diff --git a/min/builder/index.php b/min/builder/index.php
index 258fa72..35e10a9 100644
--- a/min/builder/index.php
+++ b/min/builder/index.php
@@ -220,12 +220,13 @@ by Minify. E.g. <code>@import "<span class=minRoot>/min/?</span>g=css2";</code><
 <?php
 $content = ob_get_clean();
 
-if (empty($min_cachePath)) {
-    $cache = new Minify_Cache_File('', $min_cacheFileLocking);
-} elseif (is_object($min_cachePath)) {
-    $cache = $min_cachePath;
-} else {
+if (!isset($min_cachePath)) {
+    $min_cachePath = '';
+}
+if (is_string($min_cachePath)) {
     $cache = new Minify_Cache_File($min_cachePath, $min_cacheFileLocking);
+} else {
+    $cache = $min_cachePath;
 }
 
 $env = new Minify_Env();
diff --git a/min/index.php b/min/index.php
index 789db85..783bbea 100644
--- a/min/index.php
+++ b/min/index.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * Front controller for default Minify implementation
+ * Sets up MinApp controller and serves files
  * 
  * DO NOT EDIT! Configure this utility via config.php and groupsConfig.php
  * 
@@ -31,30 +31,28 @@ if (isset($_GET['test'])) {
 require "$min_libPath/Minify/Loader.php";
 Minify_Loader::register();
 
+// use an environment object to encapsulate all input
 $server = $_SERVER;
 if ($min_documentRoot) {
     $server['DOCUMENT_ROOT'] = $min_documentRoot;
 }
-
 $env = new Minify_Env(array(
     'server' => $server,
-
-    // move these...
-    'allowDebug' => $min_allowDebugFlag,
-    'uploaderHoursBehind' => $min_uploaderHoursBehind,
 ));
 
+// setup cache
 if (!isset($min_cachePath)) {
-    $cache = new Minify_Cache_File('', $min_cacheFileLocking);
-} elseif (is_object($min_cachePath)) {
-    // let type hinting catch type error
-    $cache = $min_cachePath;
-} else {
+    $min_cachePath = '';
+}
+if (is_string($min_cachePath)) {
     $cache = new Minify_Cache_File($min_cachePath, $min_cacheFileLocking);
+} else {
+    $cache = $min_cachePath;
 }
 
 $server = new Minify($cache);
 
+// TODO probably should do this elsewhere...
 $min_serveOptions['minifierOptions']['text/css']['docRoot'] = $env->getDocRoot();
 $min_serveOptions['minifierOptions']['text/css']['symlinks'] = $min_symlinks;
 // auto-add targets to allowDirs
@@ -63,6 +61,7 @@ foreach ($min_symlinks as $uri => $target) {
 }
 
 if ($min_allowDebugFlag) {
+    // TODO get rid of static stuff
     $min_serveOptions['debug'] = Minify_DebugDetector::shouldDebugRequest($env);
 }
 
@@ -70,6 +69,7 @@ if ($min_errorLogger) {
     if (true === $min_errorLogger) {
         $min_errorLogger = FirePHP::getInstance(true);
     }
+    // TODO get rid of global state
     Minify_Logger::setLogger($min_errorLogger);
 }
 
@@ -89,6 +89,8 @@ if ($env->get('f') || null !== $env->get('g')) {
     if (! isset($min_serveController)) {
 
         $sourceFactoryOptions = array();
+
+        // translate legacy setting to option for source factory
         if (isset($min_serveOptions['minApp']['noMinPattern'])) {
             $sourceFactoryOptions['noMinPattern'] = $min_serveOptions['minApp']['noMinPattern'];
         }
diff --git a/min/lib/Minify/Controller/Base.php b/min/lib/Minify/Controller/Base.php
index 6c83a78..b601d77 100644
--- a/min/lib/Minify/Controller/Base.php
+++ b/min/lib/Minify/Controller/Base.php
@@ -24,11 +24,6 @@ abstract class Minify_Controller_Base implements Minify_ControllerInterface {
      */
     protected $sourceFactory;
 
-    /**
-     * @var string
-     */
-    protected $type;
-
     /**
      * @param Minify_Env            $env
      * @param Minify_Source_Factory $sourceFactory
diff --git a/min/lib/Minify/Controller/Files.php b/min/lib/Minify/Controller/Files.php
index d70b8cd..29cf712 100644
--- a/min/lib/Minify/Controller/Files.php
+++ b/min/lib/Minify/Controller/Files.php
@@ -17,9 +17,6 @@
  *     )
  * ));
  * </code>
- * 
- * As a shortcut, the controller will replace "//" at the beginning
- * of a filename with $_SERVER['DOCUMENT_ROOT'] . '/'.
  *
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
@@ -30,13 +27,13 @@ class Minify_Controller_Files extends Minify_Controller_Base {
      * Set up file sources
      * 
      * @param array $options controller and Minify options
-     * @return array Minify options
+     * @return Minify_ServeConfiguration
      * 
      * Controller options:
      * 
      * 'files': (required) array of complete file paths, or a single path
      */
-    public function createConfiguration($options) {
+    public function createConfiguration(array $options) {
         // strip controller options
         
