diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a96bf6bd42..ecf2418fe9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -3,6 +3,9 @@ name: Main
 
 on:
   workflow_dispatch:
+  schedule:
+    # run this job at 23:00 UTC every other day
+    - cron:  '0 23 */2 * *'
   pull_request:
 
 permissions: {}
@@ -70,7 +73,7 @@ jobs:
           NDCTL_ENABLE: n # just to speed up the job
           PMEMOBJ_IGNORE_DIRTY_SHUTDOWN: y # not recommended for production
           PMEMOBJ_IGNORE_BAD_BLOCKS: y # not recommended for production
-        run: make -j$(nproc) cstyle
+        run: make cstyle
 
 
   basic_build:
diff --git a/README.md b/README.md
index 3aab55d330..219a3231ad 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,6 @@
 # **PMDK: Persistent Memory Development Kit**
 
+[![Main](https://github.com/pmem/pmdk/actions/workflows/main.yml/badge.svg)](https://github.com/pmem/pmdk/actions/workflows/main.yml)
 [![Nightly](https://github.com/pmem/pmdk/actions/workflows/nightly.yml/badge.svg?branch=master)](https://github.com/pmem/pmdk/actions/workflows/nightly.yml)
 [![Scans](https://github.com/pmem/pmdk/actions/workflows/scans.yml/badge.svg?branch=master)](https://github.com/pmem/pmdk/actions/workflows/scans.yml)
 [![Coverage](https://codecov.io/github/pmem/pmdk/coverage.svg?branch=master)](https://codecov.io/gh/pmem/pmdk/branch/master)