diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index cdd06e06c37dee51a8c7abfefb284a9386d60b09..94413889fc6a3d0c930087ce7a0bb90c1a6b82cd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,37 +1,37 @@
-# Python 3 POCL:
-#   script: |
-#     export PYOPENCL_TEST=portable:cpu
-#     export EXTRA_INSTALL="jax[cpu]"
-#     export JAX_PLATFORMS=cpu
-#     curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-and-test-py-project.sh
-#     . ./build-and-test-py-project.sh
-#   tags:
-#   - python3
-#   - pocl
-#   - mpi
-#   except:
-#   - tags
-#   artifacts:
-#     reports:
-#       junit: test/pytest.xml
-
-# Python 3 Nvidia Titan V:
-#   script: |
-#     curl -L -O https://tiker.net/ci-support-v0
-#     . ./ci-support-v0
-#     export PYOPENCL_TEST=nvi:titan
-#     build_py_project_in_venv
-#     pip install --upgrade "jax[cuda]" -f https://storage.googleapis.com/jax-releases/jax_releases.html
-#     test_py_project
-
-#   tags:
-#   - python3
-#   - nvidia-titan-v
-#   except:
-#   - tags
-#   artifacts:
-#     reports:
-#       junit: test/pytest.xml
+Python 3 POCL:
+  script: |
+    export PYOPENCL_TEST=portable:cpu
+    export EXTRA_INSTALL="jax[cpu]"
+    export JAX_PLATFORMS=cpu
+    curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-and-test-py-project.sh
+    . ./build-and-test-py-project.sh
+  tags:
+  - python3
+  - pocl
+  - mpi
+  except:
+  - tags
+  artifacts:
+    reports:
+      junit: test/pytest.xml
+
+Python 3 Nvidia Titan V:
+  script: |
+    curl -L -O https://tiker.net/ci-support-v0
+    . ./ci-support-v0
+    export PYOPENCL_TEST=nvi:titan
+    build_py_project_in_venv
+    pip install --upgrade "jax[cuda]" -f https://storage.googleapis.com/jax-releases/jax_releases.html
+    test_py_project
+
+  tags:
+  - python3
+  - nvidia-titan-v
+  except:
+  - tags
+  artifacts:
+    reports:
+      junit: test/pytest.xml
 
 Python 3 CuPy Nvidia Titan V:
   script: |
@@ -39,7 +39,7 @@ Python 3 CuPy Nvidia Titan V:
     . ./ci-support-v0
     CONDA_ENVIRONMENT=.test-conda-env-py3.yml
     echo "- cupy" >> "$CONDA_ENVIRONMENT"
-    build_py_project_in_conda_env
+    build_py_project_in_venv
     test_py_project
 
   tags:
@@ -51,105 +51,105 @@ Python 3 CuPy Nvidia Titan V:
     reports:
       junit: test/pytest.xml
 
