*.scm: Use SPDX license identifiers.

Fixes https://gitlab.com/nonguix/nonguix/-/issues/224

* *.scm: Use SPDX license identifier and remove obsolete license
statement.

44 files changed, 44 insertions, 668 deletions

diff --git a/nongnu/ci.scm b/nongnu/ci.scm
index a4e2c72..db9e68a 100644
--- a/nongnu/ci.scm
+++ b/nongnu/ci.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021 Mathieu Othacehe <m.othacehe@gmail.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu ci)
   #:use-module (gnu ci)
diff --git a/nongnu/packages/anydesk.scm b/nongnu/packages/anydesk.scm
index 5ba0c7c..655e0e2 100644
--- a/nongnu/packages/anydesk.scm
+++ b/nongnu/packages/anydesk.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021 Korytov Pavel <thexcloud@gmail.com>
 ;;; Copyright © 2021 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages anydesk)
   #:use-module (gnu packages compression)
diff --git a/nongnu/packages/benchmark.scm b/nongnu/packages/benchmark.scm
index d6a36f9..feb2c7d 100644
--- a/nongnu/packages/benchmark.scm
+++ b/nongnu/packages/benchmark.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021-2022 Petr Hodina <phodina@protonmail.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages benchmark)
   #:use-module (guix packages)
diff --git a/nongnu/packages/cad.scm b/nongnu/packages/cad.scm
index c896a5f..c17bb35 100644
--- a/nongnu/packages/cad.scm
+++ b/nongnu/packages/cad.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021-2022 Petr Hodina <phodina@protonmail.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages cad)
   #:use-module (guix packages)
diff --git a/nongnu/packages/chrome.scm b/nongnu/packages/chrome.scm
index 832b17d..4994722 100644
--- a/nongnu/packages/chrome.scm
+++ b/nongnu/packages/chrome.scm
@@ -1,22 +1,7 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Giacomo Leidi <goodoldpaul@autistici.org>
 ;;; Copyright © 2022 Mathieu Othacehe <m.othacehe@gmail.com>
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages chrome)
   #:use-module (gnu packages base)
diff --git a/nongnu/packages/chromium.scm b/nongnu/packages/chromium.scm
index 56d0c6e..9580b8a 100644
--- a/nongnu/packages/chromium.scm
+++ b/nongnu/packages/chromium.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages chromium)
   #:use-module ((guix licenses) #:prefix license:)
diff --git a/nongnu/packages/clojure.scm b/nongnu/packages/clojure.scm
index 0bf8b45..074ba6a 100644
--- a/nongnu/packages/clojure.scm
+++ b/nongnu/packages/clojure.scm
@@ -1,22 +1,7 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2020 Jelle Licht <jlicht@fsfe.org>
 ;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages clojure)
   #:use-module (gnu packages compression)
diff --git a/nongnu/packages/compression.scm b/nongnu/packages/compression.scm
index dbb365a..bb0ae88 100644
--- a/nongnu/packages/compression.scm
+++ b/nongnu/packages/compression.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages compression)
   #:use-module (guix packages)
diff --git a/nongnu/packages/coq.scm b/nongnu/packages/coq.scm
index d86fffb..4c8b411 100644
--- a/nongnu/packages/coq.scm
+++ b/nongnu/packages/coq.scm
@@ -1,22 +1,7 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2021 Isaac Young <isyoung@pm.me>
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages coq)
   #:use-module (ice-9 match)
diff --git a/nongnu/packages/dotnet.scm b/nongnu/packages/dotnet.scm
index 6f77ea8..a45a1ca 100644
--- a/nongnu/packages/dotnet.scm
+++ b/nongnu/packages/dotnet.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021 Jelle Licht <jlicht@fsfe.org>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages dotnet)
   #:use-module (ice-9 match)
diff --git a/nongnu/packages/dyalog.scm b/nongnu/packages/dyalog.scm
index e3f6b1c..7408b68 100644
--- a/nongnu/packages/dyalog.scm
+++ b/nongnu/packages/dyalog.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 B. Wilson <x@wilsonb.com>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages dyalog)
   #:use-module (gnu packages autotools)
diff --git a/nongnu/packages/emacs.scm b/nongnu/packages/emacs.scm
index dad2f94..ee1616c 100644
--- a/nongnu/packages/emacs.scm
+++ b/nongnu/packages/emacs.scm
@@ -1,23 +1,8 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2020 Zhu Zihao <all_but_last@163.com>
 ;;; Copyright © 2022 Fredrik Salomonsson <plattfot@posteo.net>
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages emacs)
   #:use-module ((guix licenses) #:prefix license:)
diff --git a/nongnu/packages/emulators.scm b/nongnu/packages/emulators.scm
index 0ec22c0..5dade3b 100644
--- a/nongnu/packages/emulators.scm
+++ b/nongnu/packages/emulators.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages emulators)
   #:use-module (gnu packages backup)
diff --git a/nongnu/packages/firmware.scm b/nongnu/packages/firmware.scm
index 4b7784e..3008e5f 100644
--- a/nongnu/packages/firmware.scm
+++ b/nongnu/packages/firmware.scm
@@ -1,19 +1,7 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
 ;;; Copyright © 2022 Petr Hodina <phodina@protonmail.com>
 
