diff --git a/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json b/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json
index 628dc09b3dec..1e4abc9c9379 100644
--- a/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json
+++ b/pkgs/by-name/ap/apple-sdk/metadata/apple-oss-lockfile.json
@@ -888,5 +888,183 @@
       "hash": "sha256-M1XWippH55VUJu4aosRFX8j9aOm/PONYVjPZOPufD80=",
       "version": "7195.101.1"
     }
+  },
+  "12.3": {
+    "CarbonHeaders": {
+      "hash": "sha256-nIPXnLr21yVnpBhx9K5q3l/nPARA6JL/dED08MeyhP8=",
+      "version": "18.1"
+    },
+    "CommonCrypto": {
+      "hash": "sha256-HTGBUE6vHjS80CFTiIQ8F17m8Yd2ZRHccvFu2CA2P9U=",
+      "version": "60191.100.1"
+    },
+    "IOAudioFamily": {
+      "hash": "sha256-CuBFZeX2JTKIab2xpp+Yvn66bCl4+aKOv9TvzJef20c=",
+      "version": "340.2"
+    },
+    "IOBDStorageFamily": {
+      "hash": "sha256-UgLMsQBe1QLzlbScmPmASBN7VH4YBmNOUX2CEDezjmE=",
+      "version": "22"
+    },
+    "IOCDStorageFamily": {
+      "hash": "sha256-p/2qM5zjXFDRb/DISpEHxQEdvmuLlRGt/Ygc71Yu2rI=",
+      "version": "61"
+    },
+    "IODVDStorageFamily": {
+      "hash": "sha256-1Sa8aZBGNtqJBNHva+YXxET6Wcdm2PgVrTzYT/8qrN4=",
+      "version": "43"
+    },
+    "IOFWDVComponents": {
+      "hash": "sha256-WkfkWnzRupEh20U7vjsTta89clhus6GTkOpXQWXw/bM=",
+      "version": "208"
+    },
+    "IOFireWireAVC": {
+      "hash": "sha256-ruAomp5Lv7zuPu9vHsNKoPtDvD1AIrRARsPMpcx/fh0=",
+      "version": "430"
+    },
+    "IOFireWireFamily": {
+      "hash": "sha256-W0KOF4hkA7kFOnL1ThAeFU/YlhFVqoqk9uzGjcBppX8=",
+      "version": "487"
+    },
+    "IOFireWireSBP2": {
+      "hash": "sha256-bItnRQIaGUxMyiU0q+4N8e5+jYiDEOUPmsrKhBFXvok=",
+      "version": "445"
+    },
+    "IOFireWireSerialBusProtocolTransport": {
+      "hash": "sha256-P7egeaD9SSa+YyrIRzM44gILKbIL7vezXK3M6q3MBOI=",
+      "version": "260"
+    },
+    "IOGraphics": {
+      "hash": "sha256-lzxBrPLlF01+2jFKRJtSnwpf0r05C0H3tM7Q0N1RUPA=",
+      "version": "594"
+    },
+    "IOHIDFamily": {
+      "hash": "sha256-EQQHAS8WKUoTxZscixylc2ZMoD4UYBlHRUj2O7Ikgac=",
+      "version": "1787.100.13"
+    },
+    "IOKitUser": {
+      "hash": "sha256-Cdfa/YXM0W4O15femcU0G1Xcpbm+iADWIBWIdzoeuTE=",
+      "version": "1955.100.5"
+    },
+    "IONetworkingFamily": {
+      "hash": "sha256-odUZJQq8lb3UYk7F8dBi1Hds00M+kwdlyGwZkVkSwTg=",
+      "version": "160.100.2"
+    },
+    "IOSerialFamily": {
+      "hash": "sha256-wVS4QTx6MBOS0VrwyCZ3s5Usezwaf8rWzmNnfdDTXTU=",
+      "version": "93"
+    },
+    "IOStorageFamily": {
+      "hash": "sha256-2b32qe1z7Z+Od1dVlAGdM142DdF8cBaRC+ElysSuAQ4=",
+      "version": "290.100.6"
+    },
+    "IOUSBFamily": {
+      "hash": "sha256-Z0E3TfKP49toYo1Fo9kElRap8CZ+mVDHy5RIexgJTpA=",
+      "version": "630.4.5"
+    },
+    "Libc": {
+      "hash": "sha256-obalDxsbE+7gm7YwznUbfxL7MCriamQFP3DrXleNwU4=",
+      "version": "1507.100.9"
+    },
+    "Libinfo": {
+      "hash": "sha256-OjnnSHEcifcWarVyXiHvYg/9jbCQy5/lzaq6fJRriy0=",
+      "version": "554"
+    },
+    "Libm": {
+      "hash": "sha256-p4BndAag9d0XSMYWQ+c4myGv5qXbKx5E1VghudSbpTk=",
+      "version": "2026"
+    },
+    "Libnotify": {
+      "hash": "sha256-JXG0kHEdoIs6krVZ4+KsRVES4AuNjnQi8qF+XKSp5jE=",
+      "version": "301"
+    },
+    "Librpcsvc": {
+      "hash": "sha256-8e8E9TkRTAep3/miyqhF/mSkNdlym12W+AVhXF94+Bg=",
+      "version": "26"
+    },
+    "Libsystem": {
+      "hash": "sha256-mPPAxo67wWLtemO+PuKg1Ui0zKEfjnYVj/qX1/0kNBs=",
+      "version": "1311.100.3"
+    },
+    "OpenDirectory": {
+      "hash": "sha256-6fSl8PasCZSBfe0ftaePcBuSEO3syb6kK+mfDI6iR7A=",
+      "version": "146"
+    },
+    "Security": {
