diff --git a/build-all b/build-all
index b282597..43a28c5 100755
--- a/build-all
+++ b/build-all
@@ -39,17 +39,30 @@ build() { : \
 
 build_simple() { : \
  && for f in simple/*.Dockerfile \
-    ;do : \
-     && t="${f%.*}" t=${t##*/} \
+    ;do t="${f%.*}" t=${t##*/} \
      && announce '(simple) packaging' "$t" \
      && podman build -t "$t" -f "$f" simple \
      || return \
     ;done \
  ;}
 
+prep() { : \
+ && [ "$(whoami)" != podman ] \
+ || { : \
+     && mkdir -p ~/.config/containers/ \
+     && printf '%s\n' >~/.config/containers/storage.conf \
+        '[storage]' 'driver = "overlay"' 'runroot = "$HOME/junk"' \
+        'graphroot = "$HOME/junk"' 'rootless_storage_path = "$HOME/junk"' \
+        '[storage.options]' 'additionalimagestores = [' ']' \
+        '[storage.options.overlay]' 'mountopt = "nodev"' \
+        '[storage.options.thinpool]' \
+     ;} \
+ ;}
+
 : \
  && me="$(readlink -f "$0")" && cd "${me%/*}" && { [ -d out ] || mkdir out ;} \
-;: \
+ && prep \
+\
 `# phase 1` \
  && build   notwa-util          \
 `# phase 2` \