diff --git a/_cleanup.php b/_cleanup.php
index 3c30efdd0..d7649bdc6 100644
--- a/_cleanup.php
+++ b/_cleanup.php
@@ -16,6 +16,12 @@ if (php_sapi_name() !== 'cli') {
     exit;
 }
 
+// Get all constants
+require_once BB_PATH . '/library/defines.php';
+
+// Include CLI functions
+require INC_DIR . '/functions_cli.php';
+
 $items = [
     '.github',
     '.cliffignore',
@@ -41,44 +47,3 @@ foreach ($items as $item) {
         removeDir($path);
     }
 }
-
-/**
- * Remove target file
- *
- * @param string $file Path to file
- */
-function removeFile(string $file): void
-{
-    if (unlink($file)) {
-        echo "- File removed: $file" . PHP_EOL;
-    } else {
-        echo "- File cannot be removed: $file" . PHP_EOL;
-        exit;
-    }
-}
-
-/**
- * Remove folder (recursively)
- *
- * @param string $dir Path to folder
- */
-function removeDir(string $dir): void
-{
-    $it = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS);
-    $files = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);
-
-    foreach ($files as $file) {
-        if ($file->isDir()) {
-            removeDir($file->getPathname());
-        } else {
-            removeFile($file->getPathname());
-        }
-    }
-
-    if (rmdir($dir)) {
-        echo "- Folder removed: $dir" . PHP_EOL;
-    } else {
-        echo "- Folder cannot be removed: $dir" . PHP_EOL;
-        exit;
-    }
-}
diff --git a/install.php b/install.php
index ff88365d3..ba0a6ae25 100644
--- a/install.php
+++ b/install.php
@@ -14,6 +14,12 @@ if (php_sapi_name() !== 'cli') {
     die('Please run <code style="background:#222;color:#00e01f;padding:2px 6px;border-radius:3px;">php ' . basename(__FILE__) . '</code> in CLI mode');
 }
 
+// Get all constants
+require_once BB_PATH . '/library/defines.php';
+
+// Include CLI functions
+require INC_DIR . '/functions_cli.php';
+
 /**
  * System requirements
  */
@@ -34,125 +40,6 @@ define('CHECK_REQUIREMENTS', [
     ],
 ]);
 
-/**
- * Colored console output
- *
- * @param string $str
- * @param string $type
- * @return void
- */
-function out(string $str, string $type = ''): void
-{
-    echo match ($type) {
-        'error' => "\033[31m$str \033[0m\n",
-        'success' => "\033[32m$str \033[0m\n",
-        'warning' => "\033[33m$str \033[0m\n",
-        'info' => "\033[36m$str \033[0m\n",
-        'debug' => "\033[90m$str \033[0m\n",
-        default => "$str\n",
-    };
-}
-
-/**
- * Run process with realtime output
- *
- * @param string $cmd
- * @param string|null $input
- * @return void
- */
-function runProcess(string $cmd, string $input = null): void
-{
-    $descriptorSpec = [
-        0 => ['pipe', 'r'],
-        1 => ['pipe', 'w'],
-        2 => ['pipe', 'w'],
-    ];
-
-    $process = proc_open($cmd, $descriptorSpec, $pipes);
-
-    if (!is_resource($process)) {
-        out('- Could not start subprocess', 'error');
-        return;
-    }
-
-    // Write input if provided
-    if ($input !== null) {
-        fwrite($pipes[0], $input);
-        fclose($pipes[0]);
-    }
-
-    // Read and print output in real-time
-    while (!feof($pipes[1])) {
-        echo stream_get_contents($pipes[1], 1);
-        flush(); // Flush output buffer for immediate display
-    }
-
-    // Read and print error output
-    while (!feof($pipes[2])) {
-        echo stream_get_contents($pipes[2], 1);
-        flush();
-    }
-
-    fclose($pipes[1]);
-    fclose($pipes[2]);
-
-    proc_close($process);
-}
-
-/**
- * Remove directory recursively
- *
- * @param string $dir
- * @return void
- */
-function rmdir_rec(string $dir): void
-{
-    $it = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS);
-    $files = new RecursiveIteratorIterator($it,
-        RecursiveIteratorIterator::CHILD_FIRST);
-    foreach ($files as $file) {
-        if ($file->isDir()) {
-            rmdir($file->getPathname());
-        } else {
-            unlink($file->getPathname());
-        }
-    }
-    rmdir($dir);
-}
-
-/**
- * Setting permissions recursively
- *
- * @param string $dir
- * @param int $dirPermissions
- * @param int $filePermissions
- * @return void
- */
-function chmod_r(string $dir, int $dirPermissions, int $filePermissions): void
-{
-    $dp = opendir($dir);
-    while ($file = readdir($dp)) {
-        if (($file == '.') || ($file == '..')) {
-            continue;
-        }
-
-        $fullPath = realpath($dir . '/' . $file);
-        if (is_dir($fullPath)) {
-            out("- Directory: $fullPath");
-            chmod($fullPath, $dirPermissions);
-            chmod_r($fullPath, $dirPermissions, $filePermissions);
-        } elseif (is_file($fullPath)) {
-            // out("- File: $fullPath");
-            chmod($fullPath, $filePermissions);
-        } else {
-            out("- Cannot find target path: $fullPath", 'error');
-            return;
-        }
-    }
-
-    closedir($dp);
-}
-
 // Welcoming message
 out("--- TorrentPier Installer ---\n", 'info');
 
