ee4f306bec0e",
         "type": "github"
       },
       "original": {
@@ -133,6 +134,25 @@
         "repo": "rust-analyzer",
         "type": "github"
       }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1769396217,
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "e9bcd12156a577ac4e47d131c14dc0293cc9c8c2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/devenv.yaml b/devenv.yaml
index 1d180750..332d3264 100644
--- a/devenv.yaml
+++ b/devenv.yaml
@@ -6,3 +6,8 @@ inputs:
         follows: nixpkgs
   nixpkgs:
     url: github:cachix/devenv-nixpkgs/rolling
+  rust-overlay:
+    url: github:oxalica/rust-overlay
+    inputs:
+      nixpkgs:
+        follows: nixpkgs