diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 2d692e9..7f10ba0 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -1,34 +1,20 @@
-name: "Test"
+name: "Publish GH Pages"
 on:
-  pull_request:
   push:
+    branches:
+      - main
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.4
-    - uses: cachix/install-nix-action@v13
-      with:
-        nix_path: nixpkgs=channel:nixos-20.09
-    - run: nix-build --attr pages
-    - name: Artifact pages
-      uses: actions/upload-artifact@v2
-      with:
-        name: pages
-        path: result/docs
-  deploy:
-    if: github.ref == 'refs/heads/main'
-    runs-on: ubuntu-latest
-    needs: [build]
-    steps:
-    - uses: actions/checkout@v2.3.4
-    - name: Download artifact
-      uses: actions/download-artifact@v2
-      with:
-        name: pages
-        path: result/docs
-    - name: Deploy 🚀
-      uses: JamesIves/github-pages-deploy-action@4.1.4
-      with:
-        branch: gh-pages
-        folder: result/docs
+      - uses: actions/checkout@v3
+      - uses: DeterminateSystems/nix-installer-action@main
+      - uses: DeterminateSystems/magic-nix-cache-action@main
+      - name: Build the website (Nix) 🔧
+        run: nix build .#website
+      - name: Deploy to gh-pages 🚀
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./result/
+          cname: changemetrics.io
diff --git a/default.nix b/default.nix
deleted file mode 100644
index af47e74..0000000
--- a/default.nix
+++ /dev/null
@@ -1,35 +0,0 @@
-let
-  pkgs = (import (fetchTarball {
-    url =
-      "https://github.com/NixOS/nixpkgs/archive/6f3e97e3f8cca69ad2528c8459682900a9b34a2f.tar.gz";
-    sha256 = "1gb59awicr84p68nnqkdmd9mdsnpar28jbskanrd71vsp5nw7c2p";
-  })) { };
-  gitignore = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
-  drv = pkgs.haskellPackages.callCabal2nix "changemetrics-io" gitignore { };
-in {
-  drv = drv;
-  pages = pkgs.stdenv.mkDerivation {
-    name = "changemetrics.io-pages";
-    buildInputs = [ drv ];
-    src = drv.src;
-    # https://github.com/jaspervdj/hakyll/issues/614
-    # https://github.com/NixOS/nix/issues/318#issuecomment-52986702
-    # https://github.com/MaxDaten/brutal-recipes/blob/source/default.nix#L24
-    LOCALE_ARCHIVE =
-      pkgs.lib.optionalString (pkgs.buildPlatform.libc == "glibc")
-      "${pkgs.glibcLocales}/lib/locale/locale-archive";
-    LANG = "en_US.UTF-8";
-
-    buildPhase = ''
-      changemetrics-io build
-    '';
-    installPhase = ''
-      mkdir -p "$out/docs"
-      cp -r ./_site/* "$out/docs"
-    '';
-  };
-  shell = pkgs.haskellPackages.shellFor {
-    packages = p: [ drv ];
-    buildInputs = with pkgs.haskellPackages; [ cabal-install ];
-  };
-}
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..3a54715
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,60 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1701680307,
+        "narHash": "sha256-kAuep2h5ajznlPMD9rnQyffWG8EM/C73lejGofXvdM8=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "4022d587cbbfd70fe950c1e2083a02621806a725",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1704752602,
+        "narHash": "sha256-dXXXInXxfkfiuA5qOKHCky+woYSeg0KV+GBhU63bQzE=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "4770e67ec9d0d86389d339e8498f9e509f97fa86",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..e0e095b
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,48 @@
+{
+  description = "hakyll-website";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = inputs:
+    inputs.flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import inputs.nixpkgs { inherit system; };
+        # the name of the cabal package and command line
+        name = "changemetrics-io";
+
+        haskellExtend = hpFinal: hpPrev: {
+          ${name} =
+            hpPrev.callCabal2nix name inputs.self { };
+        };
+        hsPkgs = pkgs.haskellPackages.extend haskellExtend;
+
+        website = pkgs.stdenv.mkDerivation {
+          name = "${name}-pages";
+          buildInputs = [ hsPkgs.${name} ];
+          src = inputs.self;
+          # https://github.com/jaspervdj/hakyll/issues/614
+          # https://github.com/NixOS/nix/issues/318#issuecomment-52986702
+          # https://github.com/MaxDaten/brutal-recipes/blob/source/default.nix#L24
+          LOCALE_ARCHIVE =
+            pkgs.lib.optionalString (pkgs.buildPlatform.libc == "glibc")
+            "${pkgs.glibcLocales}/lib/locale/locale-archive";
+          LANG = "en_US.UTF-8";
+
+          buildPhase = ''
+            ${name} build
+          '';
+          installPhase = ''
+            mv _site $out
+          '';
+        };
+      in {
+        packages.website = website;
+        devShell = hsPkgs.shellFor {
+          packages = p: [ p.${name} ];
+          buildInputs = [ pkgs.cabal-install ];
+        };
+      });
+}
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
index af299aa..0000000
--- a/shell.nix
+++ /dev/null
@@ -1 +0,0 @@
-(import ./default.nix).shell