wixl currently doesn't support <Environment> so I'm swapping out

to a file next-door to the configuration file, we should be
able to reuse this for deb/rpm as well

core/metrics/insights.go

@@ -155,7 +155,11 @@ var staticData = sync.OnceValue(func() insights.Data {
 	data.OS.Containerized = consts.InContainer
 
 	// Install info
-	data.OS.Package = os.Getenv("ND_PACKAGE_TYPE")
+	packageFilename := filepath.Join(filepath.Dir(conf.Server.ConfigFile), "package")
+	packageFileData, err := os.ReadFile(packageFilename)
+	if err == nil {
+		data.OS.Package = string(packageFileData)
+	}
 
 	// OS info
 	data.OS.Type = runtime.GOOS

release/wix/build_msi.sh

@@ -49,6 +49,9 @@ cp "${DOWNLOAD_FOLDER}"/extracted_ffmpeg/${FFMPEG_FILE}/bin/ffmpeg.exe "$MSI_OUT
 cp "$WORKSPACE"/LICENSE "$WORKSPACE"/README.md "$MSI_OUTPUT_DIR"
 cp "$BINARY" "$MSI_OUTPUT_DIR"
 
+# package type indicator file
+echo "msi" > "$MSI_OUTPUT_DIR/package"
+
 # workaround for wixl WixVariable not working to override bmp locations
 cp "$WORKSPACE"/release/wix/bmp/banner.bmp /usr/share/wixl-*/ext/ui/bitmaps/bannrbmp.bmp
 cp "$WORKSPACE"/release/wix/bmp/dialogue.bmp /usr/share/wixl-*/ext/ui/bitmaps/dlgbmp.bmp

release/wix/navidrome.wxs

@@ -61,7 +61,6 @@
 							Arguments='service execute --configfile "[INSTALLDIR]navidrome.ini" --logfile "[ND_DATAFOLDER]\navidrome.log"'
 						/>
 						<ServiceControl Id='StartNavidromeService' Start='install' Stop='both' Remove='uninstall' Name='$(var.ProductName)' Wait='yes' />
-						<Environment Action='create' Name='ND_PACKAGE_TYPE' Value='MSI' />
 					</Component>
 
 					<Component Id='FFMpegExecutable' Guid='d17358f7-abdc-4080-acd3-6427903a7dd8' Win64="$(var.Win64)">