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
 (define-module (nongnu packages firmware)
   #:use-module (gnu packages efi)
   #:use-module (gnu packages firmware)
diff --git a/nongnu/packages/fonts.scm b/nongnu/packages/fonts.scm
index 3e5ede7..b0689bb 100644
--- a/nongnu/packages/fonts.scm
+++ b/nongnu/packages/fonts.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021 Korytov Pavel <thexcloud@gmail.com>
 ;;; Copyright © 2021 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages fonts)
   #:use-module (ice-9 string-fun)
diff --git a/nongnu/packages/game-development.scm b/nongnu/packages/game-development.scm
index 16cd699..566cea2 100644
--- a/nongnu/packages/game-development.scm
+++ b/nongnu/packages/game-development.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019, 2020 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2022 Attila Lendvai <attila@lendvai.name>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages game-development)
   #:use-module (ice-9 match)
diff --git a/nongnu/packages/gog.scm b/nongnu/packages/gog.scm
index 6c2f023..76ff569 100644
--- a/nongnu/packages/gog.scm
+++ b/nongnu/packages/gog.scm
@@ -1,18 +1,6 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019, 2020 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2021-2022 Timotej Lazar <timotej.lazar@araneo.si>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages gog)
   #:use-module (gnu packages boost)
diff --git a/nongnu/packages/linux.scm b/nongnu/packages/linux.scm
index ab9c743..8847fd2 100644
--- a/nongnu/packages/linux.scm
+++ b/nongnu/packages/linux.scm
@@ -1,3 +1,4 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019, 2020 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2019 Giacomo Leidi <goodoldpaul@autistici.org>
@@ -17,20 +18,6 @@
 ;;; Copyright © 2022 Remco van 't Veer <remco@remworks.net>
 ;;; Copyright © 2022 Simen Endsjø <simendsjo@gmail.com>
 
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
 (define-module (nongnu packages linux)
   #:use-module (gnu packages)
   #:use-module (gnu packages base)
diff --git a/nongnu/packages/lisp.scm b/nongnu/packages/lisp.scm
index a6c6948..38c415a 100644
--- a/nongnu/packages/lisp.scm
+++ b/nongnu/packages/lisp.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages lisp)
   #:use-module (ice-9 match)
diff --git a/nongnu/packages/messaging.scm b/nongnu/packages/messaging.scm
index 2714e74..768a827 100644
--- a/nongnu/packages/messaging.scm
+++ b/nongnu/packages/messaging.scm
@@ -1,23 +1,7 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021, 2022 PantherX OS Team <team@pantherx.org>
 ;;; Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
 ;;; Copyright © 2022 Evgenii Lepikhin <johnlepikhin@gmail.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
-
 
