diff --git a/CodeIgniterTarget.php b/CodeIgniterTarget.php
index 807a422..23ac362 100644
--- a/CodeIgniterTarget.php
+++ b/CodeIgniterTarget.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once('PerfTarget.php');
 
 final class CodeIgniterTarget extends PerfTarget {
   public function __construct(
diff --git a/DatabaseInstaller.php b/DatabaseInstaller.php
index 9d63681..5b1e5b2 100644
--- a/DatabaseInstaller.php
+++ b/DatabaseInstaller.php
@@ -9,8 +9,6 @@
  *
  */
 
-require_once('PerfOptions.php');
-require_once('Utils.php');
 
 final class DatabaseInstaller {
   private ?string $databaseName;
diff --git a/Drupal7Target.php b/Drupal7Target.php
index 2283d20..6da297c 100644
--- a/Drupal7Target.php
+++ b/Drupal7Target.php
@@ -9,8 +9,6 @@
  *
  */
 
-require_once('DatabaseInstaller.php');
-require_once('PerfTarget.php');
 
 final class Drupal7Target extends PerfTarget {
   public function __construct(
diff --git a/FibonacciTarget.php b/FibonacciTarget.php
index 9413bb3..47e5a0a 100644
--- a/FibonacciTarget.php
+++ b/FibonacciTarget.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once('PerfTarget.php');
 
 final class FibonacciTarget extends PerfTarget {
   public function getSanityCheckPath(): string {
diff --git a/HHVMDaemon.php b/HHVMDaemon.php
index 4f379bb..31c7cd7 100644
--- a/HHVMDaemon.php
+++ b/HHVMDaemon.php
@@ -9,10 +9,6 @@
  *
  */
 
-require_once('PerfOptions.php');
-require_once('PerfSettings.php');
-require_once('PHPEngine.php');
-require_once('Process.php');
 
 final class HHVMDaemon extends PHPEngine {
   private PerfTarget $target;
diff --git a/HelloWorldTarget.php b/HelloWorldTarget.php
index ed6180e..04648a8 100644
--- a/HelloWorldTarget.php
+++ b/HelloWorldTarget.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once('PerfTarget.php');
 
 final class HelloWorldTarget extends PerfTarget {
   public function getSanityCheckPath(): string {
diff --git a/LaravelTarget.php b/LaravelTarget.php
index 4c64e79..8f4ddc7 100644
--- a/LaravelTarget.php
+++ b/LaravelTarget.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once('PerfTarget.php');
 
 final class LaravelTarget extends PerfTarget {
   public function __construct(
diff --git a/Magento1Target.php b/Magento1Target.php
index 38a232d..c188acb 100644
--- a/Magento1Target.php
+++ b/Magento1Target.php
@@ -9,8 +9,6 @@
  *
  */
 
-require_once('DatabaseInstaller.php');
-require_once('PerfTarget.php');
 
 final class Magento1Target extends PerfTarget {
   private DatabaseInstaller $installer;
diff --git a/NginxDaemon.php b/NginxDaemon.php
index c63f803..a6fe909 100644
--- a/NginxDaemon.php
+++ b/NginxDaemon.php
@@ -9,9 +9,6 @@
  *
  */
 
-require_once('PerfOptions.php');
-require_once('PerfSettings.php');
-require_once('Process.php');
 
 final class NginxDaemon extends Process {
 
diff --git a/PHP5Daemon.php b/PHP5Daemon.php
index 7630f7e..cbc77ac 100644
--- a/PHP5Daemon.php
+++ b/PHP5Daemon.php
@@ -9,9 +9,6 @@
  *
  */
 
-require_once('PerfOptions.php');
-require_once('PerfSettings.php');
-require_once('PHPEngine.php');
 
 final class PHP5Daemon extends PHPEngine {
   private PerfTarget $target;
diff --git a/PHPEngine.php b/PHPEngine.php
index 052ccfb..f4ec65e 100644
--- a/PHPEngine.php
+++ b/PHPEngine.php
@@ -9,7 +9,6 @@
  *
  */
 
-require('Process.php');
 
 abstract class PHPEngine extends Process {
 }
diff --git a/PerfOptions.php b/PerfOptions.php
index a2d95d1..4f4921e 100644
--- a/PerfOptions.php
+++ b/PerfOptions.php
@@ -9,14 +9,6 @@
  *
  */
 
-require_once('CodeIgniterTarget.php');
-require_once('Drupal7Target.php');
-require_once('FibonacciTarget.php');
-require_once('HelloWorldTarget.php');
-require_once('LaravelTarget.php');
-require_once('SugarCRMTarget.php');
-require_once('WordpressTarget.php');
-require_once('Magento1Target.php');
 
 final class PerfOptions {
   public bool $help;
diff --git a/PerfTarget.php b/PerfTarget.php
index 315b3bc..fb37efb 100644
--- a/PerfTarget.php
+++ b/PerfTarget.php
@@ -9,7 +9,6 @@
  *
  */
 
-require_once('Utils.php');
 
 abstract class PerfTarget {
   public function install(): void { }
diff --git a/Siege.php b/Siege.php
index 89f5dd6..a1beedf 100644
--- a/Siege.php
+++ b/Siege.php
@@ -9,11 +9,6 @@
  *
  */
 
-require_once('PerfOptions.php');
-require_once('PerfSettings.php');
-require_once('Process.php');
-require_once('RequestMode.php');
-require_once('SiegeStats.php');
 
 final class Siege extends Process {
   use SiegeStats;
diff --git a/SiegeStats.php b/SiegeStats.php
index e5068a3..05c016a 100644
--- a/SiegeStats.php
+++ b/SiegeStats.php
@@ -9,7 +9,6 @@
  *
  */
 
-require('SiegeFields.php');
 
 trait SiegeStats {
   abstract protected function getLogFilePath(): string;
diff --git a/SugarCRMTarget.php b/SugarCRMTarget.php
index 9fc31cb..ca4bedd 100644
--- a/SugarCRMTarget.php
+++ b/SugarCRMTarget.php
@@ -9,8 +9,6 @@
  *
  */
 
-require_once('DatabaseInstaller.php');
-require_once('PerfTarget.php');
 
 final class SugarCRMTarget extends PerfTarget {
   public function __construct(
diff --git a/WordpressTarget.php b/WordpressTarget.php
index c89ec22..3e3be7e 100644
--- a/WordpressTarget.php
+++ b/WordpressTarget.php
@@ -9,8 +9,6 @@
  *
  */
 
-require_once('DatabaseInstaller.php');
-require_once('PerfTarget.php');
 
 final class WordpressTarget extends PerfTarget {
 
diff --git a/perf.php b/perf.php
index 339ee3a..35724cd 100644
--- a/perf.php
+++ b/perf.php
@@ -9,11 +9,6 @@
  *
  */
 
-require_once('HHVMDaemon.php');
-require_once('PHP5Daemon.php');
-require_once('NginxDaemon.php');
-require_once('PerfOptions.php');
-require_once('Siege.php');
 
 function check_cpufreq(): void {
   $sys_cpu_root = '/sys/devices/system/cpu';