diff --git a/local/recipes/libs/libdisplay-info/recipe.toml b/local/recipes/libs/libdisplay-info/recipe.toml
index 0ca39916c6..69ecd8453b 100644
--- a/local/recipes/libs/libdisplay-info/recipe.toml
+++ b/local/recipes/libs/libdisplay-info/recipe.toml
@@ -1,4 +1,7 @@
 [source]
+# Vendored local fork of an UPSTREAM project (not first-party Red Bear code).
+# Upstream: https://gitlab.freedesktop.org/emersion/libdisplay-info
+# Snapshot: libdisplay-info 0.4.0 (meson.build version)
 path = "source"
 
 [build]
diff --git a/local/recipes/libs/libepoxy/recipe.toml b/local/recipes/libs/libepoxy/recipe.toml
index d5dc911599..f672bb9f7b 100644
--- a/local/recipes/libs/libepoxy/recipe.toml
+++ b/local/recipes/libs/libepoxy/recipe.toml
@@ -1,4 +1,7 @@
 [source]
+# Vendored local fork of an UPSTREAM project (not first-party Red Bear code).
+# Upstream: https://github.com/anholt/libepoxy
+# Snapshot: libepoxy 1.5.10 (meson.build version)
 path = "source"
 
 [build]
diff --git a/local/recipes/libs/libxcvt/recipe.toml b/local/recipes/libs/libxcvt/recipe.toml
index 8d2a6eed36..4568ce7fa2 100644
--- a/local/recipes/libs/libxcvt/recipe.toml
+++ b/local/recipes/libs/libxcvt/recipe.toml
@@ -1,4 +1,7 @@
 [source]
+# Vendored local fork of an UPSTREAM project (not first-party Red Bear code).
+# Upstream: https://gitlab.freedesktop.org/xorg/lib/libxcvt
+# Snapshot: libxcvt 0.1.3 (meson.build version)
 path = "source"
 
 [build]