         $files = $options['files'];
@@ -50,27 +47,20 @@ class Minify_Controller_Files extends Minify_Controller_Base {
         
         $sources = array();
         foreach ($files as $file) {
-            if ($file instanceof Minify_Source) {
+            if ($file instanceof Minify_SourceInterface) {
                 $sources[] = $file;
                 continue;
             }
-            if (0 === strpos($file, '//')) {
-                $file = $_SERVER['DOCUMENT_ROOT'] . substr($file, 1);
-            }
-            $realPath = realpath($file);
-            if (is_file($realPath)) {
-                $sources[] = new Minify_Source(array(
-                    'filepath' => $realPath
-                ));    
-            } else {
-                $this->log("The path \"{$file}\" could not be found (or was not a file)");
-                return $options;
+            try {
+                $sources[] = $this->sourceFactory->makeSource(array(
+                    'filepath' => $file,
+                ));
+            } catch (Minify_Source_FactoryException $e) {
+                $this->log($e->getMessage());
+                return new Minify_ServeConfiguration($options);
             }
         }
-        if ($sources) {
-            $this->sources = $sources;
-        }
-        return $options;
+        return new Minify_ServeConfiguration($options, $sources);
     }
 }
 
diff --git a/min/lib/Minify/Controller/Groups.php b/min/lib/Minify/Controller/Groups.php
index 8bdd251..9fec54c 100644
--- a/min/lib/Minify/Controller/Groups.php
+++ b/min/lib/Minify/Controller/Groups.php
@@ -20,13 +20,10 @@
  * If the above code were placed in /serve.php, it would enable the URLs
  * /serve.php/js and /serve.php/css
  * 
- * As a shortcut, the controller will replace "//" at the beginning
- * of a filename with $_SERVER['DOCUMENT_ROOT'] . '/'.
- * 
  * @package Minify
  * @author Stephen Clay <steve@mrclay.org>
  */
-class Minify_Controller_Groups extends Minify_Controller_Base {
+class Minify_Controller_Groups extends Minify_Controller_Files {
     
     /**
      * Set up groups of files as sources
@@ -38,54 +35,37 @@ class Minify_Controller_Groups extends Minify_Controller_Base {
      *
      * @return array Minify options
      */
-    public function createConfiguration($options) {
+    public function createConfiguration(array $options) {
         // strip controller options
         $groups = $options['groups'];
         unset($options['groups']);
+
+        $server = $this->env->server();
         
         // mod_fcgid places PATH_INFO in ORIG_PATH_INFO
-        $pi = isset($_SERVER['ORIG_PATH_INFO'])
-            ? substr($_SERVER['ORIG_PATH_INFO'], 1) 
-            : (isset($_SERVER['PATH_INFO'])
-                ? substr($_SERVER['PATH_INFO'], 1) 
+        $pathInfo = isset($server['ORIG_PATH_INFO'])
+            ? substr($server['ORIG_PATH_INFO'], 1)
+            : (isset($server['PATH_INFO'])
+                ? substr($server['PATH_INFO'], 1)
                 : false
             );
-        if (false === $pi || ! isset($groups[$pi])) {
+        if (false === $pathInfo || ! isset($groups[$pathInfo])) {
             // no PATH_INFO or not a valid group
-            $this->log("Missing PATH_INFO or no group set for \"$pi\"");
-            return $options;
+            $this->log("Missing PATH_INFO or no group set for \"$pathInfo\"");
+            return new Minify_ServeConfiguration($options);
         }
-        $sources = array();
-        
-        $files = $groups[$pi];
+
+        $files = $groups[$pathInfo];
         // if $files is a single object, casting will break it
         if (is_object($files)) {
             $files = array($files);
         } elseif (! is_array($files)) {
             $files = (array)$files;
         }
-        foreach ($files as $file) {
-            if ($file instanceof Minify_Source) {
-                $sources[] = $file;
-                continue;
-            }
-            if (0 === strpos($file, '//')) {
-                $file = $_SERVER['DOCUMENT_ROOT'] . substr($file, 1);
-            }
-            $realPath = realpath($file);
-            if (is_file($realPath)) {
-                $sources[] = new Minify_Source(array(
-                    'filepath' => $realPath
-                ));    
-            } else {
-                $this->log("The path \"{$file}\" could not be found (or was not a file)");
-                return $options;
-            }
-        }
-        if ($sources) {
-            $this->sources = $sources;
-        }
-        return $options;
+
+        $options['files'] = $files;
+
+        return parent::createConfiguration($options);
     }
 }
 