-# Python 3 POCL Nvidia Titan V:
-#   script: |
-#     curl -L -O https://tiker.net/ci-support-v0
-#     . ./ci-support-v0
-#     export PYOPENCL_TEST=port:titan
-#     build_py_project_in_venv
-#     test_py_project
-
-#   tags:
-#   - python3
-#   - nvidia-titan-v
-#   except:
-#   - tags
-#   artifacts:
-#     reports:
-#       junit: test/pytest.xml
-
-# Python 3 POCL Examples:
-#   script:
-#   - test -n "$SKIP_EXAMPLES" && exit
-#   - export PYOPENCL_TEST=portable:cpu
-#   - curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-py-project-and-run-examples.sh
-#   - ". ./build-py-project-and-run-examples.sh"
-#   tags:
-#   - python3
-#   - pocl
-#   - large-node
-#   except:
-#   - tags
-
-# Python 3 Conda:
-#   script: |
-#     export PYOPENCL_TEST=portable:cpu
-
-#     # Avoid crashes like https://gitlab.tiker.net/inducer/arraycontext/-/jobs/536021
-#     sed -i 's/jax/jax !=0.4.6/' .test-conda-env-py3.yml
-
-#     curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-and-test-py-project-within-miniconda.sh
-#     . ./build-and-test-py-project-within-miniconda.sh
-#   tags:
-#   # - docker-runner
-#   - linux
-#   - large-node
-#   except:
-#   - tags
-
-# Documentation:
-#   script: |
-#     curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-docs.sh
-#     CI_SUPPORT_SPHINX_VERSION_SPECIFIER=">=4.0"
-#     . ./build-docs.sh
-#   tags:
-#   - python3
-
-# Ruff:
-#   script:
-#   - pipx install ruff
-#   - ruff check
-#   tags:
-#   - docker-runner
-#   except:
-#   - tags
-
-# Pylint:
-#   script: |
-#     EXTRA_INSTALL="jax[cpu]"
-#     curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-pylint.sh
-#     . ./prepare-and-run-pylint.sh "$CI_PROJECT_NAME" examples/*.py test/test_*.py
-#   tags:
-#   - python3
-#   except:
-#   - tags
-
-# Mypy:
-#   script: |
-#     EXTRA_INSTALL="mypy pytest"
-
-#     curl -L -O https://tiker.net/ci-support-v0
-#     . ./ci-support-v0
-
-#     build_py_project_in_venv
-#     ./run-mypy.sh
-#   tags:
-#   - python3
-#   except:
-#   - tags
-
-# Downstream:
-#   parallel:
-#     matrix:
-#     - DOWNSTREAM_PROJECT: [meshmode, grudge, mirgecom, mirgecom_examples]
-#   tags:
-#   - large-node
-#   - "docker-runner"
-#   script: |
-#     curl -L -O https://tiker.net/ci-support-v0
-#     . ./ci-support-v0
-#     test_downstream "$DOWNSTREAM_PROJECT"
-
-#     if [[ "$DOWNSTREAM_PROJECT" = "meshmode" ]]; then
-#         python ../examples/simple-dg.py --lazy
-#     fi
+Python 3 POCL Nvidia Titan V:
+  script: |
+    curl -L -O https://tiker.net/ci-support-v0
+    . ./ci-support-v0
+    export PYOPENCL_TEST=port:titan
+    build_py_project_in_venv
+    test_py_project
+
+  tags:
+  - python3
+  - nvidia-titan-v
+  except:
+  - tags
+  artifacts:
+    reports:
+      junit: test/pytest.xml
+
+Python 3 POCL Examples:
+  script:
+  - test -n "$SKIP_EXAMPLES" && exit
+  - export PYOPENCL_TEST=portable:cpu
+  - curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-py-project-and-run-examples.sh
+  - ". ./build-py-project-and-run-examples.sh"
+  tags:
+  - python3
+  - pocl
+  - large-node
+  except:
+  - tags
+
+Python 3 Conda:
+  script: |
+    export PYOPENCL_TEST=portable:cpu
+
+    # Avoid crashes like https://gitlab.tiker.net/inducer/arraycontext/-/jobs/536021
+    sed -i 's/jax/jax !=0.4.6/' .test-conda-env-py3.yml
+
+    curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-and-test-py-project-within-miniconda.sh
+    . ./build-and-test-py-project-within-miniconda.sh
+  tags:
+  # - docker-runner
+  - linux
+  - large-node
+  except:
+  - tags
+
+Documentation:
+  script: |
+    curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/main/build-docs.sh
+    CI_SUPPORT_SPHINX_VERSION_SPECIFIER=">=4.0"
+    . ./build-docs.sh
+  tags:
+  - python3
+
+Ruff:
+  script:
+  - pipx install ruff
+  - ruff check
+  tags:
+  - docker-runner
+  except:
+  - tags
+
+Pylint:
+  script: |
+    EXTRA_INSTALL="jax[cpu]"
+    curl -L -O https://gitlab.tiker.net/inducer/ci-support/raw/master/prepare-and-run-pylint.sh
+    . ./prepare-and-run-pylint.sh "$CI_PROJECT_NAME" examples/*.py test/test_*.py
+  tags:
+  - python3
+  except:
+  - tags
+
+Mypy:
+  script: |
+    EXTRA_INSTALL="mypy pytest"
+
+    curl -L -O https://tiker.net/ci-support-v0
+    . ./ci-support-v0
+
+    build_py_project_in_venv
+    ./run-mypy.sh
+  tags:
+  - python3
+  except:
+  - tags
+
+Downstream:
+  parallel:
+    matrix:
+    - DOWNSTREAM_PROJECT: [meshmode, grudge, mirgecom, mirgecom_examples]
+  tags:
+  - large-node
+  - "docker-runner"
+  script: |
+    curl -L -O https://tiker.net/ci-support-v0
+    . ./ci-support-v0
+    test_downstream "$DOWNSTREAM_PROJECT"
+
+    if [[ "$DOWNSTREAM_PROJECT" = "meshmode" ]]; then
+        python ../examples/simple-dg.py --lazy
+    fi