diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
new file mode 100644
index 0000000000000..9a2fbd7542dad
--- /dev/null
+++ b/.github/dependabot.yaml
@@ -0,0 +1,7 @@
+version: 2
+updates:
+  - package-ecosystem: github-actions
+    directory: /
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 1
diff --git a/.github/workflows/build-and-test-differential.yaml b/.github/workflows/build-and-test-differential.yaml
new file mode 100644
index 0000000000000..6e8ebef574ed5
--- /dev/null
+++ b/.github/workflows/build-and-test-differential.yaml
@@ -0,0 +1,75 @@
+name: build-and-test-differential
+
+on:
+  pull_request:
+
+jobs:
+  build-and-test-differential:
+    runs-on: ubuntu-latest
+    container: ghcr.io/autowarefoundation/autoware-universe:latest
+    steps:
+      - name: Cancel previous runs
+        uses: styfle/cancel-workflow-action@0.9.1
+
+      - name: Check out repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Remove exec_depend
+        uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
+
+      - name: Get modified packages
+        id: get-modified-packages
+        uses: autowarefoundation/autoware-github-actions/get-modified-packages@tier4/proposal
+
+      - name: Build
+        if: ${{ steps.get-modified-packages.outputs.modified-packages != '' }}
+        uses: autowarefoundation/autoware-github-actions/colcon-build@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-modified-packages.outputs.modified-packages }}
+          build-depends-repos: build_depends.repos
+
+      - name: Test
+        id: test
+        if: ${{ steps.get-modified-packages.outputs.modified-packages != '' }}
+        uses: autowarefoundation/autoware-github-actions/colcon-test@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-modified-packages.outputs.modified-packages }}
+          build-depends-repos: build_depends.repos
+
+      - name: Upload coverage to CodeCov
+        if: ${{ steps.test.outputs.coverage-report-files != '' }}
+        uses: codecov/codecov-action@v2
+        with:
+          files: ${{ steps.test.outputs.coverage-report-files }}
+          fail_ci_if_error: false
+          verbose: true
+
+  clang-tidy-differential:
+    runs-on: ubuntu-latest
+    container: ros:galactic
+    needs: build-and-test-differential
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Remove exec_depend
+        uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
+
+      - name: Get modified packages
+        id: get-modified-packages
+        uses: autowarefoundation/autoware-github-actions/get-modified-packages@tier4/proposal
+
+      - name: Run clang-tidy
+        if: ${{ steps.get-modified-packages.outputs.modified-packages != '' }}
+        uses: autowarefoundation/autoware-github-actions/clang-tidy@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-modified-packages.outputs.modified-packages }}
+          clang-tidy-config-url: https://raw.githubusercontent.com/autowarefoundation/autoware/tier4/proposal/.clang-tidy
+          build-depends-repos: build_depends.repos
diff --git a/.github/workflows/build-and-test.yaml b/.github/workflows/build-and-test.yaml
new file mode 100644
index 0000000000000..1e422cc380f11
--- /dev/null
+++ b/.github/workflows/build-and-test.yaml
@@ -0,0 +1,48 @@
+name: build-and-test
+
+on:
+  push:
+  schedule:
+    - cron: 0 19 * * * # run at 4 AM JST
+  workflow_dispatch:
+
+jobs:
+  build-and-test:
+    if: ${{ github.event_name != 'push' || github.ref_name == github.event.repository.default_branch }}
+    runs-on: ubuntu-latest
+    container: ghcr.io/autowarefoundation/autoware-universe:latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Remove exec_depend
