typo

flake.nix

@@ -92,7 +92,7 @@
           };
           networking.firewall.extraCommands = ''ip6tables -t nat -A POSTROUTING -s fd00::/80 ! -o docker0 -j MASQUERADE'';
 
-          cfg.bldScript = pkgs.writeShellScrip "build-vyos" ''
+          cfg.bldScript = pkgs.writeShellScript "build-vyos" ''
             cleanup() {
               rmdir "$root"
             }
@@ -108,8 +108,8 @@
 
             cp $bld_dir/build/$iso_name ${cfg.output}
             mapfile -t old_isos < <(ls ${cfg.output} | head -n -${builtins.toString cfg.keep})
-            for i in $\{old_isos[@]}; do
-              rm -r ${cfg.output}/$\{old_iso[$i]}
+            for i in ''${old_isos[@]}; do
+              rm -r ${cfg.output}/''${old_iso[$i]}
             done
           '';
           systemd = {