Add header to all typ files

1 files changed, 19 insertions, 0 deletions

diff --git a/charts/crosstalk-mathematical-model.typ b/charts/crosstalk-mathematical-model.typ
index 0319493..79c8e6f 100644
--- a/charts/crosstalk-mathematical-model.typ
+++ b/charts/crosstalk-mathematical-model.typ
@@ -1,3 +1,22 @@
+// SAME Analog Modular Ecosystem
+//
+// / SPDX-FileCopyrightText: 2026 Denis Chevalier <perso@denischevalier.fr>
+// / SPDX-License-Identifier: CC-BY-SA-4.0
+// / SPDX-License-Identifier: CERN-OHL-S-2.0+
+// / SPDX-License-Identifier: GPL-3.0-or-later
+//
+// The prose, explanatory text, rendered figures, tables, and mathematical
+// content of this specification are licensed under CC BY-SA 4.0. If a later
+// version of CC BY-SA is published, the author grants permission to distribute
+// this work under that later version as well.
+//
+// Hardware designs contained herein (schematics, PCB layouts, mechanical
+// drawings, and CAD models) are licensed under CERN-OHL-S-2.0+.
+//
+// All executable code, helper libraries (`lib/*`), metrology assertions, and
+// embedded verification scripts throughout the source documents are licensed
+// under the GNU General Public License v3.0 or later (GPL-3.0-or-later).
+
 #import "../lib/unify.typ": qty, unit
 #import "@preview/cetz:0.5.2"
 #import "@preview/cetz-plot:0.1.4": plot