diff --git a/pkgs/applications/misc/monitorcontrol/default.nix b/pkgs/applications/misc/monitorcontrol/default.nix
index 6c3a1ccec34e..b5a6935958e2 100644
--- a/pkgs/applications/misc/monitorcontrol/default.nix
+++ b/pkgs/applications/misc/monitorcontrol/default.nix
@@ -14,14 +14,6 @@ stdenv.mkDerivation rec {
   };
 
   # MonitorControl.${version}.dmg is APFS formatted, unpack with 7zz
-  unpackCmd = ''
-    runHook preUnpack
-
-    7zz x $src
-
-    runHook postUnpack
-  '';
-
   nativeBuildInputs = [ _7zz ];
 
   sourceRoot = "MonitorControl.app";
diff --git a/pkgs/by-name/no/nosql-workbench/package.nix b/pkgs/by-name/no/nosql-workbench/package.nix
index 9fb744fa6570..1b96328b211b 100644
--- a/pkgs/by-name/no/nosql-workbench/package.nix
+++ b/pkgs/by-name/no/nosql-workbench/package.nix
@@ -39,20 +39,12 @@ if stdenv.isDarwin then stdenv.mkDerivation {
 
   sourceRoot = ".";
 
-  nativeBuildInputs = [ _7zz ];
-
-  buildInputs = [ jdk21 ];
-
   # DMG file is using APFS which is unsupported by "undmg".
   # Instead, use "7zz" to extract the contents.
   # "undmg" issue: https://github.com/matthewbauer/undmg/issues/4
-  unpackCmd = ''
-    runHook preUnpack
+  nativeBuildInputs = [ _7zz ];
 
-    7zz x $curSrc
-
-    runHook postUnpack
-  '';
+  buildInputs = [ jdk21 ];
 
   installPhase = ''
     runHook preInstall
diff --git a/pkgs/development/libraries/science/math/mkl/default.nix b/pkgs/development/libraries/science/math/mkl/default.nix
index f4b168b37fe2..90e6c05da77d 100644
--- a/pkgs/development/libraries/science/math/mkl/default.nix
+++ b/pkgs/development/libraries/science/math/mkl/default.nix
@@ -68,9 +68,7 @@ in stdenvNoCC.mkDerivation ({
 
   dontUnpack = stdenvNoCC.isLinux;
 
-  unpackPhase = if stdenvNoCC.isDarwin then ''
-    7zz x $src
-  '' else null;
+  sourceRoot = if stdenvNoCC.isDarwin then "." else null;
 
   nativeBuildInputs = [ validatePkgConfig ] ++ (if stdenvNoCC.isDarwin
     then
diff --git a/pkgs/os-specific/darwin/airbuddy/default.nix b/pkgs/os-specific/darwin/airbuddy/default.nix
index 374089c5aa1f..19c1ada4408a 100644
--- a/pkgs/os-specific/darwin/airbuddy/default.nix
+++ b/pkgs/os-specific/darwin/airbuddy/default.nix
@@ -19,16 +19,8 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   dontBuild = true;
   dontFixup = true;
 
-  nativeBuildInputs = [ _7zz ];
-
   # AirBuddy.dmg is APFS formatted, unpack with 7zz
-  unpackCmd = ''
-    runHook preUnpack
-
-    7zz x $src
-
-    runHook postUnpack
-  '';
+  nativeBuildInputs = [ _7zz ];
 
   sourceRoot = "AirBuddy.app";
 
diff --git a/pkgs/os-specific/darwin/aldente/default.nix b/pkgs/os-specific/darwin/aldente/default.nix
index e585d8877803..dd81cbece335 100644
--- a/pkgs/os-specific/darwin/aldente/default.nix
+++ b/pkgs/os-specific/darwin/aldente/default.nix
@@ -16,16 +16,8 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   dontBuild = true;
   dontFixup = true;
 
-  nativeBuildInputs = [ _7zz ];
-
   # AlDente.dmg is APFS formatted, unpack with 7zz
-  unpackCmd = ''
-    runHook preUnpack
-
-    7zz x $src
-
-    runHook postUnpack
-  '';
+  nativeBuildInputs = [ _7zz ];
 
   sourceRoot = "AlDente.app";
 
diff --git a/pkgs/tools/inputmethods/unnaturalscrollwheels/default.nix b/pkgs/tools/inputmethods/unnaturalscrollwheels/default.nix
index b28b7ad784f8..6337b0d7f4f5 100644
--- a/pkgs/tools/inputmethods/unnaturalscrollwheels/default.nix
+++ b/pkgs/tools/inputmethods/unnaturalscrollwheels/default.nix
@@ -15,7 +15,6 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
   # APFS format is unsupported by undmg
   nativeBuildInputs = [ _7zz ];
-  unpackCmd = "7zz x $curSrc";
 
   installPhase = ''
     runHook preInstall
diff --git a/pkgs/tools/misc/archi/default.nix b/pkgs/tools/misc/archi/default.nix
index e5850f8871e7..23c5372e5eef 100644
--- a/pkgs/tools/misc/archi/default.nix
+++ b/pkgs/tools/misc/archi/default.nix
@@ -42,9 +42,7 @@ stdenv.mkDerivation rec {
     autoPatchelfHook
   ];
 
-  unpackPhase = if stdenv.hostPlatform.isDarwin then ''
-    7zz x $src
-  '' else null;
+  sourceRoot = if stdenv.isDarwin then "." else null;
 
   installPhase =
     if stdenv.hostPlatform.system == "x86_64-linux" then