diff --git a/bin/auth_ejabberd.php b/bin/auth_ejabberd.php
index ca2a2ad3d8..247635b33d 100755
--- a/bin/auth_ejabberd.php
+++ b/bin/auth_ejabberd.php
@@ -1,22 +1,10 @@
 #!/usr/bin/env php
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * ejabberd extauth script for the integration with friendica
  *
diff --git a/bin/console.php b/bin/console.php
index 1c620eeb6f..a5aeb3d83e 100755
--- a/bin/console.php
+++ b/bin/console.php
@@ -1,22 +1,10 @@
 #!/usr/bin/env php
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  */
 
diff --git a/bin/daemon.php b/bin/daemon.php
index aa983cb258..6b62039ee7 100755
--- a/bin/daemon.php
+++ b/bin/daemon.php
@@ -1,23 +1,10 @@
 #!/usr/bin/env php
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
 /**
diff --git a/bin/testargs.php b/bin/testargs.php
index 3bcb07e114..22db41c3ad 100644
--- a/bin/testargs.php
+++ b/bin/testargs.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * During installation we need to check if register_argc_argv is
  * enabled for the command line PHP processor, because otherwise
diff --git a/bin/worker.php b/bin/worker.php
index 7c1c5917fa..841ac3574a 100755
--- a/bin/worker.php
+++ b/bin/worker.php
@@ -1,22 +1,10 @@
 #!/usr/bin/env php
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * Starts the background processing
  */
diff --git a/index.php b/index.php
index 1b62b71c1c..09620ab4c1 100644
--- a/index.php
+++ b/index.php
@@ -1,23 +1,9 @@
 <?php
-/**
- * @copyright Copyright (C) 2010-2024, the Friendica project
- *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- */
+
+// Copyright (C) 2010-2024, the Friendica project
+// SPDX-FileCopyrightText: 2010-2024 the Friendica project
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 use Dice\Dice;
 
diff --git a/mod/item.php b/mod/item.php
index d6bcd39029..445e2ebc22 100644
--- a/mod/item.php
+++ b/mod/item.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * This is the POST destination for most all locally posted
  * text stuff. This function handles status, wall-to-wall status,
diff --git a/mod/lostpass.php b/mod/lostpass.php
index 51e0ba8db6..b16a4e10ec 100644
--- a/mod/lostpass.php
+++ b/mod/lostpass.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  */
 
diff --git a/mod/message.php b/mod/message.php
index 6c1aed0625..6ee7a8745a 100644
--- a/mod/message.php
+++ b/mod/message.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  */
 
diff --git a/mod/notes.php b/mod/notes.php
index 92a0ff514a..27e7a9dc76 100644
--- a/mod/notes.php
+++ b/mod/notes.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  */
 
diff --git a/mod/photos.php b/mod/photos.php
index 5aa18f9fb9..4b8a0c6210 100644
--- a/mod/photos.php
+++ b/mod/photos.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  */
 
diff --git a/mod/update_contact.php b/mod/update_contact.php
index 474b545040..76993c0ce3 100644
--- a/mod/update_contact.php
+++ b/mod/update_contact.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * See update_profile.php for documentation
  *
diff --git a/mod/update_notes.php b/mod/update_notes.php
index 6bbd3898f9..de455f5f00 100644
--- a/mod/update_notes.php
+++ b/mod/update_notes.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * AJAX synchronisation of notes page
  */
diff --git a/update.php b/update.php
index f2f5072eba..dbca0c37ed 100644
--- a/update.php
+++ b/update.php
@@ -1,21 +1,9 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2024, the Friendica project
+ * Copyright (C) 2010-2024, the Friendica project
+ * SPDX-FileCopyrightText: 2010-2024 the Friendica project
  *
- * @license GNU AGPL version 3 or any later version
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
  *
  * Automatic post-database structure change updates
  *