diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index c3f9e5f..e643ad1 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -9,7 +9,7 @@ on:
 
 jobs:
 
-  build:
+  unix:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
@@ -24,3 +24,35 @@ jobs:
 
     - name: Test
       run: go test -v ./...
+
+  macos:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.18
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v -short ./...
+
+  windows:
+    runs-on: windows-latest
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Set up Go
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.18
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Test
+      run: go test -v -short ./...
\ No newline at end of file
diff --git a/file.go b/file.go
index 2adb9b9..d50a65b 100644
--- a/file.go
+++ b/file.go
@@ -226,6 +226,7 @@ func removeClasses(pattern string) string {
 	}
 }
 
+// Find a character class in the pattern.
 func findClass(pattern string) (start, end int) {
 	start = -1
 	escape := false
diff --git a/internal/zenutil/osa_generated.go b/internal/zenutil/osa_generated.go
index ddb84f9..c005d19 100644
--- a/internal/zenutil/osa_generated.go
+++ b/internal/zenutil/osa_generated.go
@@ -40,9 +40,9 @@ app.activate()
 ObjC.import('Cocoa')
 ObjC.import('stdio')
 ObjC.import('stdlib')
-{{template "common" .}}
 var nsapp=$.NSApplication.sharedApplication
 nsapp.setActivationPolicy($.NSApplicationActivationPolicyAccessory)
+{{template "common" .}}
 var date=$.NSDatePicker.alloc.init
 date.setDatePickerStyle($.NSDatePickerStyleClockAndCalendar)
 date.setDatePickerElements($.NSDatePickerElementFlagYearMonthDay)