diff --git a/nucleus/Cargo.toml b/nucleus/Cargo.toml
index 62d4681..3946ab3 100644
--- a/nucleus/Cargo.toml
+++ b/nucleus/Cargo.toml
@@ -35,4 +35,7 @@ bitflags = "1.2"
 cfg-if = "1.0"
 snafu = { version = "0.7.0-beta.0", default-features = false }
 shrinkwraprs = { version = "0.3", default-features = false }
-dtb = "0.2"
+dtb = "0.2" # Dec 2019 by Simon Prikhodko
+# Alternatives to dtb to look at:
+#device_tree = "1.1.0" # Jun 2016 by Marc Brinkmann
+#fdt-rs = "0.4.2" # Aug 2020 by Sean Wilson