diff --git a/files/rustc/busybox.toml b/files/rustc/busybox.toml
new file mode 100644
index 0000000..6a514dc
--- /dev/null
+++ b/files/rustc/busybox.toml
@@ -0,0 +1,5 @@
+[[files]]
+name = "rustc/busybox/busybox-1.32.1.tar.bz2"
+sha256 = "9d57c4bd33974140fd4111260468af22856f12f5b5ef7c70c8d9b75c712a0dee"
+source = "https://www.busybox.net/downloads/busybox-1.32.1.tar.bz2"
+license = "GPL-2.0"
diff --git a/files/rustc/ubuntu.toml b/files/rustc/ubuntu.toml
new file mode 100644
index 0000000..9a3d1ee
--- /dev/null
+++ b/files/rustc/ubuntu.toml
@@ -0,0 +1,5 @@
+[[files]]
+name = "rustc/ubuntu/ubuntu-base-22.04.2-base-armhf.tar.gz"
+sha256 = "244e2d2a95d8fa1481c67138012b6ffedd684fc37a53b890f8c29e6abf02e14d"
+source = "https://cdimage.ubuntu.com/ubuntu-base/releases/22.04/release/ubuntu-base-22.04.2-base-armhf.tar.gz"
+license = "https://canonical.com/legal/intellectual-property-policy"