not all versions of Ruby have Ractor.main?

Author: tenderlove

lib/sqlite3/database.rb

@@ -181,7 +181,7 @@ def initialize file, options = {}, zvfs = nil
 
       initialize_extensions(options[:extensions])
 
-      ForkSafety.track(self) if Ractor.main?
+      ForkSafety.track(self) if Ractor.main == Ractor.current
 
       if block_given?
         begin