diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index cdb11d69..c398b336 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -6,100 +6,103 @@ on:
   - cron: '0 12 * * 1'
 
 jobs:
-  sdist:
-    runs-on: ubuntu-20.04
-    steps:
-    - name: clone repo
-      uses: actions/checkout@v4
-
-    - name: build sdist
-      run: |
-        rm -rf dist/
-        python -m pip install build
-        python -m build --sdist
-
-    - name: upload sdist artifact
-      uses: actions/upload-artifact@v3
-      with:
-        path: dist
-        if-no-files-found: error
-
+#  sdist:
+#    runs-on: ubuntu-20.04
+#    steps:
+#    - name: clone repo
+#      uses: actions/checkout@v4
+#
+#    - name: build sdist
+#      run: |
+#        rm -rf dist/
+#        python -m pip install build
+#        python -m build --sdist
+#
+#    - name: upload sdist artifact
+#      uses: actions/upload-artifact@v3
+#      with:
+#        path: dist
+#        if-no-files-found: error
+#
   linux:
     runs-on: ubuntu-20.04
     strategy:
       fail-fast: false
       matrix:
         include:
-        - spec: cp38-manylinux_x86_64
-        - spec: cp39-manylinux_x86_64
-        - spec: cp310-manylinux_x86_64
-        - spec: cp311-manylinux_x86_64
-        - spec: cp312-manylinux_x86_64
-
-        - spec: cp38-manylinux_i686
-        - spec: cp39-manylinux_i686
-        - spec: cp310-manylinux_i686
-        - spec: cp311-manylinux_i686
-        - spec: cp312-manylinux_i686
-
-        - spec: cp39-musllinux_x86_64
-        - spec: cp310-musllinux_x86_64
-        - spec: cp311-musllinux_x86_64
-        - spec: cp312-musllinux_x86_64
-
-        - spec: cp39-musllinux_i686
-        - spec: cp310-musllinux_i686
-        - spec: cp311-musllinux_i686
-        #- spec: cp312-musllinux_i686  # busted as of 9/22/23
-
-        - spec: cp38-manylinux_aarch64
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp39-manylinux_aarch64
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp310-manylinux_aarch64
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp311-manylinux_aarch64
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp312-manylinux_aarch64
-          foreign_arch: true
-          test_args: '{project}/src/c'
-
-        - spec: cp38-manylinux_ppc64le
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp39-manylinux_ppc64le
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp310-manylinux_ppc64le
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp311-manylinux_ppc64le
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp312-manylinux_ppc64le
-          foreign_arch: true
-          test_args: '{project}/src/c'
-
-        - spec: cp38-manylinux_s390x
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp39-manylinux_s390x
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp310-manylinux_s390x
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp311-manylinux_s390x
-          foreign_arch: true
-          test_args: '{project}/src/c'
-        - spec: cp312-manylinux_s390x
-          foreign_arch: true
-          test_args: '{project}/src/c'
-
+#        - spec: cp38-manylinux_x86_64
+#        - spec: cp39-manylinux_x86_64
+#        - spec: cp310-manylinux_x86_64
+#        - spec: cp311-manylinux_x86_64
+#        - spec: cp312-manylinux_x86_64
+        - spec: cp313-manylinux_x86_64
+          cibw_version: https://github.com/nitzmahone/cibuildwheel/archive/refs/heads/py313_support.zip
+          manylinux_img: quay.io/rolpdog/manylinux_2_28_x86_64:latest
+#
+#        - spec: cp38-manylinux_i686
+#        - spec: cp39-manylinux_i686
+#        - spec: cp310-manylinux_i686
+#        - spec: cp311-manylinux_i686
+#        - spec: cp312-manylinux_i686
+#
+#        - spec: cp39-musllinux_x86_64
+#        - spec: cp310-musllinux_x86_64
+#        - spec: cp311-musllinux_x86_64
+#        - spec: cp312-musllinux_x86_64
+#
+#        - spec: cp39-musllinux_i686
+#        - spec: cp310-musllinux_i686
+#        - spec: cp311-musllinux_i686
+#        #- spec: cp312-musllinux_i686  # busted as of 9/22/23
+#
+#        - spec: cp38-manylinux_aarch64
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp39-manylinux_aarch64
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp310-manylinux_aarch64
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp311-manylinux_aarch64
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp312-manylinux_aarch64
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#
+#        - spec: cp38-manylinux_ppc64le
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp39-manylinux_ppc64le
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp310-manylinux_ppc64le
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp311-manylinux_ppc64le
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp312-manylinux_ppc64le
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#
+#        - spec: cp38-manylinux_s390x
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp39-manylinux_s390x
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp310-manylinux_s390x
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp311-manylinux_s390x
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#        - spec: cp312-manylinux_s390x
+#          foreign_arch: true
+#          test_args: '{project}/src/c'
+#
     steps:
     - name: clone repo
       uses: actions/checkout@v4
@@ -140,8 +143,8 @@ jobs:
       with:
         path: dist
         if-no-files-found: error
-
-
+#
+#
   macos:
     defaults:
       run:
@@ -151,51 +154,53 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        # build for x86_64 under the default hosted macOS 10.x x86_64 runner
-        - spec: cp38-macosx_x86_64
-        - spec: cp39-macosx_x86_64
-        - spec: cp310-macosx_x86_64
-        - spec: cp311-macosx_x86_64
-        - spec: cp312-macosx_x86_64
-#        # build for arm64 under a hacked macOS 12 self-hosted x86_64-on-arm64 runner until arm64 is fully supported
-#        # FIXME: ? cp38-macosx_arm64 requires special handling and fails some test_zdist tests under cibw 2.1.2, skip it (so Apple's XCode python3 won't have a wheel)
-        - spec: cp39-macosx_arm64
-          deployment_target: '11.0'
