update flakes + create script

update.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+descend() {
+	for f in $1/*; do
+		if [[ -d $f ]]; then
+			echo descending into $f...
+			descend $f
+		fi
+	done
+	if [[ -d $1 ]]; then
+		echo updating $1...
+		nix flake update
+		sleep 5 # prevent api thrashing
+	fi
+}
+
+descend flakes
+nix flake update