diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..ec6e107
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,21 @@
+# EditorConfig helps developers define and maintain consistent
+# coding styles between different editors and IDEs
+# editorconfig.org
+
+root = true
+
+[*]
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+indent_style = space
+indent_size = 4
+
+[*.md]
+# double whitespace at end of line
+# denotes a line break in Markdown
+trim_trailing_whitespace = false
+
+[*.yml]
+indent_size = 2
diff --git a/.github/workflows/pr_lint.yml b/.github/workflows/pr_lint.yml
new file mode 100644
index 0000000..852e4ff
--- /dev/null
+++ b/.github/workflows/pr_lint.yml
@@ -0,0 +1,41 @@
+name: PR Lint
+concurrency:
+  group: Conventional PR-${{ github.ref }}
+  cancel-in-progress: true
+on:
+  pull_request:
+    types: ['opened', 'edited', 'reopened', 'synchronize']
+jobs:
+  WIP:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: wip/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  Conventional:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: Namchee/conventional-pr@v0.12.1
+        # env:
+        #   GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          # to override config-conventional rules, specify a relative path to your rules module, actions/checkout is required for this setting!
+          # commitlintRulesPath: "./commitlint.rules.js" # default: undefined
+          close: false
+          issue: false
+          message: 'The title of this PR does not conform the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/). Please fix it, thx.'
+
+          # if the PR contains a single commit, fail if the commit message and the PR title do not match
+          access_token: ${{ secrets.GITHUB_TOKEN }}
+
+  Label:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Add labels based on PR title
+        uses: TDAK1509/set-label-based-on-pr-title@v1
+        with:
+          words: feat;perf;refactor;fix;chore;docs;style;ci
+          labels: feature;enhancement;refactor;bugfix;chore;document;style;skip_changelog
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
diff --git a/Cargo.toml b/Cargo.toml
index 8ad8672..7c5c4e4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [workspace]
 members = [
-    "tests",
     "common/blst",
     "common/types",
     "common/util",
     "contracts/selection",
+    "tests",
 ]
 