+        uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
+
+      - name: Get self packages
+        id: get-self-packages
+        uses: autowarefoundation/autoware-github-actions/get-self-packages@tier4/proposal
+
+      - name: Build
+        if: ${{ steps.get-self-packages.outputs.self-packages != '' }}
+        uses: autowarefoundation/autoware-github-actions/colcon-build@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-self-packages.outputs.self-packages }}
+          build-depends-repos: build_depends.repos
+
+      - name: Test
+        if: ${{ steps.get-self-packages.outputs.self-packages != '' }}
+        id: test
+        uses: autowarefoundation/autoware-github-actions/colcon-test@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-self-packages.outputs.self-packages }}
+          build-depends-repos: build_depends.repos
+
+      - name: Upload coverage to CodeCov
+        if: ${{ steps.test.outputs.coverage-report-files != '' }}
+        uses: codecov/codecov-action@v2
+        with:
+          files: ${{ steps.test.outputs.coverage-report-files }}
+          fail_ci_if_error: false
+          verbose: true
diff --git a/.github/workflows/check-build-depends.yaml b/.github/workflows/check-build-depends.yaml
new file mode 100644
index 0000000000000..d8f731787f4f0
--- /dev/null
+++ b/.github/workflows/check-build-depends.yaml
@@ -0,0 +1,31 @@
+name: check-build-depends
+
+on:
+  pull_request:
+    paths:
+      - build_depends.repos
+
+jobs:
+  check-build-depends:
+    runs-on: ubuntu-latest
+    container: ghcr.io/autowarefoundation/autoware-universe:latest
+    steps:
+      - name: Cancel previous runs
+        uses: styfle/cancel-workflow-action@0.9.1
+
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Remove exec_depend
+        uses: autowarefoundation/autoware-github-actions/remove-exec-depend@tier4/proposal
+
+      - name: Get self packages
+        id: get-self-packages
+        uses: autowarefoundation/autoware-github-actions/get-self-packages@tier4/proposal
+
+      - name: Build
+        uses: autowarefoundation/autoware-github-actions/colcon-build@tier4/proposal
+        with:
+          rosdistro: galactic
+          target-packages: ${{ steps.get-self-packages.outputs.self-packages }}
+          build-depends-repos: build_depends.repos
diff --git a/.github/workflows/pre-commit-optional.yaml b/.github/workflows/pre-commit-optional.yaml
new file mode 100644
index 0000000000000..50b6778a25c0a
--- /dev/null
+++ b/.github/workflows/pre-commit-optional.yaml
@@ -0,0 +1,16 @@
+name: pre-commit-optional
+
+on:
+  pull_request:
+
+jobs:
+  pre-commit-optional:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Run pre-commit
+        uses: autowarefoundation/autoware-github-actions/pre-commit@tier4/proposal
+        with:
+          pre-commit-config: .pre-commit-config-optional.yaml
diff --git a/.github/workflows/pre-commit.yaml b/.github/workflows/pre-commit.yaml
new file mode 100644
index 0000000000000..9eb501a19dac9
--- /dev/null
+++ b/.github/workflows/pre-commit.yaml
@@ -0,0 +1,16 @@
+name: pre-commit
+
+on:
+  pull_request:
+
+jobs:
+  pre-commit:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Run pre-commit
+        uses: autowarefoundation/autoware-github-actions/pre-commit@tier4/proposal
+        with:
+          pre-commit-config: .pre-commit-config.yaml
diff --git a/.github/workflows/semantic-pull-request.yaml b/.github/workflows/semantic-pull-request.yaml
new file mode 100644
index 0000000000000..0edf1946330d3
--- /dev/null
+++ b/.github/workflows/semantic-pull-request.yaml
@@ -0,0 +1,12 @@
