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Gemfile

@@ -2,15 +2,25 @@
 
 source "https://rubygems.org"
 
+# Development
 group :development do
   gem "irb"
   gem "dotenv"
 end
 
+# Base
 gem "roda"
 gem "rackup"
 gem "puma"
 gem "tilt"
 gem "erubi"
+
+# Mail
 gem "mail"
+
+# Markdown
 gem "commonmarker"
+
+# Database
+gem "sequel"
+gem "sqlite3"