nix: Make nix the root

Which means now I'll have to think about real prefixes in commit names.

unprocessed/config/polybar/todo

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+CALDIR="$HOME/.vdirsyncer/currentCalendars"
+
+function status() {
+    ls "$CALDIR" | while read account
+    do
+        displayname="$(cat "$CALDIR/$account/displayname")"
+        color="$(cat "$CALDIR/$account/color")"
+        nb="$(todo list "$displayname" | grep -v "^$" | wc -l)"
+
+        if [ $nb -gt 0 ]
+        then
+            echo -n " %{F$color}$nb%{F-}"
+        fi
+    done
+    # Newline to tell polybar to update in any case
+    echo
+}
+
+status