diff --git a/oci-framasite/oci-framagrav-uploader.php b/oci-framasite/oci-framagrav-uploader.php
new file mode 100644
index 0000000..5ae803f
--- /dev/null
+++ b/oci-framasite/oci-framagrav-uploader.php
@@ -0,0 +1,97 @@
+<?php
+
+// We have a ZIP file !
+$filename = $_FILES["zip_file"]["name"];
+$source = $_FILES["zip_file"]["tmp_name"];
+$type = $_FILES["zip_file"]["type"];
+
+$name = explode(".", $filename);
+$accepted_types = array('application/zip', 'application/x-zip-compressed', 'multipart/x-zip', 'application/x-compressed');
+foreach($accepted_types as $mime_type) {
+    if($mime_type == $type) {
+        $okay = true;
+        break;
+    }
+}
+
+$continue = strtolower($name[1]) == 'zip' ? true : false;
+if(!$continue) {
+    echo "Votre fichier n'est pas une archive ZIP.";
+    exit();
+}
+
+// Path and name
+$filenoext = basename ($filename, '.zip');
+$filenoext = basename ($filenoext, '.ZIP');
+$targetdir = $path . $filenoext;
+$targetzip = $path . $filename;
+
+// Uncompress ZIP then remove file
+if(move_uploaded_file($source, $targetzip)) {
+    $zip = new ZipArchive();
+    $x = $zip->open($targetzip);
+    if ($x === true) {
+        $zip->extractTo('.');
+        $zip->close();
+        unlink($targetzip);
+    }
+} else {
+    echo nl2br("Une erreur vient de se produire lors du téléversement de votre fichier.\r\n");
+    exit();
+}
+
+// Download latest CMS zip with cURL
+$ch = curl_init();
+$source = "https://ouvaton.coop/oci/framagrav-themes.zip";
+curl_setopt($ch, CURLOPT_URL, $source);
+curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
+curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
+$data = curl_exec($ch);
+// If any cURL error stop processing
+if(curl_errno($ch)) {
+    echo 'Erreur cURL : '.curl_error($ch);
+    curl_close($ch);
+    exit;
+}
+
+// Check HTTP code
+switch ($http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE)) {
+case 200:
+    // Create CMS zip
+    $destination = "themes.zip";
+    $file = fopen($destination, "w+");
+    fputs($file, $data);
+    fclose($file);
+    curl_close($ch);
+
+    // Unzip archive file
+    $file = 'themes.zip';
+    $zip = new ZipArchive;
+    if ($zip->open($file) === TRUE) {
+            $zip->extractTo('.');
+            $zip->close();
+    } else {
+        echo nl2br("Une erreur lors de la décompression de l'archive vient de se produire, contactez l'assistance !\r\n");
+        exit;
+    }
+    // Zip archive is not needed anymore
+    unlink('themes.zip');
+
+    // Website URI
+    $host  = $_SERVER['HTTP_HOST'];
+    // Set URI
+    $grav_custom = "custom_base_url: 'https://".$host."'";
+    $set_grav_custom = file_put_contents('user/config/system.yaml', $grav_custom.PHP_EOL , FILE_APPEND | LOCK_EX);
+
+    // Remove scripts
+    unlink('oci-framagrav.php');
+    unlink(__FILE__);
+    echo "L'installation est terminée !";
+    exit;
+default:
+    // If any HTTP error stop processing
+    echo nl2br("Code HTTP : ".$http_code."\r\n");
+    curl_close($ch);
+    exit;
+}
+?>
diff --git a/oci-framasite/oci-framagrav.php b/oci-framasite/oci-framagrav.php
index 8c15a00..e69de29 100644
--- a/oci-framasite/oci-framagrav.php
+++ b/oci-framasite/oci-framagrav.php
@@ -1,128 +0,0 @@
-<?php
-
-function dir_is_empty($dirname)
-{
-  // Check if directory is empty but ignore install script
-  if (!is_dir($dirname)) return false;
-  foreach (scandir($dirname) as $file) {
-    if (!in_array($file, array('.','..','oci-framagrav.php'))) return false;
-  }
-  return true;
-}
-
-// If install directory is not empty stop processing
-$dest = dirname(__FILE__).'/';
-if (dir_is_empty($dest) === false) {
-    echo nl2br("Le dossier httpdocs/ doit être vide pour y migrer votre Framasite.\r\n");
-    exit();
-}
-
-// We have a ZIP file !
