add silly little scripts

scripts/niss-misc/nd/nd

@@ -0,0 +1,19 @@
+#!/usr/bin/env execlineb
+
+importas -D /bin/bash default_shell SHELL
+
+elgetopt s:
+importas -D $default_shell shell ELGETOPT_s
+elgetpositionals
+
+getcwd -E cwd
+backtick -D "" -E nixdir { find-parent -d flake.nix }
+ifelse { test $nixdir = "" } {
+  foreground { echo "flake.nix not found in parents of ${cwd}" }
+  exit 1
+}
+
+cd $nixdir
+nix develop --no-warn-dirty $@ -c execlineb -c "cd ${cwd} ${shell}"
+
+# vim: set ft=execline :