diff --git a/Makefile.toml b/Makefile.toml
index cbcbe568..f754d630 100644
--- a/Makefile.toml
+++ b/Makefile.toml
@@ -72,6 +72,10 @@ script = [
   # "nixpkgs-fmt --version",
   "actionlint --version",
   "typos --version",
+  "gh --version",
+  "jq --version",
+  "jnv --version",
+  "pinact --version",
 ]
 
 [tasks.check_no_git_diff]
diff --git a/flake.lock b/flake.lock
index 9ad311b8..a4e8c3e6 100644
--- a/flake.lock
+++ b/flake.lock
@@ -1,5 +1,21 @@
 {
   "nodes": {
+    "edge-nixpkgs": {
+      "locked": {
+        "lastModified": 1712163089,
+        "narHash": "sha256-Um+8kTIrC19vD4/lUCN9/cU9kcOsD1O1m+axJqQPyMM=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "fd281bd6b7d3e32ddfa399853946f782553163b5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -20,22 +36,23 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1712163089,
-        "narHash": "sha256-Um+8kTIrC19vD4/lUCN9/cU9kcOsD1O1m+axJqQPyMM=",
+        "lastModified": 1712168706,
+        "narHash": "sha256-XP24tOobf6GGElMd0ux90FEBalUtw6NkBSVh/RlA6ik=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "fd281bd6b7d3e32ddfa399853946f782553163b5",
+        "rev": "1487bdea619e4a7a53a4590c475deabb5a9d1bfb",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "ref": "nixos-23.11",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "root": {
       "inputs": {
+        "edge-nixpkgs": "edge-nixpkgs",
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs"
       }
diff --git a/flake.nix b/flake.nix
index 5af4a2bc..2ed66e30 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,14 +5,16 @@
     #   - https://discourse.nixos.org/t/differences-between-nix-channels/13998
     # How to update the revision
     #   - `nix flake update --commit-lock-file` # https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-flake-update.html
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
+    edge-nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, flake-utils }:
+  outputs = { self, nixpkgs, edge-nixpkgs, flake-utils }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
+        edge-pkgs = edge-nixpkgs.legacyPackages.${system};
       in
       {
         devShells.default = with pkgs;
@@ -24,16 +26,21 @@
               nil
               nixpkgs-fmt
 
-              nodejs_20
-              deno
-              dprint
               cargo-make
-              typos
-              actionlint
+
+              edge-pkgs.nodejs_20
+              edge-pkgs.deno
+              edge-pkgs.dprint
+              edge-pkgs.typos
+
+              # Helper for writing and linting actions
+              edge-pkgs.actionlint
+              edge-pkgs.pinact
 
               # For fighting the GitHub API
               gh
               jq
+              edge-pkgs.jnv
             ];
           };
       });