 (define-module (nongnu packages messaging)
   #:use-module (gnu packages base)
diff --git a/nongnu/packages/mozilla.scm b/nongnu/packages/mozilla.scm
index 8bac88b..44b4ad2 100644
--- a/nongnu/packages/mozilla.scm
+++ b/nongnu/packages/mozilla.scm
@@ -1,4 +1,4 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2013, 2015 Andreas Enge <andreas@enge.fr>
 ;;; Copyright © 2013, 2014, 2015, 2016, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 Mark H Weaver <mhw@netris.org>
@@ -20,21 +20,6 @@
 ;;; Copyright © 2021 Brice Waegeneire <brice@waegenei.re>
 ;;; Copyright © 2021, 2022 John Kehayias <john.kehayias@protonmail.com>
 ;;; Copyright © 2022 Pierre Langlois <pierre.langlois@gmx.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages mozilla)
   #:use-module (guix build-system gnu)
diff --git a/nongnu/packages/ncurses.scm b/nongnu/packages/ncurses.scm
index 5c27ae9..dd979ad 100644
--- a/nongnu/packages/ncurses.scm
+++ b/nongnu/packages/ncurses.scm
@@ -1,4 +1,4 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2012, 2013, 2014, 2015, 2017, 2018, 2019 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014, 2016 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2015, 2017 Leo Famulari <leo@famulari.name>
@@ -9,21 +9,6 @@
 ;;; Copyright © 2018, 2019 Tobias Geerinckx-Rice <me@tobias.gr>
 ;;; Copyright © 2020 Michael Rohleder <mike@rohleder.de>
 ;;; Copyright © 2022 B. Wilson <x@wilsonb.com>
-;;;
-;;; This file is part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages ncurses)
   #:use-module (gnu packages)
diff --git a/nongnu/packages/nvidia.scm b/nongnu/packages/nvidia.scm
index 2846701..4c1aec0 100644
--- a/nongnu/packages/nvidia.scm
+++ b/nongnu/packages/nvidia.scm
@@ -1,4 +1,4 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Hebi Li <hebi@lihebi.com>
 ;;; Copyright © 2020 Malte Frank Gerdes <malte.f.gerdes@gmail.com>
 ;;; Copyright © 2020, 2021 Jean-Baptiste Volatier <jbv@pm.me>
@@ -7,21 +7,6 @@
 ;;; Copyright © 2022 Petr Hodina <phodina@protonmail.com>
 ;;; Copyright © 2022 Alexey Abramov <levenson@mmer.org>
 ;;; Copyright © 2022 Hilton Chain <hako@ultrarare.space>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages nvidia)
   #:use-module (guix packages)
diff --git a/nongnu/packages/playonlinux.scm b/nongnu/packages/playonlinux.scm
index 45f8340..8027c2d 100644
--- a/nongnu/packages/playonlinux.scm
+++ b/nongnu/packages/playonlinux.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages playonlinux)
   #:use-module ((guix licenses) :prefix license:)
diff --git a/nongnu/packages/printers.scm b/nongnu/packages/printers.scm
index 6a10da2..38a0f9c 100644
--- a/nongnu/packages/printers.scm
+++ b/nongnu/packages/printers.scm
@@ -1,22 +1,7 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2021 Petr Hodina <phodina@protonmail.com>
 ;;; Copyright © 2021 Kahka F
 ;;; Copyright © 2021 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages printers)
   #:use-module (gnu packages)
diff --git a/nongnu/packages/radio.scm b/nongnu/packages/radio.scm
index d697bdc..373d0eb 100644
--- a/nongnu/packages/radio.scm
+++ b/nongnu/packages/radio.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Guillaume Le Vaillant <glv@posteo.net>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages radio)
   #:use-module (gnu packages gcc)
diff --git a/nongnu/packages/scanner.scm b/nongnu/packages/scanner.scm
index 9a8b3cf..ab4772f 100644
--- a/nongnu/packages/scanner.scm
+++ b/nongnu/packages/scanner.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages scanner)
   #:use-module (ice-9 match)
diff --git a/nongnu/packages/steam-client.scm b/nongnu/packages/steam-client.scm
index 9a9ae5e..cddbe65 100644
--- a/nongnu/packages/steam-client.scm
+++ b/nongnu/packages/steam-client.scm
@@ -1,25 +1,10 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 pkill-9
 ;;; Copyright © 2020, 2021 ison <ison@airmail.cc>
 ;;; Copyright © 2021 pineapples
 ;;; Copyright © 2021 Jean-Baptiste Volatier <jbv@pm.me>
 ;;; Copyright © 2021 Kozo <kozodev@runbox.com>
 ;;; Copyright © 2021, 2022 John Kehayias <john.kehayias@protonmail.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 ;;; The steam script provided by this package may optionally be started as
 ;;; a shell instead of automatically launching Steam by setting the
diff --git a/nongnu/packages/version-control.scm b/nongnu/packages/version-control.scm
index ba26e2e..1948f7d 100644
--- a/nongnu/packages/version-control.scm
+++ b/nongnu/packages/version-control.scm
@@ -1,18 +1,6 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 dan <i@dan.games>
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages version-control)
   #:use-module (gnu packages base)
diff --git a/nongnu/packages/video.scm b/nongnu/packages/video.scm
index 0022232..72dec2a 100644
--- a/nongnu/packages/video.scm
+++ b/nongnu/packages/video.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Jelle Licht <jlicht@fsfe.org>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages video)
   #:use-module (gnu packages pkg-config)
diff --git a/nongnu/packages/vpn.scm b/nongnu/packages/vpn.scm
index 856a45b..c7be7e4 100644
--- a/nongnu/packages/vpn.scm
+++ b/nongnu/packages/vpn.scm
@@ -1,21 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Alexey Abramov <levenson@mmer.org>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
-
 
