diff --git a/BioArchLinux/r-refmanager/lilac.py b/BioArchLinux/r-refmanager/lilac.py
new file mode 100644
index 0000000000..620556bc87
--- /dev/null
+++ b/BioArchLinux/r-refmanager/lilac.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+from lilaclib import *
+
+def pre_build():
+    for line in edit_file('PKGBUILD'):
+        if line.startswith('_pkgver='):
+            line = f'_pkgver={_G.newver}'
+        print(line)
+    update_pkgver_and_pkgrel(_G.newver.replace(':', '.').replace('-', '.'))
+
+def post_build():
+    git_pkgbuild_commit()