-          runs_on:
-            - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
-            - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
-          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
-          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
-          sdkroot: macosx11.3
-
-        - spec: cp310-macosx_arm64
-          deployment_target: '11.0'
-          runs_on:
-            - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
-            - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
-          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
-          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
-          sdkroot: macosx11.3
-
-        - spec: cp311-macosx_arm64
-          deployment_target: '11.0'
-          runs_on:
-          - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
-          - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
-          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
-          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
-          sdkroot: macosx11.3
-
-        - spec: cp312-macosx_arm64
-          deployment_target: '11.0'
-          runs_on:
-          - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
-          - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
-          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
-          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
-          sdkroot: macosx11.3
-
-
+#        # build for x86_64 under the default hosted macOS 10.x x86_64 runner
+#        - spec: cp38-macosx_x86_64
+#        - spec: cp39-macosx_x86_64
+#        - spec: cp310-macosx_x86_64
+#        - spec: cp311-macosx_x86_64
+#        - spec: cp312-macosx_x86_64
+        - spec: cp313-macosx_x86_64
+          cibw_version: https://github.com/nitzmahone/cibuildwheel/archive/refs/heads/py313_support.zip
+##        # build for arm64 under a hacked macOS 12 self-hosted x86_64-on-arm64 runner until arm64 is fully supported
+##        # FIXME: ? cp38-macosx_arm64 requires special handling and fails some test_zdist tests under cibw 2.1.2, skip it (so Apple's XCode python3 won't have a wheel)
+#        - spec: cp39-macosx_arm64
+#          deployment_target: '11.0'
+#          runs_on:
+#            - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
+#            - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
+#          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
+#          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
+#          sdkroot: macosx11.3
+#
+#        - spec: cp310-macosx_arm64
+#          deployment_target: '11.0'
+#          runs_on:
+#            - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
+#            - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
+#          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
+#          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
+#          sdkroot: macosx11.3
+#
+#        - spec: cp311-macosx_arm64
+#          deployment_target: '11.0'
+#          runs_on:
+#          - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
+#          - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
+#          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
+#          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
+#          sdkroot: macosx11.3
+#
+#        - spec: cp312-macosx_arm64
+#          deployment_target: '11.0'
+#          runs_on:
+#          - ${{ vars.run_macos_arm64_jobs == 'true' && 'self-hosted' || 'ubuntu-latest' }}
+#          - ${{ vars.run_macos_arm64_jobs == 'true' && 'macOS' || 'ubuntu-latest' }}
+#          maybe_skip: ${{ vars.run_macos_arm64_jobs != 'true' && 'skip' }}
+#          run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
+#          sdkroot: macosx11.3
+#
+#
     steps:
     - name: clone repo
       # need to use v2 until we can upgrade the runners on our private Apple Silicon build infra to one that supports node20
@@ -242,17 +247,18 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - spec: cp38-win_amd64
-        - spec: cp39-win_amd64
-        - spec: cp310-win_amd64
-        - spec: cp311-win_amd64
-        - spec: cp312-win_amd64
-        - spec: cp38-win32
-        - spec: cp39-win32
-        - spec: cp310-win32
-        - spec: cp311-win32
-        - spec: cp312-win32
-
+#        - spec: cp38-win_amd64
+#        - spec: cp39-win_amd64
+#        - spec: cp310-win_amd64
+#        - spec: cp311-win_amd64
+#        - spec: cp312-win_amd64
+        - spec: cp313-win_amd64
+#        - spec: cp38-win32
+#        - spec: cp39-win32
+#        - spec: cp310-win32
+#        - spec: cp311-win32
+#        - spec: cp312-win32
+#
     steps:
     - name: clone repo
       uses: actions/checkout@v4
@@ -261,9 +267,9 @@ jobs:
         CIBW_BUILD: ${{ matrix.spec }}
         CIBW_PRERELEASE_PYTHONS: 'True'
         CIBW_TEST_REQUIRES: pytest setuptools
-        CIBW_TEST_COMMAND: 'python -m pytest {project}/src/c'
+        #CIBW_TEST_COMMAND: 'python -m pytest {project}/src/c'
         # FIXME: /testing takes ~45min on Windows and has some failures...
-        # CIBW_TEST_COMMAND='python -m pytest {project}/src/c {project}/testing'
+        CIBW_TEST_COMMAND: python -m pytest {project}
       run: |
         python -m pip install --upgrade pip
         pip install "${{ matrix.cibw_version || 'cibuildwheel'}}"
@@ -275,17 +281,17 @@ jobs:
       with:
         path: dist
         if-no-files-found: error
-
-  check:
-    if: always()
-    needs:
-    - sdist
-    - linux
-    - macos
-    - windows
-    runs-on: ubuntu-latest
-    steps:
-    - name: Verify all previous jobs succeeded (provides a single check to sample for gating purposes)
-      uses: re-actors/alls-green@release/v1
-      with:
-        jobs: ${{ toJSON(needs) }}
+#
+#  check:
+#    if: always()
+#    needs:
+#    - sdist
+#    - linux
+#    - macos
+#    - windows
+#    runs-on: ubuntu-latest
+#    steps:
+#    - name: Verify all previous jobs succeeded (provides a single check to sample for gating purposes)
+#      uses: re-actors/alls-green@release/v1
+#      with:
+#        jobs: ${{ toJSON(needs) }}