Try looking for variables

.gitlab-ci-build.yml.in

@@ -21,9 +21,6 @@ stages:
         EXCEPT: '-except=upload'
         JOB_PREFIX: 'ci'
   needs:
-    - pipeline: $PARENT_PIPELINE_ID
-      job: continue
-      artifacts: true
     - pipeline: $PARENT_PIPELINE_ID
       job: generate
       artifacts: true
@@ -44,6 +41,9 @@ qemu.amd64:
     tag: qemu
   parallel:
     matrix: QEMU_MATRIX
+  before_script:
+    - echo $BUILD
+    - env
 
 virtualbox-iso.amd64:
   extends: .build

flake.nix

@@ -164,8 +164,8 @@
 						for vars in distros/**/*.pkrvars.hcl.sh; do
 							bash "./''${vars}"
 						done
-						BUILD="$(date "+%Y.%m.%d.%H")"
-						echo "BUILD=$BUILD" >> build.env
+						set -x
+						echo "BUILD=$(date "+%Y.%m.%d.%H")" >> build.env
 					'';
 				};
 				shellcheck = pkgs.writeShellApplication {