diff --git a/flake.lock b/flake.lock
index 4e16d41..4d7ad24 100644
--- a/flake.lock
+++ b/flake.lock
@@ -18,25 +18,55 @@
         "type": "github"
       }
     },
+    "nh2pkgs": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1718490232,
+        "narHash": "sha256-0Fh3aJZuTJVmiiKY/5SyvHlfhZ3HeZTDUQnd+Fx6/Qo=",
+        "type": "tarball",
+        "url": "https://github.com/nh2/nixpkgs/archive/ede5282c487a1fd2de64303ba59adad6726f1225.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/nh2/nixpkgs/archive/ede5282c487a1fd2de64303ba59adad6726f1225.tar.gz"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1734566935,
-        "narHash": "sha256-cnBItmSwoH132tH3D4jxmMLVmk8G5VJ6q/SC3kszv9E=",
+        "lastModified": 1738797219,
+        "narHash": "sha256-KRwX9Z1XavpgeSDVM/THdFd6uH8rNm/6R+7kIbGa+2s=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "087408a407440892c1b00d80360fd64639b8091d",
+        "rev": "1da52dd49a127ad74486b135898da2cef8c62665",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "type": "github"
+        "id": "nixpkgs",
+        "type": "indirect"
       }
     },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nh2pkgs": "nh2pkgs",
+        "nixpkgs": "nixpkgs",
+        "static-haskell-nix": "static-haskell-nix"
+      }
+    },
+    "static-haskell-nix": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1718492291,
+        "narHash": "sha256-XbBHPJk3ln+uLW+Dsio7vJNYnsHhmqenbI7cLsP8kHg=",
+        "owner": "nh2",
+        "repo": "static-haskell-nix",
+        "rev": "481e7d73ca624278ef0f840a0a2ba09e3a583217",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nh2",
+        "repo": "static-haskell-nix",
+        "type": "github"
       }
     },
     "systems": {
diff --git a/flake.nix b/flake.nix
index bd68a9d..d4b7936 100644
--- a/flake.nix
+++ b/flake.nix
@@ -2,7 +2,7 @@
   description = "tricu";
 
   inputs = {
-    nixpkgs = {
+    nh2pkgs = {
       url = "https://github.com/nh2/nixpkgs/archive/ede5282c487a1fd2de64303ba59adad6726f1225.tar.gz";
       type = "tarball";
       flake = false;
@@ -11,48 +11,47 @@
       url = "github:nh2/static-haskell-nix";
       flake = false;
     };
+    flake-utils.url = "github:numtide/flake-utils";
   };
 
-  outputs = { self, nixpkgs, static-haskell-nix }:
-    let
-      system = "x86_64-linux";
-      compiler = "ghc948";
-      packageName = "tricu";
+  outputs = { self, flake-utils, nh2pkgs, nixpkgs, static-haskell-nix }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        compiler = "ghc948";
+        packageName = "tricu";
 
-      overlay = self: super: {
-        haskell = super.haskell // {
-          packages = super.haskell.packages // {
-            ${compiler} = super.haskell.packages.${compiler}.override {
-              overrides = final: prev: {
-                ${packageName} = prev.callCabal2nix packageName ./. {};
+        overlay = self: super: {
+          haskell = super.haskell // {
+            packages = super.haskell.packages // {
+              ${compiler} = super.haskell.packages.${compiler}.override {
+                overrides = final: prev: {
+                  ${packageName} = prev.callCabal2nix packageName ./. {};
+                };
               };
             };
           };
         };
-      };
 
-      overlays = [overlay];
+        overlays = [overlay];
 
-      normalPkgs = import nixpkgs { inherit overlays system; };
+        pkgs = import nh2pkgs { inherit overlays system; };
 
-      survey = import "${static-haskell-nix}/survey" { inherit compiler normalPkgs; };
+        survey = import "${static-haskell-nix}/survey" { inherit compiler pkgs; };
 
-      tricuStatic = survey.haskellPackages.${packageName};
+        tricuStatic = survey.haskellPackages.${packageName};
 
-    in {
-      packages.${system}.default = tricuStatic;
+      in {
+        packages.default = tricuStatic;
 
-      devShells.default = normalPkgs.mkShell {
-        buildInputs = with normalPkgs; [
-          normalPkgs.haskellPackages.cabal-install
-          normalPkgs.haskellPackages.ghc-events
-          normalPkgs.haskellPackages.ghcid
-          normalPkgs.upx
-        ];
-        inputsFrom = builtins.attrValues self.packages.${system};
-      };
-
-      devShell = self.devShells.${system}.default;
-    };
+        devShells.default = pkgs.mkShell {
+          buildInputs = with survey; [
+            haskellPackages.cabal-install
+            haskellPackages.ghc-events
+            haskellPackages.ghcid
+          ] ++ [pkgs.upx];
+          inputsFrom = builtins.attrValues self.packages.${system};
+        };
+        devShell = self.devShells.${system}.default;
+      });
 }
 
diff --git a/tricu.cabal b/tricu.cabal
index 7c85a0f..02a2e53 100644
--- a/tricu.cabal
+++ b/tricu.cabal
@@ -1,7 +1,7 @@
 cabal-version: 1.12
 
 name:           tricu
-version:        0.18.0
+version:        0.18.1
 description:    A micro-language for exploring Tree Calculus
 author:         James Eversole
 maintainer:     james@eversole.co