diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index cce3781..3f52417 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -106,7 +106,9 @@ jobs:
           # flashes a console window. main.go calls AttachConsole on
           # startup so CLI invocations from cmd/PowerShell still print
           # to the parent terminal.
-          go build -trimpath -ldflags="-s -w -H=windowsgui \
+          # -tags desktop,production is REQUIRED by Wails (see release.yml).
+          go build -trimpath -tags "desktop,production" \
+            -ldflags="-s -w -H=windowsgui \
             -X main.Version=dev-${SHORT_SHA} \
             -X main.Commit=${SHORT_SHA} \
             -X main.BuildDate=${BUILD_DATE}" \
diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index af574ce..0af23a1 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -78,7 +78,11 @@ jobs:
           # double-click experience doesn't flash a console window. main.go
           # calls AttachConsole on startup so CLI runs still print to the
           # parent terminal when launched from cmd/PowerShell.
-          go build -trimpath -ldflags="-s -w -H=windowsgui \
+          # -tags desktop,production is REQUIRED by Wails — otherwise the
+          # binary aborts at startup with a "Wails applications will not
+          # build without the correct build tags" MessageBox.
+          go build -trimpath -tags "desktop,production" \
+            -ldflags="-s -w -H=windowsgui \
             -X main.Version=${{ steps.version.outputs.version }} \
             -X main.Commit=${SHORT_SHA} \
             -X main.BuildDate=${BUILD_DATE}" \
diff --git a/rebuild.sh b/rebuild.sh
new file mode 100644
index 0000000..12452e4
--- /dev/null
+++ b/rebuild.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+set -e
+cd "$(dirname "$0")"
+echo "[$(date +%H:%M:%S)] frontend..."
+(cd internal/gui/frontend && npm run build 2>&1 | tail -3)
+echo "[$(date +%H:%M:%S)] go build..."
+CGO_ENABLED=0 go build -trimpath -tags "desktop,production" \
+  -ldflags "-s -w -H=windowsgui -X main.Version=99.99.99-test" \
+  -o drover-test.exe ./cmd/drover
+echo "[$(date +%H:%M:%S)] OK $(stat -c %s drover-test.exe) bytes"