diff --git a/.xpkgindex/openkal-compat.json b/.xpkgindex/openkal-compat.json
index 7b956994..5e33a482 100644
--- a/.xpkgindex/openkal-compat.json
+++ b/.xpkgindex/openkal-compat.json
@@ -7,7 +7,7 @@
     "protobuf-protoc": "runs a host code generator",
     "sycl-runtime": "a vendor runtime distributed as binaries for the platform C runtime"
   },
-  "measured": "2026-09-23",
+  "measured": "2026-10-25",
   "members": {
     "archive": {
       "packages": [
@@ -20,10 +20,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -36,10 +44,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -52,10 +68,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -68,10 +92,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -84,10 +116,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -100,10 +140,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -116,10 +164,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -132,10 +188,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -148,10 +212,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -164,10 +236,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "diagnostic": "/home/runner/work/mcpp-index/mcpp-index/mcpp-2026.10.24.1-linux-x86_64/xpkgs/chriskohlhoff-x-asio/1.38.1/asio-asio-1-38-1/include/asio/detail/config.hpp:899:11: fatal error: 'linux/version.h' file not found",
+          "status": "fails"
+        },
         "x86_64-linux-gnu": {
           "declared": "not-portable",
           "declared_reason": "asio's detail/config.hpp:899 includes <linux/version.h> whenever __linux__ is defined, OUTSIDE every ASIO_DISABLE_* guard, so no configuration macro prevents it. openkal runs on the Linux kernel, so __linux__ is correct; the uapi headers glibc's userspace installs beside it are not part of what openkal presents.",
-          "diagnostic": "/home/runner/work/mcpp-index/mcpp-index/mcpp-2026.9.21.3-linux-x86_64/registry/data/xpkgs/chriskohlhoff-x-asio/1.38.1/asio-asio-1-38-1/include/asio/detail/config.hpp:899:11: fatal error: 'linux/version.h' file not found",
+          "diagnostic": "/home/runner/work/mcpp-index/mcpp-index/mcpp-2026.10.24.1-linux-x86_64/xpkgs/chriskohlhoff-x-asio/1.38.1/asio-asio-1-38-1/include/asio/detail/config.hpp:899:11: fatal error: 'linux/version.h' file not found",
+          "status": "fails"
+        },
+        "x86_64-linux-musl": {
+          "diagnostic": "/home/runner/work/mcpp-index/mcpp-index/mcpp-2026.10.24.1-linux-x86_64/xpkgs/chriskohlhoff-x-asio/1.38.1/asio-asio-1-38-1/include/asio/detail/config.hpp:899:11: fatal error: 'linux/version.h' file not found",
           "status": "fails"
         },
         "x86_64-windows-musl": {
@@ -182,12 +262,20 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "diagnostic": "ld.lld: error: /home/runner/work/mcpp-index/mcpp-index/tests/openkal-work/curl/.mcpp/.xlings/data/xpkgs/compat-x-openssl/3.5.1/lib/libssl.a(libssl-lib-bio_ssl.o) is incompatible with aarch64linux",
+          "status": "fails"
+        },
         "x86_64-linux-gnu": {
           "declared": "not-portable",
           "declared_reason": "curl's TLS backend here is compat.openssl, which builds through OpenSSL's own Configure from an install() hook and is therefore a glibc artefact: it declares provides = [\"platform-sdk\"] and fails this graph's link at setcontext and __isoc23_strtol, which musl does not have. Building OpenSSL inside the graph would change this cell.",
           "diagnostic": "ld.lld: error: undefined symbol: __memcpy_chk",
           "status": "fails"
         },
+        "x86_64-linux-musl": {
+          "diagnostic": "ld.lld: error: undefined symbol: __memcpy_chk",
+          "status": "fails"
+        },
         "x86_64-windows-musl": {
           "declared": "not-portable",
           "declared_reason": "curl's Windows configuration is Schannel plus the checked-in lib/config-win32.h, and both are selected by _WIN32, which a C library presenting POSIX on Windows does not define. With neither HAVE_CONFIG_H nor _WIN32, curl_setup.h reads no configuration at all and stops at curl_setup.h:591 'too small curl_off_t', which names a consequence and not the cause. compat.openssl has no Windows build, so there is no second TLS provider to fall back to.",
@@ -202,10 +290,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -218,10 +314,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -234,10 +338,18 @@
       ],
       "portable": false,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "platform",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "platform",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "platform",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "platform",
           "status": "runs"
@@ -250,10 +362,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -266,10 +386,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -282,10 +410,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -298,10 +434,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -314,10 +458,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -330,10 +482,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -346,12 +506,20 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "diagnostic": "ld.lld: error: unable to find library -latomic",
+          "status": "fails"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "diagnostic": "ld.lld: error: unable to find library -latomic",
+          "status": "fails"
+        },
         "x86_64-windows-musl": {
-          "diagnostic": "alloc ... FAIL (exit 1, 2.03s)",
+          "diagnostic": "alloc ... FAIL (exit 1, 3.72s)",
           "status": "builds"
         }
       }
@@ -362,10 +530,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -378,10 +554,18 @@
       ],
       "portable": false,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "platform",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "platform",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "platform",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "platform",
           "status": "runs"
@@ -394,10 +578,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -410,10 +602,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -426,10 +626,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -442,10 +650,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -458,10 +674,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -474,10 +698,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -490,10 +722,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -506,10 +746,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -522,10 +770,18 @@
       ],
       "portable": true,
       "targets": {
+        "aarch64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-linux-gnu": {
           "kind": "posix",
           "status": "runs"
         },
+        "x86_64-linux-musl": {
+          "kind": "posix",
+          "status": "runs"
+        },
         "x86_64-windows-musl": {
           "kind": "posix",
           "status": "runs"
@@ -543,8 +799,8 @@
     }
   },
   "pins": {
-    "mcpp": "2026.9.21.3",
-    "runtime": "0.15.1",
+    "mcpp": "2026.10.24.1",
+    "runtime": "0.15.2",
     "toolchain": "llvm@22.1.8"
   },
   "schema": 1