use less restrictive licence

This is necessary to allow the solutions to be kept private.

4 files changed, 21 insertions, 2 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 639a128..485f445 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,3 +1,10 @@
+# GitLab Continuous Integration and Deployment configuration for the Markdown
+# course website example, using Nix for the build and publishing through GitLab
+# Pages.
+#
+# Author: Pacien TRAN-GIRARD
+# Licence: CC BY-NC 4.0
+
 stages:
   - build
   - publish
diff --git a/filters/strip-solutions.lua b/filters/strip-solutions.lua
index 2bba42f..24221d4 100644
--- a/filters/strip-solutions.lua
+++ b/filters/strip-solutions.lua
@@ -3,7 +3,7 @@
 -- Useful to generate public and private handouts from the same source.
 --
 -- Author: Pacien TRAN-GIRARD
--- Licence: EUPL-1.2
+-- Licence: CC BY-NC 4.0
 
 strip_solutions = os.getenv('STRIP_SOLUTIONS')
 
diff --git a/flake.nix b/flake.nix
index 034d857..fb63880 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,7 +1,7 @@
 # Build environment and recipe for the Markdown course website example.
 #
 # Author: Pacien TRAN-GIRARD
-# Licence: EUPL-1.2
+# Licence: CC BY-NC 4.0
 
 {
   inputs = {
diff --git a/index.md b/index.md
index 14a5633..83ccdbd 100644
--- a/index.md
+++ b/index.md
@@ -68,3 +68,15 @@ Pages.
 - [Quarto (reference)](https://quarto.org/docs/reference/index.html)
 - [Nix guides](https://nixos.org/learn.html)
 - [GitLab CI configuration reference](https://docs.gitlab.com/ee/ci/yaml/)
+
+
+## Licence
+
+The code of this example is licensed under the [CC BY-NC 4.0].
+
+It can be used as a template for course websites, without requiring the
+publication of the added original content (which can may contain exercise
+solutions not meant to be shared publicly).
+
+[CC BY-NC 4.0]: https://creativecommons.org/licenses/by-nc/4.0/
+