age-plugin-fido2prf: fix darwin build by patching hardcoded Homebrew paths (#520963)

pkgs/by-name/ag/age-plugin-fido2prf/package.nix

@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildGoModule,
   fetchFromGitHub,
   libfido2,
@@ -26,6 +27,24 @@ buildGoModule (finalAttrs: {
 
   buildInputs = [ libfido2 ];
 
+  postConfigure = lib.optionalString stdenv.hostPlatform.isDarwin ''
+    chmod -R +w vendor/github.com/keys-pub/go-libfido2
+    substituteInPlace vendor/github.com/keys-pub/go-libfido2/fido2_static_arm64.go \
+      --replace-fail \
+        '/opt/homebrew/opt/libfido2/lib/libfido2.a /opt/homebrew/opt/openssl@3/lib/libcrypto.a ''${SRCDIR}/darwin/arm64/lib/libcbor.a' \
+        '-lfido2' \
+      --replace-fail \
+        '-I/opt/homebrew/opt/libfido2/include -I/opt/homebrew/opt/openssl@3/include' \
+        '-I${libfido2.dev}/include'
+    substituteInPlace vendor/github.com/keys-pub/go-libfido2/fido2_static_amd64.go \
+      --replace-fail \
+        '/usr/local/lib/libfido2.a /usr/local/opt/openssl@3/lib/libcrypto.a ''${SRCDIR}/darwin/amd64/lib/libcbor.a' \
+        '-lfido2' \
+      --replace-fail \
+        '-I/usr/local/opt/libfido2/include -I/usr/local/opt/openssl@3/include' \
+        '-I${libfido2.dev}/include'
+  '';
+
   meta = {
     description = "Age plugin to encrypt files with FIDO2 tokens in a way compatible to typage";
     homepage = "https://github.com/FiloSottile/typage/";