diff --git a/codecs/mozjpeg/flake.nix b/codecs/mozjpeg/flake.nix
index b751710a..0d155164 100644
--- a/codecs/mozjpeg/flake.nix
+++ b/codecs/mozjpeg/flake.nix
@@ -28,13 +28,15 @@
           base = { };
         };
 
+        src = lib.sources.sourceByRegex ./. [
+          "Makefile"
+          "enc(/.+)?"
+        ];
+
         builder = variantName: opts: {
           mozjpeg-squoosh = buildSquooshCppCodec {
             name = "mozjpeg-squoosh";
-            src = lib.sources.sourceByRegex ./. [
-              "Makefile"
-              "enc(/.+)?"
-            ];
+            inherit src;
             MOZJPEG = self.packages.${system}."mozjpeg-${variantName}";
 
             dontConfigure = true;
diff --git a/codecs/resize/flake.nix b/codecs/resize/flake.nix
index 89ed870e..722bd4b2 100644
--- a/codecs/resize/flake.nix
+++ b/codecs/resize/flake.nix
@@ -21,17 +21,19 @@
           fenix = fenix.packages.${system};
         };
         squooshHelpers = callPackage (import ../../nix/squoosh-helpers) { };
-        inherit (squooshHelpers) mkRepoBinaryUpdater;
+        inherit (squooshHelpers) mkRepoBinaryUpdater forAllVariants;
+
+        variants = {
+          base = { };
+        };
 
         src = lib.sources.sourceByRegex ./. [
           "Cargo.*"
-          ".*\.rs"
-          "src"
+          "build\.rs"
+          "src(/.+)?"
         ];
-      in
-      mkRepoBinaryUpdater {
-        packages = rec {
-          default = resize-squoosh;
+
+        builder = variantName: opts: {
           resize-squoosh = buildSquooshRustCodec {
             name = "resize-squoosh";
             inherit src;
@@ -43,6 +45,13 @@
             };
           };
         };
+
+        packageVariants = forAllVariants { inherit builder variants; };
+      in
+      mkRepoBinaryUpdater {
+        packages = packageVariants // {
+          default = packageVariants."resize-squoosh-base";
+        };
       }
     );
 }
diff --git a/codecs/rotate/flake.nix b/codecs/rotate/flake.nix
index 3ecdb721..98038aad 100644
--- a/codecs/rotate/flake.nix
+++ b/codecs/rotate/flake.nix
@@ -21,16 +21,18 @@
           fenix = fenix.packages.${system};
         };
         squooshHelpers = callPackage (import ../../nix/squoosh-helpers) { };
-        inherit (squooshHelpers) mkRepoBinaryUpdater;
+        inherit (squooshHelpers) mkRepoBinaryUpdater forAllVariants;
+
+        variants = {
+          base = { };
+        };
 
         src = lib.sources.sourceByRegex ./. [
           "Cargo\.*"
           ".*\.rs"
         ];
-      in
-      mkRepoBinaryUpdater {
-        packages = rec {
-          default = rotate-squoosh;
+
+        builder = variantName: opts: {
           rotate-squoosh = buildSquooshRustCodec {
             name = "rotate-squoosh";
             inherit src;
@@ -40,6 +42,13 @@
             wasmBindgen = null;
           };
         };
+
+        packageVariants = forAllVariants { inherit builder variants; };
+      in
+      mkRepoBinaryUpdater {
+        packages = packageVariants // {
+          default = packageVariants."rotate-squoosh-base";
+        };
       }
     );
 }
diff --git a/codecs/webp/flake.nix b/codecs/webp/flake.nix
index cf036d5c..ce875e30 100644
--- a/codecs/webp/flake.nix
+++ b/codecs/webp/flake.nix
@@ -32,17 +32,19 @@
           };
         };
 
+        src = lib.sources.sourceByRegex ./. [
+          "Makefile"
+          "enc(/.+)?"
+          "dec(/.+)?"
+        ];
+
         builder =
           variantName:
           { simd }:
           {
             "webp-squoosh" = buildSquooshCppCodec {
               name = "webp-squoosh-${variantName}";
-              src = lib.sources.sourceByRegex ./. [
-                "Makefile"
-                "enc(/.+)?"
-                "dec(/.+)?"
-              ];
+              inherit src;
               nativeBuildInputs = [
                 pkgs.emscripten
                 self.packages.${system}."webp-${variantName}"