diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index 70fdd4d54..000000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,84 +0,0 @@
-defaults: &defaults
-  working_directory: ~/shadow
-  docker:
-    - image: azul/zulu-openjdk:21-latest
-  environment:
-    - TERM: "dumb"
-    - GRADLE_OPTS: "-Xmx1024m"
-
-version: 2
-jobs:
-  build:
-    <<: *defaults
-    steps:
-      - checkout
-        #- run: curl -k -o /tmp/gd_bundle-g2.crt https://certs.godaddy.com/repository/gd_bundle-g2.crt
-        #- run: sudo $JAVA_HOME/bin/keytool -importcert -alias gd_bundle-g2 -cacerts -file /tmp/gd_bundle-g2.crt -storepass changeit
-      - restore_cache:
-          keys:
-            - v1-gradle-{{ .Branch }}-{{ checksum "gradle/wrapper/gradle-wrapper.properties" }}-{{ checksum "gradle/dependencies.gradle" }}
-            - v1-gradle-{{ .Branch }}-{{ checksum "gradle/wrapper/gradle-wrapper.properties" }}
-            - v1-gradle-{{ .Branch }}
-            - v1-gradle-main
-            - v1-gradle
-
-      - run: ./gradlew downloadDependencies
-
-      - save_cache:
-          key: v1-gradle-{{ .Branch }}-{{ checksum "gradle/wrapper/gradle-wrapper.properties" }}-{{ checksum "gradle/dependencies.gradle" }}
-          paths:
-            - ~/.gradle
-
-      - run: ./gradlew build
-
-      - run:
-          name: Save test results
-          command: |
-            mkdir -p ~/junit/
-            find . -type f -regex ".*/build/test-results/.*xml" -exec cp {} ~/junit/ \;
-          when: always
-
-      - store_test_results:
-          path: ~/junit
-
-      - store_artifacts:
-          path: ~/junit
-
-      - persist_to_workspace:
-          root: ~/shadow
-          paths:
-            - build/*
-
-  deploy-snapshot:
-    <<: *defaults
-    steps:
-      - checkout
-      - restore_cache:
-          keys:
-            - v1-gradle-{{ .Branch }}-{{ checksum "gradle/wrapper/gradle-wrapper.properties" }}-{{ checksum "gradle/dependencies.gradle" }}
-            - v1-gradle-{{ .Branch }}-{{ checksum "gradle/wrapper/gradle-wrapper.properties" }}
-            - v1-gradle-{{ .Branch }}
-            - v1-gradle-main
-            - v1-gradle
-
-      - attach_workspace:
-          at: ~/build
-
-      - run: ./gradlew artifactoryPublish
-
-workflows:
-  version: 2
-  build_and_publish:
-    jobs:
-      - build:
-          filters:
-            branches:
-              ignore: gh-pages
-#      - deploy-snapshot:
-#          requires:
-#            - build
-#          context:
-#            - release
-#          filters:
-#            branches:
-#              only: main
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000..a95da0095
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  pull_request:
+    branches:
+      - main
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 21
+      - uses: gradle/actions/setup-gradle@v3
+        with:
+          gradle-home-cache-cleanup: true
+          validate-wrappers: true
+      - run: ./gradlew build
diff --git a/.github/workflows/gradle-wrapper-validation.yml b/.github/workflows/gradle-wrapper-validation.yml
deleted file mode 100644
index ed844d98d..000000000
--- a/.github/workflows/gradle-wrapper-validation.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: "Validate Gradle Wrapper"
-on:
-  push:
-    paths:
-      - 'gradlew'
-      - 'gradlew.bat'
-      - 'gradle/wrapper/'
-  pull_request:
-    paths:
-      - 'gradlew'
-      - 'gradlew.bat'
-      - 'gradle/wrapper/'
-
-jobs:
-  validation:
-    name: "Validation"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gradle/actions/wrapper-validation@v3