diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..ab94684
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,17 @@
+# EditorConfig helps developers define and maintain consistent coding styles between different editors and IDEs
+
+# Top-most EditorConfig file
+root = true
+
+# Python files
+[*.py]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.{yaml,json}]
+indent_style = space
+indent_size = 2
\ No newline at end of file
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..845549d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1,5 @@
+use flake
+dotenv
+
+# https://python-poetry.org/docs/basic-usage/#activating-the-virtual-environment
+source $(poetry env info --path)/bin/activate
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
new file mode 100644
index 0000000..c5b2737
--- /dev/null
+++ b/.github/workflows/ci.yaml
@@ -0,0 +1,50 @@
+---
+name: "CI"
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - "*"
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 2
+
+      # https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#caching-packages
+      - name: Install poetry
+        run: pipx install poetry
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: poetry
+
+      - name: Install dependencies
+        run: poetry install
+
+      # https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python#using-ruff-to-lint-code
+      - name: Ruff
+        run: poetry run ruff --output-format=github .
+        continue-on-error: true
+
+      - name: Mypy
+        run: poetry run mypy .
+
+      # https://github.com/codecov/example-python
+      - name: Pytest
+        run: poetry run pytest --cov=src --cov-report=xml
+
+      # - name: Compile Vertex Pipeline
+      #   run: python -m src.dazai_bert_pipeline.compile
+
+      - name: Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..da110b7
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,16 @@
+{
+  "files.exclude": {
+    ".venv": true,
+    ".mypy_cache": true,
+    ".ruff_cache": true,
+    ".pytest_cache": true,
+    "**/*.egg-info": true,
+    "**/__pycache__": true
+  },
+  "[python]": {
+    "editor.defaultFormatter": "charliermarsh.ruff",
+    "editor.codeActionsOnSave": {
+      "source.fixAll": "always"
+    }
+  }
+}
diff --git a/README.md b/README.md
index 8d6f1ca..c126869 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,4 @@
-# ainu-llm
\ No newline at end of file
+# ainu-nlp
+
+[![CI](https://github.com/aynumosir/ainu-nlp/actions/workflows/ci.yaml/badge.svg)](https://github.com/aynumosir/ainu-nlp/actions/workflows/ci.yaml)
+[![codecov](https://codecov.io/gh/aynumosir/ainu-nlp/graph/badge.svg?token=K8CFQ0UBPN)](https://codecov.io/gh/aynumosir/ainu-nlp)
diff --git a/flake.lock b/flake.lock
new file mode 100644
index 0000000..535b53e
--- /dev/null
+++ b/flake.lock
@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1710765496,
+        "narHash": "sha256-p7ryWEeQfMwTB6E0wIUd5V2cFTgq+DRRBz2hYGnJZyA=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "e367f7a1fb93137af22a3908f00b9a35e2d286a7",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}
diff --git a/flake.nix b/flake.nix
new file mode 100644
index 0000000..04d8196
--- /dev/null
+++ b/flake.nix
@@ -0,0 +1,20 @@
+{
+  description = "A very basic flake";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, nixpkgs }: let
+    pkgs = nixpkgs.legacyPackages.aarch64-darwin;
+  in
+  {
+    devShell.aarch64-darwin = pkgs.mkShell {
+      buildInputs = with pkgs; [
+        python311
+        poetry
+        # google-cloud-sdk
+      ];
+    };
+  };
+}
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..ea8b725
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,250 @@
+# This file is automatically @generated by Poetry 1.8.2 and should not be changed by hand.