diff --git a/min/lib/Minify/Controller/Version1.php b/min/lib/Minify/Controller/Version1.php
deleted file mode 100644
index c6409cc..0000000
--- a/min/lib/Minify/Controller/Version1.php
+++ /dev/null
@@ -1,119 +0,0 @@
-<?php
-/**
- * Class Minify_Controller_Version1  
- * @package Minify
- */
-
-/**
- * Controller class for emulating version 1 of minify.php (mostly a proof-of-concept)
- * 
- * <code>
- * Minify::serve('Version1');
- * </code>
- * 
- * @package Minify
- * @author Stephen Clay <steve@mrclay.org>
- */
-class Minify_Controller_Version1 extends Minify_Controller_Base {
-    
-    /**
-     * Set up groups of files as sources
-     * 
-     * @param array $options controller and Minify options
-     * @return array Minify options
-     * 
-     */
-    public function createConfiguration($options) {
-        // PHP insecure by default: realpath() and other FS functions can't handle null bytes.
-        if (isset($_GET['files'])) {
-            $_GET['files'] = str_replace("\x00", '', (string)$_GET['files']);
-        }
-
-        self::_setupDefines();
-        if (MINIFY_USE_CACHE) {
-            $cacheDir = defined('MINIFY_CACHE_DIR')
-                ? MINIFY_CACHE_DIR
-                : '';
-            Minify::setCache($cacheDir);
-        }
-        $options['badRequestHeader'] = 'HTTP/1.0 404 Not Found';
-        $options['contentTypeCharset'] = MINIFY_ENCODING;
-
-        // The following restrictions are to limit the URLs that minify will
-        // respond to. Ideally there should be only one way to reference a file.
-        if (! isset($_GET['files'])
-            // verify at least one file, files are single comma separated, 
-            // and are all same extension
-            || ! preg_match('/^[^,]+\\.(css|js)(,[^,]+\\.\\1)*$/', $_GET['files'], $m)
-            // no "//" (makes URL rewriting easier)
-            || strpos($_GET['files'], '//') !== false
-            // no "\"
-            || strpos($_GET['files'], '\\') !== false
-            // no "./"
-            || preg_match('/(?:^|[^\\.])\\.\\//', $_GET['files'])
-        ) {
-            return $options;
-        }
-
-        $files = explode(',', $_GET['files']);
-        if (count($files) > MINIFY_MAX_FILES) {
-            return $options;
-        }
-        
-        // strings for prepending to relative/absolute paths
-        $prependRelPaths = dirname($_SERVER['SCRIPT_FILENAME'])
-            . DIRECTORY_SEPARATOR;
-        $prependAbsPaths = $_SERVER['DOCUMENT_ROOT'];
-        
-        $goodFiles = array();
-        $hasBadSource = false;
-        
-        $allowDirs = isset($options['allowDirs'])
-            ? $options['allowDirs']
-            : MINIFY_BASE_DIR;
-        
-        foreach ($files as $file) {
-            // prepend appropriate string for abs/rel paths
-            $file = ($file[0] === '/' ? $prependAbsPaths : $prependRelPaths) . $file;
-            // make sure a real file!
-            $file = realpath($file);
-            // don't allow unsafe or duplicate files
-            if (parent::_fileIsSafe($file, $allowDirs) 
-                && !in_array($file, $goodFiles)) 
-            {
-                $goodFiles[] = $file;
-                $srcOptions = array(
-                    'filepath' => $file
-                );
-                $this->sources[] = new Minify_Source($srcOptions);
-            } else {
-                $hasBadSource = true;
-                break;
-            }
-        }
-        if ($hasBadSource) {
-            $this->sources = array();
-        }
-        if (! MINIFY_REWRITE_CSS_URLS) {
-            $options['rewriteCssUris'] = false;
-        }
-        return $options;
-    }
-    
-    private static function _setupDefines()
-    {
-        $defaults = array(
-            'MINIFY_BASE_DIR' => realpath($_SERVER['DOCUMENT_ROOT'])
-            ,'MINIFY_ENCODING' => 'utf-8'
-            ,'MINIFY_MAX_FILES' => 16
-            ,'MINIFY_REWRITE_CSS_URLS' => true
-            ,'MINIFY_USE_CACHE' => true
-        );
-        foreach ($defaults as $const => $val) {
-            if (! defined($const)) {
-                define($const, $val);
-            }
-        }
-    }
-}
-