Add example of ZeroMQ

bin/pkg

@@ -1,3 +1,50 @@
 #!/usr/bin/env ruby
 
+# Simple Ruby package manager mock
+# Supports:
+#   pkg --user install nvim
+#   pkg --system install nvim
+#   pkg install nvim        # defaults to --package
+#   pkg --package install nvim
+
+require "package"
+
 puts "Welcome to package manager"
+
+# Extract options and commands from arguments
+args = ARGV.dup
+
+scope = :package # default
+if args.first&.start_with?("--")
+  case args.shift
+  when "--user"
+    scope = :user
+  when "--system"
+    scope = :system
+  when "--package"
+    scope = :package
+  else
+    puts "Unknown option: #{args.first}"
+    exit 1
+  end
+end
+
+command = args.shift
+package = args.shift
+
+if command.nil?
+  puts "Usage: pkg [--user|--system|--package] <install|make> <package>"
+  exit 1
+end
+
+case command
+when "install"
+  Package.install(package, scope)
+when "make"
+  Package.make(package, scope)
+when "daemon"
+  Package.daemon
+else
+  puts "Unknown command: #{command}"
+  exit 1
+end