diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index b5f947fd..00000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,83 +0,0 @@
-version: 2.1
-
-executors:
-  linux:
-    docker:
-      - image: cimg/rust:1.70
-    resource_class: small
-
-jobs:
-  test:
-    # The tests need CUDA, hence use a different docker image.
-    docker:
-      - image: nvidia/cuda:12.0.1-devel-ubuntu22.04
-    resource_class: small
-    environment:
-      RUST_LOG: trace
-      # Build the kernel only for the single architecture . This should reduce
-      # the overall compile-time significantly.
-      EC_GPU_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
-      BELLMAN_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
-      NEPTUNE_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
-    steps:
-      - checkout
-      - run:
-          name: Install requirements
-          command: |
-            apt update
-            apt install ocl-icd-opencl-dev curl --yes
-      - run:
-          name: Install Rust
-          command: curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain $(cat rust-toolchain) -y
-      - run:
-          # For some reason `source ~/.cargo.env` does not work.
-          name: Setup environment
-          command: |
-            echo 'export PATH="~/.cargo/bin:${PATH}"' | tee --append ${BASH_ENV}
-            echo 'export LD_LIBRARY_PATH=/usr/local/cuda/compat' | tee --append ${BASH_ENV}
-            source ${BASH_ENV}
-      # Run clippy as apart of the test job as it also needs the nvidia toolkit
-      # in order to compile
-      - run:
-          name: Run cargo clippy
-          command: cargo clippy --workspace -- -D warnings
-      - run:
-          name: Test
-          command: cargo test --verbose
-
-  rustfmt:
-    executor: linux
-    steps:
-      - checkout
-      - run:
-          name: Run cargo fmt
-          command: cargo fmt --all -- --check
-
-  test_darwin:
-    macos:
-      xcode: "13.4.1"
-    resource_class: macos.m1.medium.gen1
-    environment:
-      RUST_LOG: trace
-    steps:
-      - checkout
-      - run:
-          name: Install other dependencies with Homebrew
-          command: HOMEBREW_NO_AUTO_UPDATE=1 brew install hwloc rustup-init
-      - run:
-          name: Install Rust
-          command: |
-            rustup-init --profile minimal --default-toolchain $(cat rust-toolchain) -y
-            source ${HOME}/.cargo/env
-      - run:
-          name: Test (Darwin)
-          # CUDA isn't support on MacOS, hence only enable OpenCL.
-          command: cargo test --release --verbose --no-default-features --features opencl
-
-workflows:
-  version: 2.1
-  test_all:
-    jobs:
-      - rustfmt
-      - test
-      - test_darwin
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..1707cc21
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,63 @@
+name: CI
+
+on: [pull_request, push]
+
+# Cancel a job if there's a new on on the same branch started.
+# Based on https://stackoverflow.com/questions/58895283/stop-already-running-workflow-job-in-github-actions/67223051#67223051
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  CARGO_INCREMENTAL: 0
+  RUST_BACKTRACE: 1
+  # Faster crates.io index checkout.
+  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+  RUST_LOG: debug
+  # Build the kernel only for the single architecture . This should reduce
+  # the overall compile-time significantly.
+  EC_GPU_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
+  BELLMAN_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
+  NEPTUNE_CUDA_NVCC_ARGS: --fatbin --gpu-architecture=sm_75 --generate-code=arch=compute_75,code=sm_75
+
+jobs:
+  check_clippy:
+    runs-on: ubuntu-24.04
+    name: Clippy
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install required packages
+        run: sudo apt install --no-install-recommends --yes libhwloc-dev nvidia-cuda-toolkit ocl-icd-opencl-dev
+      - name: Run cargo clippy
+        run: cargo clippy --all-targets --workspace -- -D warnings
+
+  check_fmt:
+    runs-on: ubuntu-24.04
+    name: Checking fmt
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run cargo fmt
+        run: cargo fmt --all -- --check
+
+  test:
+    runs-on: ubuntu-24.04
+    name: Test
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install required packages
+        run: sudo apt install --no-install-recommends --yes libhwloc-dev nvidia-cuda-toolkit ocl-icd-opencl-dev
+      # In case no GPUs are available, it's using the CPU fallback.
+      - name: Test
+        run: cargo test --verbose
+
+  test_macos:
+    runs-on: macos-latest
+    name: Test in release mode on MacOS
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install required packages
+        run: HOMEBREW_NO_AUTO_UPDATE=1 brew install hwloc
+
+      - name: Run usual tests in release profile
+        # CUDA isn't support on MacOS, hence only enable OpenCL.
+        run: cargo test --verbose --release --no-default-features -- --nocapture