+      "hash": "sha256-cIqfXcfQOZonxaKndH80xC5YmmveHw+TxHOxqvc9u8I=",
+      "version": "60158.100.133"
+    },
+    "architecture": {
+      "hash": "sha256-PRNUrhzSOrwmxSPkKmV0LV7yEIik65sdkfKdBqcwFhU=",
+      "version": "280.100.2"
+    },
+    "configd": {
+      "hash": "sha256-X34mjXdil4HeBLyqY4tyBWdmpjsOFTJDdDE81UQf708=",
+      "version": "1163.100.19.0.2"
+    },
+    "copyfile": {
+      "hash": "sha256-3/zI3j/m9b13hebjCsOLry3Mf8ADdWJgrtQOdD0huG0=",
+      "version": "180.100.3"
+    },
+    "dtrace": {
+      "hash": "sha256-q8H6slCN4RwJ5TxC5s3og6cIbjALySP5ODfVw6a/a+M=",
+      "version": "375"
+    },
+    "dyld": {
+      "hash": "sha256-v1kk/Z3eI2sufNm2rx3FRbA/f9BeKJ3t9i9W7tTksXg=",
+      "version": "955"
+    },
+    "eap8021x": {
+      "hash": "sha256-SayP1d2KWoRShykBA/NrQCuRnPoxlTiaLwifoqm0Gkg=",
+      "version": "315.100.2"
+    },
+    "hfs": {
+      "hash": "sha256-q1yOIei98oudGAoBMNPRTV5EOYpXFL7iYmlCYsKsG0o=",
+      "version": "583.100.10"
+    },
+    "launchd": {
+      "hash": "sha256-8mW9bnuHmRXCx9py8Wy28C5b2QPICW0rlAps5njYa00=",
+      "version": "842.1.4"
+    },
+    "libclosure": {
+      "hash": "sha256-Ez75a0m+fJas7mGqFeDjjpc7sFDnyirRbtLMTYQDVxw=",
+      "version": "79.1"
+    },
+    "libdispatch": {
+      "hash": "sha256-/VbSUtnWyToWOUyAAg/3wImbJ2w5k1tbJkt827x2lIE=",
+      "version": "1325.100.36"
+    },
+    "libmalloc": {
+      "hash": "sha256-tyYce5nk0N923MbzoGzkGqunoKwArbTiZl8PCppYpso=",
+      "version": "374.100.5"
+    },
+    "libplatform": {
+      "hash": "sha256-JUD2NdS310OhZ0F8gnOvoD8AgEtWRtPahKDw5iE2QJU=",
+      "version": "273.100.5"
+    },
+    "libpthread": {
+      "hash": "sha256-al8QumtH7/D04oJ4LUSYW+6OdX0Ko3S3rwYU53n9/54=",
+      "version": "486.100.11"
+    },
+    "mDNSResponder": {
+      "hash": "sha256-hsV0VYTPoO5YpaxrUXpXFy97LxlERzrQT0FRfCMOwic=",
+      "version": "1557.101.2"
+    },
+    "objc4": {
+      "hash": "sha256-MKXnfZL46VtmAQMolqd7ATF9fYjCNstapGQfcH4uVwo=",
+      "version": "841.13"
+    },
+    "ppp": {
+      "hash": "sha256-YyCE19T3rcM1G5jdXuYXuBXblJgR/nelvjpq+9maMhw=",
+      "version": "884"
+    },
+    "removefile": {
+      "hash": "sha256-xF1VtTUhoiGsFQsvuFnFYemwiCdsKeriFJv51vRLqmw=",
+      "version": "60"
+    },
+    "xnu": {
+      "hash": "sha256-bfFmDfRBSvoWMdQYVstsJRbcq+15lDjVFqk+0XYWpy8=",
+      "version": "8020.101.4"
+    }
   }
 }
diff --git a/pkgs/by-name/ap/apple-sdk/metadata/versions.json b/pkgs/by-name/ap/apple-sdk/metadata/versions.json
index 2a3565afe774..24e4f93a8908 100644
--- a/pkgs/by-name/ap/apple-sdk/metadata/versions.json
+++ b/pkgs/by-name/ap/apple-sdk/metadata/versions.json
@@ -23,5 +23,10 @@
     "url": "https://swcdn.apple.com/content/downloads/02/62/071-54303-A_EU2CL1YVT7/943i95dpeyi2ghlnj2mgyq3t202t5gf18b/CLTools_macOSNMOS_SDK.pkg",
     "version": "11.3",
     "hash": "sha256-/go8utcx3jprf6c8V/DUbXwsmNYSFchOAai1OaJs3Bg="
+  },
+  "12": {
+    "url": "https://swcdn.apple.com/content/downloads/24/42/002-83793-A_74JRE8GVAT/rlnkct919wgc5c0pjq986z5bb9h62uvni2/CLTools_macOSNMOS_SDK.pkg",
+    "version": "12.3",
+    "hash": "sha256-qG21ssNUmkqxPLTXALGP2N/RBHu8NMlI1dWvGlV+Wm8="
   }
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 12a2d549a3f8..39a83bc47eeb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -23747,6 +23747,7 @@ with pkgs;
   apple-sdk_10_14 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.14"; };
   apple-sdk_10_15 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "10.15"; };
   apple-sdk_11 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "11"; };
+  apple-sdk_12 = callPackage ../by-name/ap/apple-sdk/package.nix { darwinSdkMajorVersion = "12"; };
 
   darwinMinVersionHook =
     deploymentTarget: