add gemfiles

gemfiles/rails_7.1.gemfile

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+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "minitest-rails", "~> 7.1.0"
+gem "railties", "~> 7.1.0"
+gem "bigdecimal", require: false
+gem "drb", require: false
+
+group :active_record do
+  gem "pg"
+  gem "sqlite3"
+end
+
+group :mongoid do
+  gem "mongoid", "~> 8.0"
+
+  group :test do
+    gem "database_cleaner-mongoid", "~> 2.0"
+  end
+end
+
+group :test do
+  gem "rails-controller-testing"
+end
+
+gemspec path: "../"

gemfiles/rails_7.2.gemfile

@@ -0,0 +1,27 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "minitest-rails", "~> 7.1.0"
+gem "railties", "~> 7.2.0"
+gem "bigdecimal", require: false
+gem "drb", require: false
+
+group :active_record do
+  gem "pg"
+  gem "sqlite3"
+end
+
+group :mongoid do
+  gem "mongoid", "~> 8.0"
+
+  group :test do
+    gem "database_cleaner-mongoid", "~> 2.0"
+  end
+end
+
+group :test do
+  gem "rails-controller-testing"
+end
+
+gemspec path: "../"