弊ぼっちのruby-3.1チートはこちらです
$ grep rails-settings-cached Gemfile
gem 'rails-settings-cached', '~> 0.6', git: 'https://github.com/zunda/rails-settings-cached.git', branch: 'v0.6.6-aliases-true'
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GitHubGitHub - zunda/rails-settings-cached: Global settings for your Rails application.Global settings for your Rails application. Contribute to zunda/rails-settings-cached development by creating an account on GitHub.