diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 482c1f48..1f1dab5e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,6 +1,9 @@
 name: Build
 
 on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 8 * * 1,4" # midnight US/Pacific on Sundays and Wednesdays
   pull_request:
     branches:
       - main