diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
deleted file mode 100644
index 78f7d57ce..000000000
--- a/.gitlab-ci.yml
+++ /dev/null
@@ -1,237 +0,0 @@
-stages:
-  - check
-  - test
-  - nightly-test
-  - build
-  - publish
-
-default:
-  interruptible:                   true
-  retry:
-    max: 2
-    when:
-      - runner_system_failure
-      - unknown_failure
-      - api_failure
-
-variables:
-  CI_IMAGE:                        "paritytech/ci-unified:bullseye-1.74.0-2023-11-01-v20231204"
-  # BUILDAH_IMAGE is defined in group variables
-  BUILDAH_COMMAND:                 "buildah --storage-driver overlay2"
-
-.common-refs:                      &common-refs
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "schedule"
-      when: never
-    - if: $CI_PIPELINE_SOURCE == "web"
-    - if: $CI_COMMIT_REF_NAME == "main"
-    - if: $CI_COMMIT_REF_NAME =~ /^[0-9]+$/                         # PRs
-    - if: $CI_COMMIT_REF_NAME =~ /^v[0-9]+\.[0-9]+.*$/              # i.e. v1.0, v2.1rc1
-
-.publish-refs:                     &publish-refs
-  rules:
-    - if: '$CI_PIPELINE_SOURCE == "schedule"'
-      when: never
-    - if: $CI_COMMIT_REF_NAME == "main"
-    - if: $CI_COMMIT_REF_NAME =~ /^v[0-9]+\.[0-9]+.*$/              # i.e. v1.0, v2.1rc1
-
-.rust-info-script:                 &rust-info-script
-  - rustup show
-  - cargo --version
-  - rustup +nightly show
-  - cargo +nightly --version
-  - bash --version
-
-.docker-env:                       &docker-env
-  image:                           "${CI_IMAGE}"
-  before_script:
-    - *rust-info-script
-  tags:
-    - linux-docker-vm-c2
-
-.kubernetes-env:                   &kubernetes-env
-  image:                           "${CI_IMAGE}"
-  tags:
-    - kubernetes-parity-build
-
-.collect-artifacts:                &collect-artifacts
-  artifacts:
-    name:                          "${CI_JOB_NAME}_${CI_COMMIT_REF_NAME}"
-    when:                          on_success
-    expire_in:                     1 days
-    paths:
-      - ./artifacts/
-
-#### stage:                        check
-
-fmt:
-  stage:                           check
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - cargo +nightly fmt --all -- --check
-
-clippy:
-  stage:                           check
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - cargo clippy --all-targets
-
-check-docs:
-  stage:                           check
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - RUSTDOCFLAGS="--cfg docsrs --deny rustdoc::broken_intra_doc_links"
-        cargo doc --verbose --workspace --no-deps --document-private-items --all-features
-
-check-code:
-  stage:                           check
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - cargo install cargo-hack
-    - cargo hack check --workspace --each-feature --all-targets
-
-check-staking-miner-playground:
-  stage:                           check
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - rustup target add wasm32-unknown-unknown --toolchain nightly
-    - cargo +nightly install wasm-gc
-    - cargo check --manifest-path staking-miner-playground/Cargo.toml
-
-### stage:                         test
-
-test-ubuntu:
-  stage:                           test
-  needs:                           []
-  <<:                              *docker-env
-  <<:                              *common-refs
-  script:
-    - RUST_LOG=info cargo test --workspace -- --nocapture
-
-### stage:                         nightly-test
-
-nightly-test:
-  stage:                           nightly-test
-  <<:                              *docker-env
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "schedule"
-  script:
-    - git clone -b master --depth 1 https://github.com/paritytech/polkadot-sdk.git polkadot-sdk
-    - cd polkadot-sdk
-    - cargo build -p polkadot --release --features fast-runtime
-    - mkdir -p ~/.local/bin
-    - mv ./target/release/polkadot /usr/bin
-    - mv ./target/release/polkadot-execute-worker /usr/bin
-    - mv ./target/release/polkadot-prepare-worker /usr/bin
