=== modified file 'zsh-functions/confz_containers_init'
--- old/zsh-functions/confz_containers_init	2022-06-22 23:40:17 +0000
+++ new/zsh-functions/confz_containers_init	2022-06-22 23:38:39 +0000
@@ -982,7 +982,8 @@
 }
 
 confz_container_nix_image_installed_check() {
-	checkvars containers_dir root user filename uid gid image_name svscan_dir
+	checkvars containers_dir root user filename uid gid
+	checkvars filename image_name svscan_dir root
 
 	require fs_r flags=r filename=$vars[root]/${vars[filename]%.tar.*}
 
@@ -994,7 +995,6 @@
 }
 
 confz_container_nix_image_installed_do() {
-	local download_dir=$vars[containers_dir]/download-cache
 	s6-setuidgid $vars[user] \
 		tar -xpC "$vars[root]" -f "$download_dir/$vars[filename]" \
 		|| die "Unpacking ${(qqq)vars[filename]} failed"