Ruby on Rails – local で RAILS_ENV=production でサーバーを起動してもつながらない場合 (コンソールにも何も表示されない) - Qiita

RAILS_LOG_TO_STDOUT=1 RAILS_ENV=production rails server => Booting Puma => Rails 7.0.4.2 application starting in production => Run `bin/rails server --help` for more startup options W, [2023-02-06T22:12:58.122114 #44354] WARN -- : You are running SQLite in production, this is generally not recommended. You can disable this warning by setting "config.active_record.sqlite3_production_warning=false".