-    - polkadot --version
-    - cd -
-    - rm -rf polkadot
-    - cd staking-miner-playground
-    - cargo build --release --features test-trimming
-    - mv ./target/release/staking-miner-playground /usr/bin
-    - staking-miner-playground --version
-    - cd -
-    - RUST_LOG=info cargo test --workspace --all-features -- --nocapture
-    - cargo clean
-  after_script:
-    - echo $CI_JOB_STATUS > nightly_test_result
-  artifacts:
-    when: always
-    paths:
-      - nightly_test_result
-
-nightly-test-notification:
-  stage:                           nightly-test
-  image:                           paritytech/tools:latest
-  rules:
-    - if: $CI_PIPELINE_SOURCE == "schedule"
-  needs:                           ["nightly-test"]
-  when:                            always
-  script:
-    - \[ ! -f nightly_test_result \] && TEST_JOB_STATUS=failed || TEST_JOB_STATUS=$(<nightly_test_result)
-    - 'curl
-        -X POST
-        -H "Accept: application/vnd.github+json"
-        -H "Authorization: token ${GITHUB_TOKEN}"
-        "https://api.github.com/repos/paritytech/staking-miner-v2/actions/workflows/nightly.yml/dispatches"
-        -d $"{\"ref\":\"main\",
-              \"inputs\":{
-                \"gitlab_pipeline\":\"${CI_PIPELINE_URL}\",
-                \"gitlab_test_job_status\":\"${TEST_JOB_STATUS}\"
-              }}"'
-  tags:
-    - kubernetes-parity-build
-
-### stage:                         build
-
-build:
-  stage:                           build
-  <<:                              *docker-env
-  <<:                              *publish-refs
-  <<:                              *collect-artifacts
-  script:
-    - cargo build --release --locked
-    - mv target/release/polkadot-staking-miner artifacts/
-    - mv Dockerfile artifacts/
-
-### stage:                         publish
-
-build-push-image:
-  stage:                           publish
-  <<:                              *kubernetes-env
-  <<:                              *publish-refs
-  image:                           $BUILDAH_IMAGE
-  variables:
-    GIT_STRATEGY:                  none
-    DOCKER_USER:                   $Docker_Hub_User_Parity
-    DOCKER_PASS:                   $Docker_Hub_Pass_Parity
-    IMAGE_NAME:                    paritytech/staking-miner-v2
-  script:
-    # version is either "main-<short_sha>" or tag
-    - if [[ $CI_COMMIT_REF_NAME == "main" ]];
-        then
-          export VERSION=main-${CI_COMMIT_SHORT_SHA};
-        else
-          export VERSION=$CI_COMMIT_REF_NAME;
-        fi
-    - test "$DOCKER_USER" -a "$DOCKER_PASS" ||
-        ( echo "no docker credentials provided"; exit 1 )
-    - cd ./artifacts
-    - $BUILDAH_COMMAND build
-        --format=docker
-        --build-arg VCS_REF="${CI_COMMIT_SHA}"
-        --build-arg BUILD_DATE="$(date -u '+%Y-%m-%dT%H:%M:%SZ')"
-        --build-arg IMAGE_NAME="${IMAGE_NAME}"
-        --tag "$IMAGE_NAME:latest"
-        --tag "$IMAGE_NAME:$VERSION"
-        --file Dockerfile .
-    # The job will success only on the protected branch
-    - echo "$DOCKER_PASS" |
-        buildah login --username "$DOCKER_USER" --password-stdin docker.io
-    - $BUILDAH_COMMAND info
-    - $BUILDAH_COMMAND push --format=v2s2 "$IMAGE_NAME:latest"
-    - $BUILDAH_COMMAND push --format=v2s2 "$IMAGE_NAME:$VERSION"
-  after_script:
-    - buildah logout --all
-
-publish-docker-image-description:
-  stage:                           publish
-  <<:                              *kubernetes-env
-  image:                           paritytech/dockerhub-description
-  variables:
-    DOCKER_USERNAME:               $Docker_Hub_User_Parity
-    DOCKER_PASSWORD:               $Docker_Hub_Pass_Parity
-    README_FILEPATH:               $CI_PROJECT_DIR/Dockerfile.README.md
-    DOCKERHUB_REPOSITORY:          paritytech/staking-miner-v2
-    SHORT_DESCRIPTION:             "staking-miner-v2"
-  rules:
-  - if: $CI_COMMIT_REF_NAME == "main"
-    changes:
-    - Dockerfile.README.md
-  script:
-    - cd / && sh entrypoint.sh