It works! Next step: some plugins.

plugins/mikrofalowka.rb

@@ -0,0 +1,7 @@
+include EventMachine::IRC::Commands
+
+repost.register_trigger("PRIVMSG") { |msg|
+    nick = msg[:prefix].split('!').first
+    destination = msg[:params][0]
+    repost.privmsg(destination, "#{nick}: napraw mikrofalowke") if nick.match /[Bb].[Rr][Tt]/
+}

run.rb

@@ -3,8 +3,8 @@
 require 'rubygems'
 require 'eventmachine'
 require 'em-irc'
-require './config'
-require './repost'
+require_relative 'config'
+require_relative 'repost'
 
 repost = Repost.new do
 
@@ -29,6 +29,9 @@ repost = Repost.new do
 
 end
 
-#repost.register_trigger("PRIVMSG") { |msg| p msg }
+Config[:plugins].each do |plugin|
+    puts "Loading plugin #{plugin}"
+    eval File.read(File.dirname($0) + "/plugins/#{plugin}.rb")
+end if not Config[:plugins].nil?
 
 repost.run!