Fix demo seed Killed: 9 error on macos

Author: vrom911

nix/hydra/packages.nix

@@ -30,7 +30,8 @@
           # stdenv as the original drv (important to determine targetPlatform).
           drv.stdenv.mkDerivation {
             name = "${exe}";
-            phases = [ "buildPhase" ];
+            buildInputs = [ pkgs.cctools ];
+            phases = [ "buildPhase" "postFixup" ];
             buildPhase = ''
               set -e
 
@@ -46,6 +47,13 @@
               sed 's/${placeholder}/${rev}/' ${drv}/bin/${exe} > $out/bin/${exe}
               chmod +x $out/bin/${exe}
             '';
+            postFixup = ''
+              install_name_tool -add_rpath ${pkgs.zlib}/lib $out/bin/${exe}
+              install_name_tool -add_rpath ${pkgs.lmdb}/lib $out/bin/${exe}
+              install_name_tool -add_rpath ${pkgs.libcxx}/lib $out/bin/${exe}
+              install_name_tool -add_rpath ${pkgs.libiconv}/lib $out/bin/${exe}
+              install_name_tool -add_rpath ${pkgs.libffi}/lib $out/bin/${exe}
+            '';
           };
 
         nativePkgs = hsPkgs;

nix/hydra/project.nix

@@ -45,9 +45,12 @@
               hydra-tx.writeHieFiles = true;
               hydra-tui.writeHieFiles = true;
               hydraw.writeHieFiles = true;
-              hydra-node.dontStrip = false;
-              hydra-tui.dontStrip = false;
-              hydraw.dontStrip = false;
+              # NOTE: This is needed to fix the "Killed: 9" error on macOS aarch64
+              # where the executable is being killed by the OS.
+              # See also: https://github.com/NixOS/nixpkgs/issues/112296
+              hydra-node.dontStrip = true;
+              hydra-tui.dontStrip = true;
+              hydraw.dontStrip = true;
             };
           }
           # Use different static libs on darwin
@@ -90,6 +93,11 @@
           {
             packages.hydra-node.components.library.build-tools = [ pkgs.etcd ];
           }
+          {
+            packages.hydra-node.components.exes.hydra-node.preCheck = ''
+              export HOME=$(mktemp -d)
+            '';
+          }
         ];
       };