Comment on Gemfile

Author: TonyCTHsu

Gemfile

@@ -1 +1,11 @@
+# The correct gemfile is loaded based on current Ruby version and engine and generating
+# `Gemfile.lock` at the root of the project.
+#
+# NOTE:
+# After changing Ruby version, `Gemfile.lock` can become stale.
+# Rgenerate `Gemfile.lock` by running `rm Gemfile.lock && bundle lock`.
+#
+# If you are not familiar with handling multiple Ruby versions. It is recommended
+# to used `docker compose` for development, which already handles the Ruby version for you.
+
 eval_gemfile("#{RUBY_ENGINE}-#{RUBY_ENGINE_VERSION.split('.').take(2).join('.')}.gemfile")