diff --git a/.github/workflows/update-development-manual.yml b/.github/workflows/update-development-manual.yml
new file mode 100644
index 000000000..d40c722a9
--- /dev/null
+++ b/.github/workflows/update-development-manual.yml
@@ -0,0 +1,25 @@
+name: "Update development manual"
+on:
+  repository_dispatch:
+  workflow_dispatch:
+  schedule:
+    # Run weekly on Mondays at 3:31 AM UTC
+    - cron: "31 3 * * 1"
+
+jobs:
+  update-development-manual:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write # Required to create releases and push changes
+    steps:
+      - uses: actions/checkout@v4
+      - uses: cachix/install-nix-action@v31
+      - name: Update development manual
+        run: nix-shell --run update-development-manual
+        env:
+          GH_TOKEN: ${{ github.token }}
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v7
+        with:
+          title: Update development manual
+          labels: dependencies
\ No newline at end of file
diff --git a/default.nix b/default.nix
index e6b556457..326e3dd59 100644
--- a/default.nix
+++ b/default.nix
@@ -11,6 +11,13 @@
 let
   lib = pkgs.lib;
   releases = import ./nix/releases.nix { inherit lib inputs system; };
+
+  # Fetch the development manual from GitHub releases
+  developmentManualInfo = lib.importJSON ./nix/development-manual.json;
+  developmentManual = pkgs.fetchurl {
+    url = developmentManualInfo.url;
+    sha256 = developmentManualInfo.sha256;
+  };
   pkgs-unstable = import inputs.main.nixpkgs-rolling {
     config = { };
     overlays = [ ];
@@ -83,6 +90,11 @@ let
         '' + lib.optionalString withManuals ''
           ${lib.concatStringsSep "\n" (lib.mapAttrsToList release releases.nixReleases)}
           ${lib.concatStringsSep "\n" (lib.mapAttrsToList mutableRedirect releases.mutableNixManualRedirects)}
+
+          # Extract and install development manual
+          echo "Installing development manual..."
+          mkdir -p $out/manual/nix/development
+          tar -xf ${developmentManual} -C $out/manual/nix/development --strip-components=1
         '';
     };
 
@@ -92,6 +104,7 @@ let
   };
   update-nix-releases = pkgs-unstable.callPackage ./nix/update-nix-releases.nix { };
   update-nixpkgs-releases = pkgs-unstable.callPackage ./nix/update-nixpkgs-releases.nix { };
+  update-development-manual = pkgs-unstable.callPackage ./nix/update-development-manual.nix { };
 in
 {
   # build with `nix-build -A build`
@@ -103,6 +116,7 @@ in
       devmode
       update-nix-releases
       update-nixpkgs-releases
+      update-development-manual
       pkgs.npins
       pkgs.python3.pkgs.black
       pkgs.vale
diff --git a/netlify.toml b/netlify.toml
index d98a98198..e69de29bb 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -1,15 +0,0 @@
-[[redirects]]
-from = "/manual/nix/unstable/*"
-to = "https://hydra.nixos.org/job/nix/master/manual/latest/download/1/manual/:splat"
-status = 200
-force = true
-[redirects.headers]
-X-From = "nix.dev-Uogho3gi"
-
-[[redirects]]
-from = "/manual/nix/development/*"
-to = "https://hydra.nixos.org/job/nix/master/manual/latest/download/1/manual/:splat"
-status = 200
-force = true
-[redirects.headers]
-X-From = "nix.dev-Uogho3gi"
diff --git a/nix/development-manual.json b/nix/development-manual.json
new file mode 100644
index 000000000..fd7f51757
--- /dev/null
+++ b/nix/development-manual.json
@@ -0,0 +1,6 @@
+{
+  "version": "2025.01.06",
+  "sha256": "0000000000000000000000000000000000000000000000000000000000000000",
+  "url": "https://github.com/NixOS/nix.dev/releases/download/development-manual-2025.01.06/manual.tar.xz",
+  "updated": "2025-01-06 00:00:00 UTC"
+}
\ No newline at end of file
diff --git a/nix/update-development-manual.nix b/nix/update-development-manual.nix
new file mode 100644
index 000000000..8bc6602f9
--- /dev/null
+++ b/nix/update-development-manual.nix
@@ -0,0 +1,115 @@
+{
+  writeShellApplication,
+  curl,
+  jq,
+  gh,
+  coreutils,
+  gnused,
+  gnutar,
+  gzip,
+  git,
+}:
+# Update mechanism for development manual from Hydra, mirrored to GitHub releases
+writeShellApplication {
+  name = "update-development-manual";
+  runtimeInputs = [
+    curl
+    jq
+    gh
+    coreutils
+    gnused
+    gnutar
+    gzip
+    git
+  ];
+  text = ''
+        set -euo pipefail
+
+        echo >&2 "Downloading development manual from Hydra..."
