lock: update

code here wants to do the same thing as unstable-from-source overlay

lock.nix

@@ -4,11 +4,11 @@
     sha256 = "1rq8mrlmbzpcbv9ys0x88alw30ks70jlmvnfr2j8v830yy5wvw7h";
   };
   nixpkgs = {
-    revision = "1c6e20d41d6a9c1d737945962160e8571df55daa";
-    sha256 = "1cyck9dycldzj5p8p2bz0rhzmdgm75zvmg9afhblm4k9vlr350qq";
+    revision = "edf04b75c13c2ac0e54df5ec5c543e300f76f1c9";
+    sha256 = "0zffg0m7rhdpk94df578wln5lw3plamadac86cd7cfjcb1n13xmm";
   };
   cosmic-modules = {
-    revision = "86e08fbc79f33f98c00097d6dcabe0e17c20faae";
-    sha256 = "1zxv3lx813wvy4d036w5lg34qf51idcbd49fnllfy7vxz2nhbdp1";
+    revision = "c9667d79481c62d9b204f8cb13d043b9b1f5dc05";
+    sha256 = "1q07p4zicp1bjxwn3n6w48045kd5dabkffzwxydjgjfgrsdkz1f0";
   };
 }

pkgs/overlays/cosmic-packages.nix

@@ -20,12 +20,11 @@ let
   };
 
   # Initialize pinned nixpkgs
-  futureNixpkgs = import futureNixpkgsSrc {
-    localSystem = self.stdenv.buildPlatform;
-    config = self.config;
-  } // (if self.stdenv.buildPlatform == self.stdenv.hostPlatform then {} else {
-    crossSystem = self.stdenv.hostPlatform;
+  futureNixpkgs = let
+    extended = self.extend (import ./unstable-from-source.nix {
+      unstableSource = futureNixpkgsSrc;
     });
+  in extended.unstable;
 in
 
 import "${nixos-cosmic}/pkgs" {

pkgs/overlays/unstable-from-source.nix

@@ -9,6 +9,8 @@ let
   sanitizePlatform = platformConfig: self.lib.removeAttrs platformConfig [
     "emulator"
     "emulatorAvailable"
+    "darwinSdkVersion"
+    "darwinMinVersion"
   ];
 
   unstablePkgsForNixpkgs = nixpkgs: import unstableSource {