 (define-module (nongnu packages vpn)
   #:use-module (guix build utils)
diff --git a/nongnu/packages/wasm.scm b/nongnu/packages/wasm.scm
index 6aa8211..c09fde9 100644
--- a/nongnu/packages/wasm.scm
+++ b/nongnu/packages/wasm.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Pierre Langlois <pierre.langlois@gmx.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages wasm)
   #:use-module (guix base32)
diff --git a/nongnu/packages/wine.scm b/nongnu/packages/wine.scm
index 5378d2a..106f0a3 100644
--- a/nongnu/packages/wine.scm
+++ b/nongnu/packages/wine.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu packages wine)
   #:use-module (ice-9 match)
diff --git a/nongnu/services/nvidia.scm b/nongnu/services/nvidia.scm
index 7f72f90..985e12b 100644
--- a/nongnu/services/nvidia.scm
+++ b/nongnu/services/nvidia.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2022 Hilton Chain <hako@ultrarare.space>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu services nvidia)
   #:use-module (gnu packages)
diff --git a/nongnu/services/vpn.scm b/nongnu/services/vpn.scm
index d9f0bcc..71a15dc 100644
--- a/nongnu/services/vpn.scm
+++ b/nongnu/services/vpn.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Alexey Abramov <levenson@mmer.org>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nongnu services vpn)
   #:use-module (guix gexp)
diff --git a/nongnu/system/install.scm b/nongnu/system/install.scm
index 24bc6ec..100e278 100644
--- a/nongnu/system/install.scm
+++ b/nongnu/system/install.scm
@@ -1,19 +1,7 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2022 Jonathan Brielmaier <jonathan.brielmaier@web.de>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 ;; Generate a bootable image (e.g. for USB sticks, etc.) with:
 ;; $ guix system disk-image nongnu/system/install.scm
diff --git a/nongnu/system/linux-initrd.scm b/nongnu/system/linux-initrd.scm
index 5b29235..3bf54af 100644
--- a/nongnu/system/linux-initrd.scm
+++ b/nongnu/system/linux-initrd.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nongnu system linux-initrd)
   #:use-module (gnu system linux-initrd)
diff --git a/nonguix/build-system/binary.scm b/nonguix/build-system/binary.scm
index 4fed623..121162d 100644
--- a/nonguix/build-system/binary.scm
+++ b/nonguix/build-system/binary.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2021 Josselin Poiret <dev@jpoiret.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nonguix build-system binary)
   #:use-module (guix store)
diff --git a/nonguix/build/binary-build-system.scm b/nonguix/build/binary-build-system.scm
index 913ff44..087ef89 100644
--- a/nonguix/build/binary-build-system.scm
+++ b/nonguix/build/binary-build-system.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
 ;;; Copyright © 2022 Attila Lendvai <attila@lendvai.name>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nonguix build binary-build-system)
   #:use-module ((guix build gnu-build-system) #:prefix gnu:)
diff --git a/nonguix/build/utils.scm b/nonguix/build/utils.scm
index ab437f2..fd92a12 100644
--- a/nonguix/build/utils.scm
+++ b/nonguix/build/utils.scm
@@ -1,21 +1,6 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
 ;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nonguix build utils)
   #:use-module (ice-9 match)
diff --git a/nonguix/download.scm b/nonguix/download.scm
index 11087ff..0eb661a 100644
--- a/nonguix/download.scm
+++ b/nonguix/download.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Julien Lepiller <julien@lepiller.eu>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nonguix download)
   #:use-module (guix derivations)
diff --git a/nonguix/licenses.scm b/nonguix/licenses.scm
index 84d2346..a09452a 100644
--- a/nonguix/licenses.scm
+++ b/nonguix/licenses.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Alex Griffin <a@ajgrf.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nonguix licenses)
   #:use-module (guix licenses)
diff --git a/nonguix/modules.scm b/nonguix/modules.scm
index 24d4267..cd07d44 100644
--- a/nonguix/modules.scm
+++ b/nonguix/modules.scm
@@ -1,17 +1,5 @@
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2020 Alex Griffin <a@ajgrf.com>
-;;;
-;;; This program is free software: you can redistribute it and/or modify
-;;; it under the terms of the GNU 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 (define-module (nonguix modules)
   #:use-module (ice-9 match)
diff --git a/nonguix/utils.scm b/nonguix/utils.scm
index 7611a47..e9558a0 100644
--- a/nonguix/utils.scm
+++ b/nonguix/utils.scm
@@ -1,20 +1,5 @@
-;;; GNU Guix --- Functional package management for GNU
+;;; SPDX-License-Identifier: GPL-3.0-or-later
 ;;; Copyright © 2019 Pierre Neidhardt <mail@ambrevar.xyz>
-;;;
-;;; This file is not part of GNU Guix.
-;;;
-;;; GNU Guix is free software; you can redistribute it and/or modify it
-;;; under the terms of the GNU General Public License as published by
-;;; the Free Software Foundation; either version 3 of the License, or (at
-;;; your option) any later version.
-;;;
-;;; GNU Guix 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 General Public License for more details.
-;;;
-;;; You should have received a copy of the GNU General Public License
-;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
 
 (define-module (nonguix utils)
   #:use-module (srfi srfi-26)