diff --git a/pl/go/libfws/integration/vault.txt b/pl/go/libfws/integration/vault.txt
new file mode 100644
index 000000000..201dd731e
--- /dev/null
+++ b/pl/go/libfws/integration/vault.txt
@@ -0,0 +1,2 @@
+2024
+https://www.twilio.com/en-us/blog/manage-go-application-secrets-using-vault
diff --git a/pl/rs/tools/cargo/features/feature-flags.txt b/pl/rs/tools/cargo/features/feature-flags.txt
new file mode 100644
index 000000000..7d5a37a8b
--- /dev/null
+++ b/pl/rs/tools/cargo/features/feature-flags.txt
@@ -0,0 +1,2 @@
+2024
+https://betterprogramming.pub/compile-time-feature-flags-in-rust-why-how-when-129aada7d1b3