diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..f84a5bc3
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,65 @@
+name: CI
+
+on:
+  merge_group:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ '**' ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  compile:
+    name: Compile
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Rustup toolchain install
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ env.RUST_VERSION }}
+
+      - name: Run cargo check
+        run: cargo check --workspace --all-features --all-targets
+
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v4
+
+      - name: Install stable toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ env.RUST_VERSION }}
+          components: rustfmt, clippy
+
+      - name: Run cargo fmt
+        run: cargo fmt --all -- --check
+
+      # - name: Run clippy
+      #   run: cargo clippy --workspace --all-features --benches --examples --tests -- -D warnings
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ env.RUST_VERSION }}
+          components: clippy
+
+      - name: Install testing tools
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cargo-nextest
+
+      - name: Run tests
+        run: cargo nextest run --workspace --all-features --no-capture
diff --git a/src/lib.rs b/src/lib.rs
index 82608b9c..1d19b00f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -17,14 +17,12 @@ pub fn run_program(bin_path: &str) -> U256 {
 
     let program = std::fs::read(bin_path).unwrap();
     let encoded = String::from_utf8(program.to_vec()).unwrap();
-    let bin = hex::decode(encoded[2..].to_owned()).unwrap();
+    let bin = hex::decode(&encoded[2..]).unwrap();
 
     let mut program_code = vec![];
     for raw_opcode_slice in bin.chunks(8) {
         let mut raw_opcode_bytes: [u8; 8] = [0; 8];
-        for i in 0..8 {
-            raw_opcode_bytes[i] = raw_opcode_slice[i];
-        }
+        raw_opcode_bytes.copy_from_slice(&raw_opcode_slice[..8]);
 
         let raw_opcode_u64 = u64::from_be_bytes(raw_opcode_bytes);
         let opcode = Opcode::from_raw_opcode(raw_opcode_u64, &opcode_table);
@@ -76,5 +74,5 @@ pub fn run_program(bin_path: &str) -> U256 {
         vm.current_frame.pc += 1;
     }
 
-    vm.current_frame.storage.get(&U256::zero()).unwrap().clone()
+    *vm.current_frame.storage.get(&U256::zero()).unwrap()
 }
diff --git a/src/opcode.rs b/src/opcode.rs
index 5e653c2f..d1ebefc1 100644
--- a/src/opcode.rs
+++ b/src/opcode.rs
@@ -58,7 +58,7 @@ impl Opcode {
         let imm0: u16 = ((raw_op & 0xffff00000000) >> 32) as u16;
         let imm1: u16 = ((raw_op & 0xffff000000000000) >> 48) as u16;
 
-        let opcode = Opcode {
+        Self {
             variant: opcode_zksync.opcode,
             src0_operand_type: opcode_zksync.src0_operand_type,
             dst0_operand_type: opcode_zksync.dst0_operand_type,
@@ -68,11 +68,9 @@ impl Opcode {
             src1_index: second_four_bits(src0_and_1_index),
             dst0_index: first_four_bits(dst0_and_1_index),
             dst1_index: second_four_bits(dst0_and_1_index),
-            imm0: imm0,
-            imm1: imm1,
-        };
-
-        return opcode;
+            imm0,
+            imm1,
+        }
     }
 }
 
diff --git a/src/state.rs b/src/state.rs
index 675418b8..0be2e3b0 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -43,7 +43,7 @@ impl VMState {
             return self.registers[(index - 1) as usize];
         }
 
-        return U256::zero();
+        U256::zero()
     }
 
     pub fn set_register(&mut self, index: u8, value: U256) {
diff --git a/tests/integration_test.rs b/tests/integration_test.rs
index 7ae154d3..6bfd89e9 100644
--- a/tests/integration_test.rs
+++ b/tests/integration_test.rs
@@ -4,6 +4,6 @@ use u256::U256;
 #[test]
 fn test_add() {
     let bin_path = "./program_artifacts/add.artifacts/add.yul.zbin";
-    let result = run_program(&bin_path);
+    let result = run_program(bin_path);
     assert_eq!(result, U256::from_dec_str("3").unwrap());
 }