diff --git a/moltenbar b/moltenbar
index 0c59369..887ae0b 100755
--- a/moltenbar
+++ b/moltenbar
@@ -61,12 +61,6 @@ class DoSystem < Worker
 	end
 end
 
-class ::String
-	def erb
-		return ERB.new(self).result
-	end
-end
-
 module Modules
 	@modules = {}
 
@@ -88,7 +82,7 @@ class Template
 		@config = config
 		@panel_data = data
 
-		return ERB.new(@template).result(binding)
+		return ERB.new(@template).result(binding())
 	end
 end
 
@@ -107,9 +101,19 @@ end
 
 require 'erb'
 require 'yaml'
+require 'optparse'
 
 workers = []
 panel_data = {}
+options = {}
+
+OptionParser.new do |opts|
+	opts.banner = "Usage: moltenvar [-c]"
+
+	opts.on("-cCONFIG", "--config=CONFIG") do |v|
+		options[:config_file] = v
+	end
+end.parse!
 
 if ENV["XDG_CONFIG_HOME"] == nil
 	conf_dir = ENV["HOME"] + "/.config/moltenbar"
@@ -117,15 +121,14 @@ else
 	conf_dir = ENV["XDG_CONFIG_HOME"] + "/moltenbar"
 end
 
-config_file = conf_dir + "/rc.yaml"
-mod_dir = conf_dir + "/mod"
+options[:config_file] ||= conf_dir + "/rc.yaml"
 
-puts config_file
+config = YAML.load_file(options[:config_file])
 
-config = YAML.load_file(config_file)
+config['mod_dir'] ||= conf_dir + "/mod"
 
 for m in config['modules'] do
-	load("#{mod_dir}/#{m}")
+	load("#{config['mod_dir']}/#{m}")
 end
 
 pipe_r, pipe_w = IO.pipe