Propagate --override-input's to nix run .#microvm-update-*

packages.nix

@@ -8,8 +8,12 @@ let
       hostConf.ip4 or hostConf.ip6;
 
   # all the input flakes for `nix copy` to the build machine,
-  # allowing --override-input
+  # to be available for --override-input
   inputPaths = lib.escapeShellArgs (builtins.attrValues inputs);
+  overrideInputsArgs = lib.concatStringsSep " " (builtins.attrValues (lib.mapAttrs
+    (name: value: "--override-input ${name} ${value}")
+    (lib.filterAttrs (name: value: name != "self") inputs)
+  ));
 in
 lib.attrsets.mapAttrs
   (system: pkgs:
@@ -168,6 +172,7 @@ lib.attrsets.mapAttrs
             [ -e current ] && cp --no-dereference current old
 
             nix build -L --accept-flake-config -o current \
+              ${overrideInputsArgs} \
               ${self}#nixosConfigurations.${name}.config.microvm.declaredRunner
             echo '${selfRef}' > flake