+
+        # Try multiple fallback URLs in case Hydra structure changes
+        urls=(
+          "https://hydra.nixos.org/job/nix/master/manual/latest/download/1/manual.tar.xz"
+          "https://hydra.nixos.org/job/nix/master/build.x86_64-linux/latest/download/2/nix-*-x86_64-linux/share/doc/nix/manual"
+        )
+
+        tmp=$(mktemp -d)
+        trap 'rm -rf "$tmp"' EXIT
+
+        downloaded=false
+        for url in "''${urls[@]}"; do
+          echo >&2 "Trying to download from: $url"
+          if curl -f -L -s "$url" -o "$tmp/manual.tar.xz"; then
+            echo >&2 "Successfully downloaded from: $url"
+            downloaded=true
+            break
+          fi
+        done
+
+        if [ "$downloaded" = false ]; then
+          echo >&2 "Failed to download manual from any URL"
+          exit 1
+        fi
+
+        # Verify we got a valid archive
+        if ! tar -tf "$tmp/manual.tar.xz" > /dev/null 2>&1; then
+          echo >&2 "Downloaded file is not a valid tar archive"
+          exit 1
+        fi
+
+        # Calculate hash for comparison
+        current_hash=$(sha256sum "$tmp/manual.tar.xz" | cut -d' ' -f1)
+
+        # Check existing version file
+        if [ -f "nix/development-manual.json" ]; then
+          existing_hash=$(jq -r '.sha256' nix/development-manual.json)
+          if [ "$existing_hash" = "$current_hash" ]; then
+            echo >&2 "Manual with same content already exists"
+            exit 0
+          fi
+        fi
+
+        # Use date-based versioning for stability
+        # Format: YYYY.MM.DD (with optional .N for multiple updates same day)
+        base_version=$(date +%Y.%m.%d)
+
+        # Check if this version already exists and increment if needed
+        version="$base_version"
+        counter=1
+        while gh release view "development-manual-$version" >/dev/null 2>&1; do
+          version="$base_version.$counter"
+          counter=$((counter + 1))
+        done
+
+        echo >&2 "Creating new version: $version"
+
+        current_time=$(date -u +"%Y-%m-%d %H:%M:%S UTC")
+
+        # Create new versioned release
+        release_tag="development-manual-$version"
+        gh release create "$release_tag" "$tmp/manual.tar.xz" \
+          --title "Development Manual $version" \
+          --notes "Nix development manual from master branch ($current_time)
+
+    Hash: $current_hash" \
+          --prerelease
+
+        # Update the version file in the repository
+        jq -n \
+          --arg version "$version" \
+          --arg sha256 "$current_hash" \
+          --arg url "https://github.com/NixOS/nix.dev/releases/download/$release_tag/manual.tar.xz" \
+          --arg updated "$current_time" \
+          '{
+            version: $version,
+            sha256: $sha256,
+            url: $url,
+            updated: $updated
+          }' > nix/development-manual.json
+
+        echo >&2 "Development manual updated successfully!"
+        echo >&2 "Version: $version"
+        echo >&2 "Hash: $current_hash"
+        echo >&2 "Updated: nix/development-manual.json"
+  '';
+}