diff --git a/BUILD.md b/BUILD.md
index e4d061f..09e0122 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -3,8 +3,7 @@ Image building
 
 ## Notes
 
-- Gentoo base?
-- CentOS/Rocky base?
+- package source: arch linux
 
 ## Process
 
@@ -18,4 +17,6 @@ Image building
 8. Export rootfs as btrfs snapshot
 9. Release snapshot as new DEVELOP version
 10. Run testsuite
-11. Once a week: Release snapshot as RELEASE version
+11. Once every month: If no issues with DEVELOP version, publish as RELEASE version
+
+_Security fixes get released asap_