diff --git a/library/includes/functions_cli.php b/library/includes/functions_cli.php
new file mode 100644
index 000000000..37864e20a
--- /dev/null
+++ b/library/includes/functions_cli.php
@@ -0,0 +1,172 @@
+<?php
+/**
+ * TorrentPier – Bull-powered BitTorrent tracker engine
+ *
+ * @copyright Copyright (c) 2005-2025 TorrentPier (https://torrentpier.com)
+ * @link      https://github.com/torrentpier/torrentpier for the canonical source repository
+ * @license   https://github.com/torrentpier/torrentpier/blob/master/LICENSE MIT License
+ */
+
+if (!defined('BB_ROOT')) {
+    die(basename(__FILE__));
+}
+
+/**
+ * Remove target file
+ *
+ * @param string $file Path to file
+ */
+function removeFile(string $file): void
+{
+    if (unlink($file)) {
+        echo "- File removed: $file" . PHP_EOL;
+    } else {
+        echo "- File cannot be removed: $file" . PHP_EOL;
+        exit;
+    }
+}
+
+/**
+ * Remove folder (recursively)
+ *
+ * @param string $dir Path to folder
+ */
+function removeDir(string $dir): void
+{
+    $it = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS);
+    $files = new RecursiveIteratorIterator($it, RecursiveIteratorIterator::CHILD_FIRST);
+
+    foreach ($files as $file) {
+        if ($file->isDir()) {
+            removeDir($file->getPathname());
+        } else {
+            removeFile($file->getPathname());
+        }
+    }
+
+    if (rmdir($dir)) {
+        echo "- Folder removed: $dir" . PHP_EOL;
+    } else {
+        echo "- Folder cannot be removed: $dir" . PHP_EOL;
+        exit;
+    }
+}
+
+/**
+ * Colored console output
+ *
+ * @param string $str
+ * @param string $type
+ * @return void
+ */
+function out(string $str, string $type = ''): void
+{
+    echo match ($type) {
+        'error' => "\033[31m$str \033[0m\n",
+        'success' => "\033[32m$str \033[0m\n",
+        'warning' => "\033[33m$str \033[0m\n",
+        'info' => "\033[36m$str \033[0m\n",
+        'debug' => "\033[90m$str \033[0m\n",
+        default => "$str\n",
+    };
+}
+
+/**
+ * Run process with realtime output
+ *
+ * @param string $cmd
+ * @param string|null $input
+ * @return void
+ */
+function runProcess(string $cmd, string $input = null): void
+{
+    $descriptorSpec = [
+        0 => ['pipe', 'r'],
+        1 => ['pipe', 'w'],
+        2 => ['pipe', 'w'],
+    ];
+
+    $process = proc_open($cmd, $descriptorSpec, $pipes);
+
+    if (!is_resource($process)) {
+        out('- Could not start subprocess', 'error');
+        return;
+    }
+
+    // Write input if provided
+    if ($input !== null) {
+        fwrite($pipes[0], $input);
+        fclose($pipes[0]);
+    }
+
+    // Read and print output in real-time
+    while (!feof($pipes[1])) {
+        echo stream_get_contents($pipes[1], 1);
+        flush(); // Flush output buffer for immediate display
+    }
+
+    // Read and print error output
+    while (!feof($pipes[2])) {
+        echo stream_get_contents($pipes[2], 1);
+        flush();
+    }
+
+    fclose($pipes[1]);
+    fclose($pipes[2]);
+
+    proc_close($process);
+}
+
+/**
+ * Remove directory recursively
+ *
+ * @param string $dir
+ * @return void
+ */
+function rmdir_rec(string $dir): void
+{
+    $it = new RecursiveDirectoryIterator($dir, FilesystemIterator::SKIP_DOTS);
+    $files = new RecursiveIteratorIterator($it,
+        RecursiveIteratorIterator::CHILD_FIRST);
+    foreach ($files as $file) {
+        if ($file->isDir()) {
+            rmdir($file->getPathname());
+        } else {
+            unlink($file->getPathname());
+        }
+    }
+    rmdir($dir);
+}
+
+/**
+ * Setting permissions recursively
+ *
+ * @param string $dir
+ * @param int $dirPermissions
+ * @param int $filePermissions
+ * @return void
+ */
+function chmod_r(string $dir, int $dirPermissions, int $filePermissions): void
+{
+    $dp = opendir($dir);
+    while ($file = readdir($dp)) {
+        if (($file == '.') || ($file == '..')) {
+            continue;
+        }
+
+        $fullPath = realpath($dir . '/' . $file);
+        if (is_dir($fullPath)) {
+            out("- Directory: $fullPath");
+            chmod($fullPath, $dirPermissions);
+            chmod_r($fullPath, $dirPermissions, $filePermissions);
+        } elseif (is_file($fullPath)) {
+            // out("- File: $fullPath");
+            chmod($fullPath, $filePermissions);
+        } else {
+            out("- Cannot find target path: $fullPath", 'error');
+            return;
+        }
+    }
+
+    closedir($dp);
+}