diff --git a/.gitea/workflows/release-tool.yml b/.gitea/workflows/release-tool.yml
index 51bf956..69c9fd3 100644
--- a/.gitea/workflows/release-tool.yml
+++ b/.gitea/workflows/release-tool.yml
@@ -23,14 +23,16 @@ jobs:
           git reset --hard "${TAG_NAME}"
           git clean -fd
 
-      - name: Build sow-toolkit
+      - name: Build sow-toolkit binaries
         run: |
           set -euo pipefail
           CHECKOUT_PATH="${CHECKOUT_PATH:-/home/ubuntu/tools-checkout}"
           cd "${CHECKOUT_PATH}"
-          ./build-tool.sh
+          mkdir -p tools .cache/go-build
+          GOCACHE="${PWD}/.cache/go-build" go build -o ./tools/sow-toolkit ./cmd/nwn-tool
+          GOOS=windows GOARCH=amd64 GOCACHE="${PWD}/.cache/go-build" go build -o ./tools/sow-toolkit.exe ./cmd/nwn-tool
 
-      - name: Pack release bundle
+      - name: Pack release bundles
         id: pack
         env:
           TAG_NAME: ${{ github.ref_name }}
@@ -38,24 +40,35 @@ jobs:
           set -euo pipefail
           CHECKOUT_PATH="${CHECKOUT_PATH:-/home/ubuntu/tools-checkout}"
           cd "${CHECKOUT_PATH}"
-          binary="tools/sow-toolkit"
-          if [[ ! -x "${binary}" ]]; then
-            echo "Missing built tool: ${binary}"
+          linux_binary="tools/sow-toolkit"
+          windows_binary="tools/sow-toolkit.exe"
+          if [[ ! -x "${linux_binary}" ]]; then
+            echo "Missing built tool: ${linux_binary}"
             exit 1
           fi
-          archive="/tmp/sow-toolkit-linux-amd64-${TAG_NAME}.tar.gz"
-          tar -czf "${archive}" -C tools sow-toolkit
-          echo "archive=${archive}" >> "$GITHUB_OUTPUT"
-          echo "asset_name=sow-toolkit-linux-amd64.tar.gz" >> "$GITHUB_OUTPUT"
+          if [[ ! -f "${windows_binary}" ]]; then
+            echo "Missing built tool: ${windows_binary}"
+            exit 1
+          fi
+          linux_archive="/tmp/sow-toolkit-linux-amd64-${TAG_NAME}.tar.gz"
+          windows_archive="/tmp/sow-toolkit-windows-amd64-${TAG_NAME}.zip"
+          tar -czf "${linux_archive}" -C tools sow-toolkit
+          zip -j "${windows_archive}" "${windows_binary}"
+          echo "linux_archive=${linux_archive}" >> "$GITHUB_OUTPUT"
+          echo "linux_asset_name=sow-toolkit-linux-amd64.tar.gz" >> "$GITHUB_OUTPUT"
+          echo "windows_archive=${windows_archive}" >> "$GITHUB_OUTPUT"
+          echo "windows_asset_name=sow-toolkit-windows-amd64.zip" >> "$GITHUB_OUTPUT"
           echo "tag=${TAG_NAME}" >> "$GITHUB_OUTPUT"
 
-      - name: Create release and upload artifact
+      - name: Create release and upload artifacts
         env:
           GITEA_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GITEA_SERVER_URL: ${{ github.server_url }}
           GITEA_REPO: ${{ github.repository }}
-          ARCHIVE: ${{ steps.pack.outputs.archive }}
-          ASSET_NAME: ${{ steps.pack.outputs.asset_name }}
+          LINUX_ARCHIVE: ${{ steps.pack.outputs.linux_archive }}
+          LINUX_ASSET_NAME: ${{ steps.pack.outputs.linux_asset_name }}
+          WINDOWS_ARCHIVE: ${{ steps.pack.outputs.windows_archive }}
+          WINDOWS_ASSET_NAME: ${{ steps.pack.outputs.windows_asset_name }}
           TAG_NAME: ${{ steps.pack.outputs.tag }}
         run: |
           set -euo pipefail
@@ -85,22 +98,31 @@ jobs:
             RELEASE_ID=$(jq -r '.id' "${RESP_FILE}")
           fi
 
-          ASSET_ID=$(jq -r --arg name "${ASSET_NAME}" '.assets[]? | select(.name == $name) | .id' "${RESP_FILE}" | head -n1)
-          if [[ -n "${ASSET_ID}" ]]; then
-            curl -sS -f "${AUTH[@]}" -X DELETE \
-              "${API}/repos/${OWNER}/${NAME}/releases/${RELEASE_ID}/assets/${ASSET_ID}"
-          fi
+          for name in "${LINUX_ASSET_NAME}" "${WINDOWS_ASSET_NAME}"; do
+            ASSET_ID=$(jq -r --arg name "${name}" '.assets[]? | select(.name == $name) | .id' "${RESP_FILE}" | head -n1)
+            if [[ -n "${ASSET_ID}" ]]; then
+              curl -sS -f "${AUTH[@]}" -X DELETE \
+                "${API}/repos/${OWNER}/${NAME}/releases/${RELEASE_ID}/assets/${ASSET_ID}"
+            fi
+          done
 
           curl -sS -f "${AUTH[@]}" -X POST \
-            -F "attachment=@${ARCHIVE}" \
-            "${API}/repos/${OWNER}/${NAME}/releases/${RELEASE_ID}/assets?name=${ASSET_NAME}"
+            -F "attachment=@${LINUX_ARCHIVE}" \
+            "${API}/repos/${OWNER}/${NAME}/releases/${RELEASE_ID}/assets?name=${LINUX_ASSET_NAME}"
+
+          curl -sS -f "${AUTH[@]}" -X POST \
+            -F "attachment=@${WINDOWS_ARCHIVE}" \
+            "${API}/repos/${OWNER}/${NAME}/releases/${RELEASE_ID}/assets?name=${WINDOWS_ASSET_NAME}"
 
       - name: Cleanup temporary files
         if: always()
         env:
           TAG_NAME: ${{ github.ref_name }}
         run: |
-          rm -f "/tmp/sow-toolkit-linux-amd64-${TAG_NAME}.tar.gz" /tmp/gitea-release.json
+          rm -f \
+            "/tmp/sow-toolkit-linux-amd64-${TAG_NAME}.tar.gz" \
+            "/tmp/sow-toolkit-windows-amd64-${TAG_NAME}.zip" \
+            /tmp/gitea-release.json
 
       - name: Prune old releases (keep latest 1)
         env:
diff --git a/.gitignore b/.gitignore
index 58fa116..86ee85c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 
 # Built tool output
 /tools/sow-toolkit
+/tools/sow-toolkit.exe
 
 # OS/editor noise
 .DS_Store
diff --git a/README.md b/README.md
index eeba58e..70e9423 100644
--- a/README.md
+++ b/README.md
@@ -41,4 +41,12 @@ During development, sibling repositories can point at `../sow-tools/tools/sow-to
 
 ## Release Automation
 
-This repo publishes a Linux `sow-toolkit` release artifact through Gitea Actions as `sow-toolkit-linux-amd64.tar.gz`. Consumer repos can fetch that binary into their local `tools/` directory with their `install-tool.sh` helper.
+This repo publishes:
+
+- `sow-toolkit-linux-amd64.tar.gz`
+- `sow-toolkit-windows-amd64.zip`
+
+Consumer repos can fetch those binaries into their local `tools/` directory with:
+
+- `install-tool.sh` on Linux/macOS
+- `install-tool.ps1` on Windows