diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..3eff2f6
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,88 @@
+name: Rust
+
+on:
+  push:
+    branches:
+      - 'main'
+      - '!gh-pages'
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      RUST_BACKTRACE: 1
+      CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install C deps
+        run: |
+          set -x
+          sudo apt-get install libibus-1.0-dev
+        shell: bash
+      - name: install just
+        run: |
+          set -x
+          # create ~/bin
+          mkdir -p ~/bin
+          curl --proto '=https' --tlsv1.2 -sSf https://just.systems/install.sh | bash -s -- --to ~/bin
+          export PATH="$PATH:$HOME/bin"
+          echo "$HOME/bin" >> $GITHUB_PATH
+      - name: Install bindgen
+        run: |
+          set -x
+          mkdir bindgen && cd bindgen
+          sudo apt-get install libclang1
+          URL_ROOT=https://github.com/rust-lang/rust-bindgen/releases/download/v0.69.4
+          BINDGEN_TAR=bindgen-cli-x86_64-unknown-linux-gnu.tar.xz
+          SHA256_FILE=${BINDGEN_TAR}.sha256
+          wget "$URL_ROOT/$BINDGEN_TAR" -O bindgen_cli.tar.xz
+          tar -xf  ./bindgen_cli.tar.xz --strip-components=1
+          echo "$(pwd)" >> $GITHUB_PATH
+        shell: bash
+      - run: |
+          set -x
+          just --yes ffi
+          git diff --exit-code
+      - run: just build
+      - run: cargo test
+      - run: cd vncharset && cargo test
+  msrv:
+    runs-on: ubuntu-latest
+    if: false
+    env:
+      CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+      # add_of_mut! requires for soundness
+      MSRV: 1.51.0
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          rustup toolchain install ${{ env.MSRV }}
+          rustup default ${{ env.MSRV }}
+      - run: |
+          rustup run stable cargo generate-lockfile
+          rustup run stable cargo fetch
+      - run: |
+          cargo build --all-targets --locked
+      - run: |
+          cargo test
+
+  rustfmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: cargo fmt --all -- --check
+
+  clippy:
+    if: false
+    runs-on: ubuntu-latest
+    needs: [build]
+    env:
+      CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
+    steps:
+      - uses: actions/checkout@v4
+      - run: |
+          rustup toolchain install nightly -c clippy
+          rustup default nightly
+      - run: cargo clippy --all-targets --all-features -- -Dwarnings
+
diff --git a/vncharset/src/lib.rs b/vncharset/src/lib.rs
index 237e99b..4a94b43 100644
--- a/vncharset/src/lib.rs
+++ b/vncharset/src/lib.rs
@@ -223,7 +223,9 @@ impl<'a> Vni<'a> {
                     dbg!(&out);
                 }
             }
-            Mac => {unimplemented!()}
+            Mac => {
+                unimplemented!()
+            }
         }
         out
     }