diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 1768f87..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,218 +0,0 @@
-# Python CircleCI 2.0 configuration file
-#
-# Check https://circleci.com/docs/2.0/language-python/ for more details
-#
-version: 2.1
-
-# -------------------------------------------------------------------------------------
-# Environments to run the jobs in
-# -------------------------------------------------------------------------------------
-cpu: &cpu
-  docker:
-    - image: circleci/python:3.7
-      auth:
-        username: $DOCKERHUB_USERNAME
-        password: $DOCKERHUB_TOKEN
-  resource_class: medium
-
-gpu: &gpu
-  machine:
-    image: ubuntu-2004-cuda-11.4:202110-01
-    docker_layer_caching: true
-  resource_class: gpu.nvidia.small
-
-# -------------------------------------------------------------------------------------
-# Re-usable commands
-# -------------------------------------------------------------------------------------
-setup_venv: &setup_venv
-  - run:
-      name: Setup Virtual Env
-      working_directory: ~/
-      command: |
-        python -m venv ~/venv
-        echo ". ~/venv/bin/activate" >> $BASH_ENV
-        . ~/venv/bin/activate
-        python --version
-        which python
-        which pip
-        pip install --upgrade pip
-
-install_dep: &install_dep
-  - run:
-      name: Install Dependencies
-      command: |
-        pip install --progress-bar off torch shapely
-
-install_fvcore: &install_fvcore
-  - run:
-      name: Install fvcore
-      command: |
-        BUILD_NIGHTLY=1 python setup.py sdist
-        pip install . -U
-        python -c 'import fvcore; print(fvcore.__version__)'
-
-run_unittests: &run_unittests
-  - run:
-      name: Run Unit Tests
-      command: |
-        python -m unittest discover -v -s tests
-        python -m unittest discover -v -s io_tests
-
-# -------------------------------------------------------------------------------------
-# Jobs to run
-# -------------------------------------------------------------------------------------
-jobs:
-  cpu_tests:
-    <<: *cpu
-
-    working_directory: ~/fvcore
-
-    steps:
-      - checkout
-      - <<: *setup_venv
-
-      # Cache the venv directory that contains dependencies
-      - restore_cache:
-          keys:
-            - cache-key-{{ .Branch }}-ID-20200130
-
-      - <<: *install_dep
-
-      - save_cache:
-          paths:
-            - ~/venv
-          key: cache-key-{{ .Branch }}-ID-20200130
-
-      - <<: *install_fvcore
-
-      - <<: *run_unittests
-
-      - store_artifacts:
-          path: ~/fvcore/dist
-      - persist_to_workspace:
-          root: ~/fvcore/dist
-          paths:
-            - "*"
-
-  gpu_tests:
-    <<: *gpu
-
-    working_directory: ~/fvcore
-
-    steps:
-      - checkout
-      - run:
-          name: Install nvidia-docker
-          working_directory: ~/
-          command: |
-            curl -s -L https://nvidia.github.io/nvidia-docker/gpgkey | sudo apt-key add -
-            distribution=$(. /etc/os-release;echo $ID$VERSION_ID)
-            curl -s -L https://nvidia.github.io/nvidia-docker/$distribution/nvidia-docker.list | \
-            sudo tee /etc/apt/sources.list.d/nvidia-docker.list
-            sudo apt-get update && sudo apt-get install -y nvidia-docker2
-            # reload the docker daemon configuration
-            sudo pkill -SIGHUP dockerd
-
-      - run:
-          name: Launch docker
-          command: |
-            # https://support.circleci.com/hc/en-us/articles/360050623311-Docker-Hub-rate-limiting-FAQ
-            docker login -u $DOCKERHUB_USERNAME -p $DOCKERHUB_TOKEN
-            nvidia-docker run -itd --name fvcore pytorch/pytorch
-            docker exec -it fvcore nvidia-smi
-
-      - run:
-          name: Install fvcore
-          command: |
-            docker cp ~/fvcore fvcore:/fvcore
-            docker exec -it fvcore pip install -e '/fvcore[all]'
-
-      - run:
-          name: Run Unit Tests
-          command: |
-            docker exec -it fvcore python -m unittest discover -v -s /fvcore/tests
-
-  upload_wheel:
-    docker:
-      - image: circleci/python:3.7
-        auth:
-          username: $DOCKERHUB_USERNAME
-          password: $DOCKERHUB_TOKEN
-    working_directory: ~/fvcore
-    steps:
-      - checkout
-      - attach_workspace:
-          at: ~/workspace
-      - run:
-          command: |
-            # no commits in the last 25 hours
-            if [[ -z $(git log --since="25 hours ago") ]]; then
-              echo "No commits in the last day."
-              exit 0
-            fi
-            pip install --progress-bar off --user twine
-            for pkg in ~/workspace/*.tar.gz; do
-              twine upload $pkg
-            done
-
-  build_conda:
-    docker:
-      - image: continuumio/miniconda3
-        auth:
-          username: $DOCKERHUB_USERNAME
-          password: $DOCKERHUB_TOKEN
-    steps:
-      - checkout
-      - run:
-          name: Build Conda Package
-          command: |
-            # no commits in the last 25 hours
-            if [[ -z $(git log --since="25 hours ago") ]]; then
-              echo "No commits in the last day."
-              exit 0
-            fi
-            conda install conda-build
-            bash packaging/build_all_conda.sh
-      - store_artifacts:
-          path: packaging/output_files
-
-workflows:
-  version: 2
-  regular_test:
-    jobs:
-      - cpu_tests:
-          context:
-            - DOCKERHUB_TOKEN
-      - gpu_tests:
-          context:
-            - DOCKERHUB_TOKEN
-
-  nightly:
-    jobs:
-      # https://circleci.com/docs/2.0/contexts/#creating-and-using-a-context
-      - cpu_tests:
-          context:
-            - DOCKERHUB_TOKEN
-      - gpu_tests:
-          context:
-            - DOCKERHUB_TOKEN
-      - build_conda:
-          requires:
-            - cpu_tests
-            - gpu_tests
-          context:
-            - DOCKERHUB_TOKEN
-      - upload_wheel:
-          requires:
-            - cpu_tests
-            - gpu_tests
-          context:
-            - DOCKERHUB_TOKEN
-    triggers:
-      - schedule:
-          # runs at 8am UTC, being 12am or 1am MPK
-          cron: "0 8 * * *"
-          filters:
-            branches:
-              only:
-                - main