diff --git a/.github/workflows/rebuild-alpha16.7.yml b/.github/workflows/rebuild-alpha16.7.yml
new file mode 100644
index 0000000..e70cce7
--- /dev/null
+++ b/.github/workflows/rebuild-alpha16.7.yml
@@ -0,0 +1,122 @@
+name: Rebuild Alpha 16.7 source
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened]
+
+permissions:
+  contents: write
+
+jobs:
+  rebuild:
+    if: github.head_ref == 'release/v2.1.0.0-alpha16.7'
+    runs-on: ubuntu-latest
+    env:
+      GH_TOKEN: ${{ github.token }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: release/v2.1.0.0-alpha16.7
+          fetch-depth: 0
+
+      - name: Recover and verify Alpha 16.7
+        shell: bash
+        run: |
+          set -euo pipefail
+          recovered=/tmp/cco-recovered
+          source=/tmp/cco-source
+          rm -rf "$recovered" "$source"
+          mkdir -p "$recovered" "$source/gui" "$source/l10n" "$source/scripts/gui" "$source/modSettings/FS25_CropControlOverride"
+          cp icon_CropControlOverride.dds "$source/icon_CropControlOverride.dds"
+
+          fetch_blob() {
+            local sha="$1" out="$2"
+            curl --fail --silent --show-error \
+              -H "Authorization: Bearer $GH_TOKEN" \
+              -H "Accept: application/vnd.github+json" \
+              -H "X-GitHub-Api-Version: 2022-11-28" \
+              "https://api.github.com/repos/$GITHUB_REPOSITORY/git/blobs/$sha" \
+              | jq -r '.content' | tr -d '\r\n' | base64 --decode > "$out"
+            test "$(git hash-object "$out")" = "$sha"
+          }
+
+          blobs=(
+            c4f41ea219ea2bf1465119f3647c5415ac65a0a4
+            17967bc6b3543bd0bc8c5a2e66d5e015feff4a1b
+            8236f825bc47a0d4b465ea3f34d11430565864fb
+            f4da1416db70ba51b91c4443d0895d58e0535aa4
+            3d68b7e4a4578eaeccc396a6cf0e7f18794d137f
+            c6c217a4dee2c05aabd0b8172015252f5bb0d32d
+            276cda3e2e31fc73c7263b1cec0cdf8c5ee7ed8e
+            6615d70c68a8e5a92c520e5474e0585b38a2d25a
+            1265d627f383e0b64e9602212d189d765588d3e8
+            6df7ce36da5abeb1198831002fc6bf097f782c82
+            1bcee703a689d1eb1ddca9e2c3f512560b1ee433
+            381c02191f3d46f3d94c6b8726a0d8aa98d5cc6c
+            e02e5f6cfef13cd01019d6d89065cc8dc10000f2
+            296ef6192062746d84ae55e7f8b12a67d0dd16b4
+            486aa59d0eb54cf6e1c4d1f0fdcebbf599b82bd1
+            9fb9415111c7d5c22121a650f922afa7673fe30b
+            65cdb24a6677026a5c398f2bbc927f3fdab8e4a4
+            a96f299e8677fdd4184b463ad970d472947920ff
+            2e202c445614817fd2dd6724266025f3dbcd5b60
+            db3d550fca76e728c1d6492e6778afbe43060a5f
+          )
+
+          classify() {
+            local file="$1" dest=""
+            if grep -aq '<modDesc' "$file"; then dest=modDesc.xml
+            elif grep -aq '<GUIProfiles' "$file"; then dest=gui/guiProfiles.xml
+            elif grep -aq '<GUI' "$file" && grep -aq 'CropControlOverrideMenu' "$file"; then dest=gui/CropControlOverrideMenu.xml
+            elif grep -aq '<l10n' "$file"; then
+              if grep -Eaq 'Kalender|Aussaat|Ernte' "$file"; then dest=l10n/l10n_de.xml
+              elif grep -Eaq 'Calendrier|Semis|Récolte|Recolte' "$file"; then dest=l10n/l10n_fr.xml
+              else dest=l10n/l10n_en.xml; fi
+            elif grep -aq 'reseedWeight' "$file" && grep -Eaq '<cropControlOverride|<cropControl|<config' "$file"; then dest=modSettings/FS25_CropControlOverride/config.xml
+            elif grep -Eaq '^CropCalendarManager[[:space:]]*=' "$file"; then dest=scripts/CropCalendarManager.lua
+            elif grep -Eaq '^CropControlOverrideChangeSettingsEvent[[:space:]]*=' "$file"; then dest=scripts/CropControlOverrideChangeSettingsEvent.lua
+            elif grep -Eaq '^CropControlOverrideMenu[[:space:]]*=' "$file"; then dest=scripts/gui/CropControlOverrideMenu.lua
+            elif grep -aq 'lightweight debug/log helpers' "$file" || grep -Eaq '^CCO_Debug[[:space:]]*=' "$file"; then dest=scripts/Debug.lua
+            elif grep -Eaq '^CropControlOverride[[:space:]]*=' "$file"; then dest=scripts/CropControlOverride.lua
+            fi
+            if [ -n "$dest" ]; then mkdir -p "$source/$(dirname "$dest")"; cp "$file" "$source/$dest"; echo "$dest"; fi
+          }
+
+          for sha in "${blobs[@]}"; do
+            file="$recovered/$sha"
+            fetch_blob "$sha" "$file"
+            classify "$file"
+          done
+
+          fetch_blob 87de8c1b6835edaa7911bd7bd13a53948c6f4d21 "$source/README.md"
+          fetch_blob 4ba370b8b72fe409ec719d03fe353d8f5e3fc8f4 "$source/RELEASE_NOTES_ALPHA16.7.md"
+
+          required=(
+            modDesc.xml icon_CropControlOverride.dds
+            gui/CropControlOverrideMenu.xml gui/guiProfiles.xml
+            l10n/l10n_en.xml l10n/l10n_de.xml l10n/l10n_fr.xml
+            scripts/Debug.lua scripts/CropControlOverride.lua
+            scripts/CropControlOverrideChangeSettingsEvent.lua
+            scripts/CropCalendarManager.lua scripts/gui/CropControlOverrideMenu.lua
+            modSettings/FS25_CropControlOverride/config.xml
+            README.md RELEASE_NOTES_ALPHA16.7.md
+          )
+          for path in "${required[@]}"; do test -s "$source/$path" || { echo "Missing $path" >&2; exit 1; }; done
+
+          grep -q '<version>2.1.0.0</version>' "$source/modDesc.xml"
+          grep -q '<author>SimGamerJen</author>' "$source/modDesc.xml"
+          grep -q 'Contributor acknowledgement: Hyper138' "$source/modDesc.xml"
+          grep -q 'VERSION = "2.1.0.0-alpha.16.7"' "$source/scripts/CropControlOverride.lua"
+          grep -q 'cco_calendar_legend_planting' "$source/l10n/l10n_en.xml"
+
+          rm -rf gui l10n scripts modSettings
+          rm -f modDesc.xml icon_CropControlOverride.dds README.md RELEASE_NOTES_ALPHA16.7.md
+          cp -a "$source"/* .
+          rm -rf .github .release
+
+          git config user.name 'github-actions[bot]'
+          git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
+          git add -A
+          git commit -m 'Rebuild Alpha 16.7 source from verified objects'
+          git push origin HEAD:release/v2.1.0.0-alpha16.7