+name: semantic-pull-request
+
+on:
+  pull_request_target:
+    types:
+      - opened
+      - edited
+      - synchronize
+
+jobs:
+  semantic-pull-request:
+    uses: autowarefoundation/autoware-github-actions/.github/workflows/semantic-pull-request.yaml@tier4/proposal
diff --git a/.github/workflows/spell-check-differential.yaml b/.github/workflows/spell-check-differential.yaml
new file mode 100644
index 0000000000000..1b5c52cb40ec4
--- /dev/null
+++ b/.github/workflows/spell-check-differential.yaml
@@ -0,0 +1,16 @@
+name: spell-check-differential
+
+on:
+  pull_request:
+
+jobs:
+  spell-check-differential:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Run spell-check
+        uses: autowarefoundation/autoware-github-actions/spell-check@tier4/proposal
+        with:
+          cspell-json-url: https://raw.githubusercontent.com/tier4/autoware-spell-check-dict/main/.cspell.json
diff --git a/.markdown-link-check.json b/.markdown-link-check.json
new file mode 100644
index 0000000000000..331095d38dd41
--- /dev/null
+++ b/.markdown-link-check.json
@@ -0,0 +1,10 @@
+{
+  "aliveStatusCodes": [200, 206, 403],
+  "ignorePatterns": [
+    {
+      "pattern": "^http://localhost"
+    }
+  ],
+  "retryOn429": true,
+  "retryCount": 10
+}
diff --git a/.markdownlint.yaml b/.markdownlint.yaml
new file mode 100644
index 0000000000000..dbd5b9703d834
--- /dev/null
+++ b/.markdownlint.yaml
@@ -0,0 +1,7 @@
+default: true
+MD013: false
+MD024:
+  siblings_only: true
+MD033: false
+MD041: false
+MD046: false
diff --git a/.pre-commit-config-optional.yaml b/.pre-commit-config-optional.yaml
new file mode 100644
index 0000000000000..e54ba1fdd5fdc
--- /dev/null
+++ b/.pre-commit-config-optional.yaml
@@ -0,0 +1,6 @@
+repos:
+  - repo: https://github.com/tcort/markdown-link-check
+    rev: v3.9.3
+    hooks:
+      - id: markdown-link-check
+        args: [--config=.markdown-link-check.json]
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 0000000000000..a3c34d00a1377
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,2 @@
+*.param.yaml
+*.rviz
diff --git a/.prettierrc.yaml b/.prettierrc.yaml
new file mode 100644
index 0000000000000..48b0552e3fe47
--- /dev/null
+++ b/.prettierrc.yaml
@@ -0,0 +1,2 @@
+printWidth: 100
+tabWidth: 2
diff --git a/.yamllint.yaml b/.yamllint.yaml
new file mode 100644
index 0000000000000..6228c70f02da9
--- /dev/null
+++ b/.yamllint.yaml
@@ -0,0 +1,23 @@
+extends: default
+
+ignore: |
+  .clang-tidy
+  *.param.yaml
+
+rules:
+  braces:
+    level: error
+    max-spaces-inside: 1 # To format with Prettier
+  comments:
+    level: error
+    min-spaces-from-content: 1 # To be compatible with C++ and Python
+  document-start:
+    level: error
+    present: false # Don't need document start markers
+  line-length: disable # Delegate to Prettier
+  truthy:
+    level: error
+    check-keys: false # To allow 'on' of GitHub Actions
+  quoted-strings:
+    level: error
+    required: only-when-needed # To keep consistent style
diff --git a/setup.cfg b/setup.cfg
new file mode 100644
index 0000000000000..fd61ed536ebc4
--- /dev/null
+++ b/setup.cfg
@@ -0,0 +1,15 @@
+[flake8]
+# Modified from https://github.com/ament/ament_lint/blob/ebd524bb9973d5ec1dc48a670ce54f958a5a0243/ament_flake8/ament_flake8/configuration/ament_flake8.ini
+extend-ignore = B902,C816,D100,D101,D102,D103,D104,D105,D106,D107,D203,D212,D404,I202,CNL100,E203,E501,Q000
+import-order-style = google
+max-line-length = 100
+show-source = true
+statistics = true
+
+[isort]
+profile=black
+line_length=100
+force_sort_within_sections=true
+force_single_line=true
+reverse_relative=true
+known_third_party=launch