diff --git a/.github/workflows/automerge.yml b/.github/workflows/automerge.yml
new file mode 100644
index 0000000..34bcf0e
--- /dev/null
+++ b/.github/workflows/automerge.yml
@@ -0,0 +1,20 @@
+name: Auto-merge dev→main
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [main]
+
+jobs:
+  enable-auto-merge:
+    runs-on: ubuntu-latest
+    if: github.head_ref == 'dev'
+    permissions:
+      pull-requests: write
+      contents: write
+    steps:
+      - name: Enable auto-merge
+        run: gh pr merge --auto --merge "${{ github.event.pull_request.number }}"
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GH_REPO: ${{ github.repository }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9a904aa..24d3518 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,9 +2,9 @@ name: Go
 
 on:
   push:
-    branches: [ "main"]
+    branches: [ "main", "dev" ]
   pull_request:
-    branches: [ "main"]
+    branches: [ "main" ]
 
 jobs:
   test:
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..6b5c166
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+ROADMAP.md
diff --git a/appconfig.go b/appconfig.go
index 6f98627..2c9c70a 100644
--- a/appconfig.go
+++ b/appconfig.go
@@ -12,6 +12,7 @@ import (
 // AppName identifies a supported application for WriteAppConfig.
 type AppName string
 
+// Supported application names for WriteAppConfig and ClearAppConfig.
 const (
 	AppCurl AppName = "curl" // ~/.curlrc
 	AppGit  AppName = "git"  // git config --global