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
+[[package]]
+name = "coverage"
+version = "7.4.4"
+description = "Code coverage measurement for Python"
+optional = false
+python-versions = ">=3.8"
+files = [
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+]
+
+[package.extras]
+toml = ["tomli"]
+
+[[package]]
+name = "iniconfig"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[[package]]
+name = "mypy"
+version = "1.9.0"
+description = "Optional static typing for Python"
+optional = false
+python-versions = ">=3.8"
+files = [
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+[package.extras]
+dmypy = ["psutil (>=4.0)"]
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+mypyc = ["setuptools (>=50)"]
+reports = ["lxml"]
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+[[package]]
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+optional = false
+python-versions = ">=3.5"
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+python-versions = ">=3.7"
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+optional = false
+python-versions = ">=3.8"
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+testing = ["pytest", "pytest-benchmark"]
+
+[[package]]
+name = "pytest"
+version = "8.1.1"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.8"
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+iniconfig = "*"
+packaging = "*"
+pluggy = ">=1.4,<2.0"
+
+[package.extras]
+testing = ["argcomplete", "attrs (>=19.2)", "hypothesis (>=3.56)", "mock", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
+[[package]]
+name = "pytest-cov"
+version = "4.1.0"
+description = "Pytest plugin for measuring coverage."
+optional = false
+python-versions = ">=3.7"
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+coverage = {version = ">=5.2.1", extras = ["toml"]}
+pytest = ">=4.6"
+
+[package.extras]
+testing = ["fields", "hunter", "process-tests", "pytest-xdist", "six", "virtualenv"]
+
+[[package]]
+name = "ruff"
+version = "0.3.3"
+description = "An extremely fast Python linter and code formatter, written in Rust."
+optional = false
+python-versions = ">=3.7"
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+[[package]]
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+description = "Backported and Experimental Type Hints for Python 3.8+"
+optional = false
+python-versions = ">=3.8"
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+    {file = "typing_extensions-4.10.0.tar.gz", hash = "sha256:b0abd7c89e8fb96f98db18d86106ff1d90ab692004eb746cf6eda2682f91b3cb"},
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+[metadata]
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diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..03f3e9c
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,30 @@
+[tool.poetry]
+name = "ainu-nlp"
+version = "0.1.0"
+description = ""
+authors = ["Ryo Igarashi <n33t5hin@gmail.com>"]
+license = "MIT"
+readme = "README.md"
+package-mode = false
+
+[tool.poetry.dependencies]
+python = "^3.11"
+
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^8.1.1"
+pytest-cov = "^4.1.0"
+ruff = "^0.3.3"
+mypy = "^1.9.0"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+
+[tool.mypy]
+ignore_missing_imports = true
+exclude = ["dazai_bert_pipeline"]
+
+[tool.ruff.lint]
+select = ["E4", "E7", "E9", "F", "I", "ANN"]
+ignore = ["ANN101", "ANN102"]
diff --git a/src/ainu_nlp_pipeline/__init__.py b/src/ainu_nlp_pipeline/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/ainu_nlp_pipeline/add.py b/src/ainu_nlp_pipeline/add.py
new file mode 100644
index 0000000..c040ba4
--- /dev/null
+++ b/src/ainu_nlp_pipeline/add.py
@@ -0,0 +1,2 @@
+def add(x: int, y: int) -> int:
+    return x + y
diff --git a/src/ainu_nlp_pipeline/add_test.py b/src/ainu_nlp_pipeline/add_test.py
new file mode 100644
index 0000000..20c9aa9
--- /dev/null
+++ b/src/ainu_nlp_pipeline/add_test.py
@@ -0,0 +1,5 @@
+from .add import add
+
+
+def test_add() -> None:
+    assert add(1, 2) == 3
diff --git a/src/ainu_nlp_trainer/__init__.py b/src/ainu_nlp_trainer/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/ainu_nlp_trainer/add.py b/src/ainu_nlp_trainer/add.py
new file mode 100644
index 0000000..c040ba4
--- /dev/null
+++ b/src/ainu_nlp_trainer/add.py
@@ -0,0 +1,2 @@
+def add(x: int, y: int) -> int:
+    return x + y
diff --git a/src/ainu_nlp_trainer/add_test.py b/src/ainu_nlp_trainer/add_test.py
new file mode 100644
index 0000000..20c9aa9
--- /dev/null
+++ b/src/ainu_nlp_trainer/add_test.py
@@ -0,0 +1,5 @@
+from .add import add
+
+
+def test_add() -> None:
+    assert add(1, 2) == 3