diff --git a/.gitignore b/.gitignore
index 61418b1..78e6db4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,7 +20,8 @@ tmp
 *.o
 *.a
 mkmf.log
-.vendor 
+.vendor
+.ruby-version
 # Xcode
 #
 *.pbxuser
diff --git a/lib/cocoapods_plugin.rb b/lib/cocoapods_plugin.rb
index 480de31..95ab9d4 100644
--- a/lib/cocoapods_plugin.rb
+++ b/lib/cocoapods_plugin.rb
@@ -1,4 +1,4 @@
-require 'slather'
+require_relative 'slather'
 
 Pod::HooksManager.register('slather', :post_install) do |installer_context|
   sandbox_root = installer_context.sandbox_root
diff --git a/lib/slather.rb b/lib/slather.rb
index cc47a2d..ca8d21a 100644
--- a/lib/slather.rb
+++ b/lib/slather.rb
@@ -1,18 +1,18 @@
-require 'slather/version'
-require 'slather/project'
-require 'slather/coverage_info'
-require 'slather/coverage_file'
-require 'slather/coveralls_coverage'
-require 'slather/profdata_coverage_file'
-require 'slather/coverage_service/cobertura_xml_output'
-require 'slather/coverage_service/coveralls'
-require 'slather/coverage_service/hardcover'
-require 'slather/coverage_service/gutter_json_output'
-require 'slather/coverage_service/simple_output'
-require 'slather/coverage_service/html_output'
-require 'slather/coverage_service/json_output'
-require 'slather/coverage_service/llvm_cov_output'
-require 'slather/coverage_service/sonarqube_xml_output'
+require_relative 'slather/version'
+require_relative 'slather/project'
+require_relative 'slather/coverage_info'
+require_relative 'slather/coverage_file'
+require_relative 'slather/coveralls_coverage'
+require_relative 'slather/profdata_coverage_file'
+require_relative 'slather/coverage_service/cobertura_xml_output'
+require_relative 'slather/coverage_service/coveralls'
+require_relative 'slather/coverage_service/hardcover'
+require_relative 'slather/coverage_service/gutter_json_output'
+require_relative 'slather/coverage_service/simple_output'
+require_relative 'slather/coverage_service/html_output'
+require_relative 'slather/coverage_service/json_output'
+require_relative 'slather/coverage_service/llvm_cov_output'
+require_relative 'slather/coverage_service/sonarqube_xml_output'
 require 'cfpropertylist'
 
 module Slather
diff --git a/lib/slather/command/coverage_command.rb b/lib/slather/command/coverage_command.rb
index 794a219..fc3742f 100644
--- a/lib/slather/command/coverage_command.rb
+++ b/lib/slather/command/coverage_command.rb
@@ -36,10 +36,12 @@ class CoverageCommand < Clamp::Command
   option ["--arch"], "ARCH", "Architecture to use from universal binaries"
   option ["--source-files"], "SOURCE_FILES", "A Dir.glob compatible pattern used to limit the lookup to specific source files. Ignored in gcov mode.", :multivalued => true
   option ["--decimals"], "DECIMALS", "The amount of decimals to use for % coverage reporting"
+  option ["--ymlfile"], "YMLFILE", "Relative path to a file used in place of '.slather.yml'"
 
   def execute
     puts "Slathering..."
 
+    setup_ymlfile # MUST be the first setup
     setup_service_name
     setup_ignore_list
     setup_build_directory
@@ -64,6 +66,10 @@ def execute
     puts "Slathered"
   end
 
+  def setup_ymlfile
+    Slather::Project.yml_filename = ymlfile if ymlfile
+  end
+
   def setup_build_directory
     project.build_directory = build_directory if build_directory
   end
diff --git a/lib/slather/command/setup_command.rb b/lib/slather/command/setup_command.rb
index d0397ec..3f5ab13 100644
--- a/lib/slather/command/setup_command.rb
+++ b/lib/slather/command/setup_command.rb
@@ -2,8 +2,10 @@ class SetupCommand < Clamp::Command
   parameter "[PROJECT]", "Path to the .xcodeproj", :attribute_name => :xcodeproj_path
 
   option ["--format"], "FORMAT", "Type of coverage to use (gcov, clang, auto)"
+  option ["--ymlfile"], "YMLFILE", "Relative path to a file used in place of '.slather.yml'"
 
   def execute
+    setup_ymlfile
     xcodeproj_path_to_open = xcodeproj_path || Slather::Project.yml["xcodeproj"]
     unless xcodeproj_path_to_open
       raise StandardError, "Must provide a .xcodeproj either via the 'slather [SUBCOMMAND] [PROJECT].xcodeproj' command or through .slather.yml"
@@ -12,4 +14,8 @@ def execute
     project.setup_for_coverage(format ? format.to_sym : :auto)
     project.save
   end
+
+  def setup_ymlfile
+    Slather::Project.yml_filename = ymlfile if ymlfile
+  end
 end
diff --git a/lib/slather/coverage_file.rb b/lib/slather/coverage_file.rb
index cd3fc01..0d2c24c 100644
--- a/lib/slather/coverage_file.rb
+++ b/lib/slather/coverage_file.rb
@@ -1,5 +1,5 @@
-require 'slather/coverage_info'
-require 'slather/coveralls_coverage'
+require_relative 'coverage_info'
+require_relative 'coveralls_coverage'
 
 module Slather
   class CoverageFile
diff --git a/lib/slather/profdata_coverage_file.rb b/lib/slather/profdata_coverage_file.rb
index 57ba9b7..07a2eac 100644
--- a/lib/slather/profdata_coverage_file.rb
+++ b/lib/slather/profdata_coverage_file.rb
@@ -1,5 +1,5 @@
-require 'slather/coverage_info'
-require 'slather/coveralls_coverage'
+require_relative 'coverage_info'
+require_relative 'coveralls_coverage'
 require 'digest/md5'
 
 module Slather
diff --git a/lib/slather/project.rb b/lib/slather/project.rb
index 2253431..17b1e95 100755
--- a/lib/slather/project.rb
+++ b/lib/slather/project.rb
@@ -311,8 +311,14 @@ def dedupe(coverage_files)
     end
     private :dedupe
 
+    @@ymlfile = '.slather.yml'
+
+    def self.yml_filename=(var)
+      @@ymlfile = var
+    end
+
     def self.yml_filename
-      '.slather.yml'
+      @@ymlfile
     end
 
     def self.yml