 [profile.release]
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..68b6d3b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,75 @@
+ERBOSE := $(if ${CI},--verbose,)
+
+COMMIT := $(shell git rev-parse --short HEAD)
+
+ifneq ("$(wildcard /usr/lib/librocksdb.so)","")
+	SYS_LIB_DIR := /usr/lib
+else ifneq ("$(wildcard /usr/lib64/librocksdb.so)","")
+	SYS_LIB_DIR := /usr/lib64
+else
+	USE_SYS_ROCKSDB :=
+endif
+
+USE_SYS_ROCKSDB :=
+SYS_ROCKSDB := $(if ${USE_SYS_ROCKSDB},ROCKSDB_LIB_DIR=${SYS_LIB_DIR},)
+
+CARGO := env ${SYS_ROCKSDB} cargo
+
+test:
+	${CARGO} test ${VERBOSE} --all -- --skip trust_metric --nocapture
+
+doc:
+	cargo doc --all --no-deps
+
+doc-deps:
+	cargo doc --all
+
+# generate GraphQL API documentation
+doc-api:
+	bash docs/build/gql_api.sh
+
+check:
+	${CARGO} check ${VERBOSE} --all
+
+build:
+	${CARGO} build ${VERBOSE} --release
+
+check-fmt:
+	cargo +nightly fmt ${VERBOSE} --all -- --check
+
+fmt:
+	cargo +nightly fmt ${VERBOSE} --all
+
+sort:
+	cargo sort -gw
+
+check-sort:
+	cargo sort -gwc
+
+ci: check-fmt clippy test
+
+info:
+	date
+	pwd
+	env
+
+# For counting lines of code
+stats:
+	@cargo count --version || cargo +nightly install --git https://github.com/kbknapp/cargo-count
+	@cargo count --separator , --unsafe-statistics
+
+# Use cargo-audit to audit Cargo.lock for crates with security vulnerabilities
+# expecting to see "Success No vulnerable packages found"
+security-audit:
+	@cargo audit --version || cargo install cargo-audit
+	@cargo audit
+
+
+unit-test: test
+
+schema:
+	make -C common/types/ schema
+
+.PHONY: build prod prod-test
+.PHONY: fmt test clippy doc doc-deps doc-api check stats
+.PHONY: ci info security-audit
diff --git a/common/blst/Cargo.toml b/common/blst/Cargo.toml
index 1467982..8ab3cfb 100644
--- a/common/blst/Cargo.toml
+++ b/common/blst/Cargo.toml
@@ -3,7 +3,6 @@ name = "blst"
 version = "0.1.0"
 edition = "2018"
 build = "build.rs"
-
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
diff --git a/common/types/Cargo.toml b/common/types/Cargo.toml
index 50c2756..7acb289 100644
--- a/common/types/Cargo.toml
+++ b/common/types/Cargo.toml
@@ -2,11 +2,10 @@
 name = "axon-types"
 version = "0.1.0"
 edition = "2021"
-
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+molecule = { version = "0.7", default-features = false }
 # ckb-types = { version = "0.108", default-features = false }
 # ethereum-types = { version = "0.14", default-features = false }
 molecule2 = { path = "moleculec-c2" }
-molecule = { version = "0.7", default-features = false }
diff --git a/common/util/Cargo.toml b/common/util/Cargo.toml
index 31eb757..dedb40a 100644
--- a/common/util/Cargo.toml
+++ b/common/util/Cargo.toml
@@ -2,10 +2,9 @@
 name = "util"
 version = "0.1.0"
 edition = "2021"
-
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-ckb-std = "0.12"
 blake2b-ref = { version = "0.3", default-features = false }
+ckb-std = "0.12"
 hex = { version = "0.4.3", default-features = false }
diff --git a/contracts/selection/Cargo.toml b/contracts/selection/Cargo.toml
index ac50dc6..608cdf4 100644
--- a/contracts/selection/Cargo.toml
+++ b/contracts/selection/Cargo.toml
@@ -2,10 +2,9 @@
 name = "selection"
 version = "0.1.0"
 edition = "2021"
-
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-ckb-std = "0.12"
 axon-types = { path = "../../common/types" }
+ckb-std = "0.12"
 util = { path = "../../common/util" }
diff --git a/tests/Cargo.toml b/tests/Cargo.toml
index 1e7d967..e6d9092 100644
--- a/tests/Cargo.toml
+++ b/tests/Cargo.toml
@@ -2,16 +2,15 @@
 name = "tests"
 version = "0.1.0"
 edition = "2018"
-
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+bit-vec = "0.6.3"
+blst = "0.3.4"
+ckb-system-scripts = "0.5"
 ckb-testtool = "0.9"
+hex = "0.4.3"
+keccak-hash = "0.10"
 molecule = "0.7"
-ckb-system-scripts = "0.5"
-blst = "0.3.4"
 rand = "0.8.4"
 rlp = "0.5.1"
-keccak-hash = "0.10"
-bit-vec = "0.6.3"
-hex = "0.4.3"
diff --git a/tests/src/helper.rs b/tests/src/helper.rs
index 6560ebe..e6d155a 100644
--- a/tests/src/helper.rs
+++ b/tests/src/helper.rs
@@ -1,12 +1,7 @@
 #![allow(dead_code)]
 
 use crate::axon;
-use ckb_testtool::{
-    ckb_types::{
-        packed::*,
-        prelude::*,
-    },
-};
+use ckb_testtool::ckb_types::{packed::*, prelude::*};
 
 pub fn axon_byte32(bytes: &Byte32) -> axon::Byte32 {
     let bytes: [u8; 32] = bytes.unpack().into();
diff --git a/tests/src/tests.rs b/tests/src/tests.rs
index da4e7d7..50b26c0 100644
--- a/tests/src/tests.rs
+++ b/tests/src/tests.rs
@@ -1,10 +1,5 @@
 use super::*;
-use ckb_testtool::ckb_types::{
-    bytes::Bytes,
-    core::{TransactionBuilder},
-    packed::*,
-    prelude::*,
-};
+use ckb_testtool::ckb_types::{bytes::Bytes, core::TransactionBuilder, packed::*, prelude::*};
 use ckb_testtool::{builtin::ALWAYS_SUCCESS, context::Context};
 use helper::*;
 use molecule::prelude::*;