-if($_FILES["zip_file"]["name"]) {
-    $filename = $_FILES["zip_file"]["name"];
-    $source = $_FILES["zip_file"]["tmp_name"];
-    $type = $_FILES["zip_file"]["type"];
-
-    $name = explode(".", $filename);
-    $accepted_types = array('application/zip', 'application/x-zip-compressed', 'multipart/x-zip', 'application/x-compressed');
-    foreach($accepted_types as $mime_type) {
-        if($mime_type == $type) {
-            $okay = true;
-            break;
-        } 
-    }
-
-    $continue = strtolower($name[1]) == 'zip' ? true : false;
-    if(!$continue) {
-        $message = "Votre fichier n'est pas une archive ZIP.";
-    }
-
-    /* PHP current path */
-    $filenoext = basename ($filename, '.zip');  // absolute path (lowercase)
-    $filenoext = basename ($filenoext, '.ZIP');  // absolute path (uppercase)
-
-    $targetdir = $path . $filenoext; // target directory
-    $targetzip = $path . $filename; // target zip file
-
-    /* here it is really happening */
-    if(move_uploaded_file($source, $targetzip)) {
-        $zip = new ZipArchive();
-        $x = $zip->open($targetzip);  // open the zip file to extract
-        if ($x === true) {
-            $zip->extractTo('.'); // place in the directory with same name  
-            $zip->close();
-
-            unlink($targetzip);
-        }
-    } else {    
-        echo nl2br("Une erreur vient de se produire lors du téléversement de votre fichier.\r\n");
-        exit();
-    }
-
-    // Download latest CMS zip with cURL
-    $ch = curl_init();
-    $source = "https://ouvaton.coop/oci/framagrav-themes.zip";
-    curl_setopt($ch, CURLOPT_URL, $source);
-    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
-    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
-    $data = curl_exec($ch);
-    // If any cURL error stop processing
-    if(curl_errno($ch)) {
-    echo nl2br("Une erreur vient de se produire. Rechargez la page pour essayer à nouveau, ou contactez l'assistance si le problème persiste.\r\n");
-    echo 'Erreur cURL : '.curl_error($ch);
-    curl_close($ch);
-    exit;
-    }
-
-    // Check HTTP code
-    switch ($http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE)) {
-    case 200:
-        // Create CMS zip
-        $destination = "themes.zip";
-        $file = fopen($destination, "w+");
-        fputs($file, $data);
-        fclose($file);
-        curl_close($ch);
-
-        // Unzip archive file
-        $file = 'themes.zip';
-        $zip = new ZipArchive;
-        if ($zip->open($file) === TRUE) {
-                $zip->extractTo('.');
-                $zip->close();
-        } else {echo nl2br("Une erreur lors de la décompression de l'archive vient de se produire, contactez l'assistance !\r\n");}
-        // Zip archive is not needed anymore
-        unlink('themes.zip');
-
-        // Redirecting user to CMS install page
-        $host  = $_SERVER['HTTP_HOST'];
-        $uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
-        header("Location: http://$host$uri/");
-        // Remove script
-        unlink(__FILE__);
-        exit;
-    default:
-        // If any HTTP error stop processing
-        echo nl2br("Une erreur vient de se produire. Rechargez la page pour essayer à nouveau, ou contactez l'assistance si le problème persiste.\r\n");
-        echo nl2br("Code HTTP : ".$http_code."\r\n");
-        curl_close($ch);
-        exit;
-    }
-}
-?>
-
-<!DOCTYPE html>
-<html>
-<head>
-    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-    <title>Migration de votre Framasite chez Ouvaton</title>
-</head>
-<body>
-    <?php if($message) echo "<p>$message</p>"; ?>
-    <form enctype="multipart/form-data" method="post" action="">
-        <label>Sélectionnez l'archive ZIP de votre site : <input type="file" name="zip_file" /></label>
-        <br />
-        <input type="submit" name="submit" value="Envoyer" />
-    </form>
-</body>
-</html>
\ No newline at end of file