diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 188a159..7957554 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,6 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v2
+      - uses: arduino/setup-task@v2
       - name: Create demo project
         run: |
           uvx cookiecutter --no-input --output-dir=var .
@@ -27,6 +28,4 @@ jobs:
           cd var/demo
           git init
           uv sync --python='${{ steps.setup-python.outputs.python-path }}'
-          uv run pytest
-          uv run make -C docs dirhtml
-          uvx pre-commit run --all-files
+          task verify
diff --git a/cookiecutter.json b/cookiecutter.json
index 1dfea4f..22e908f 100644
--- a/cookiecutter.json
+++ b/cookiecutter.json
@@ -8,5 +8,9 @@
   "author_name": "Kazuya Takei",
   "author_email": "myself@attakei.net",
   "version": "0.0.0",
-  "requires_python": ["3.9", "3.10", "3.11", "3.12"]
+  "requires_python": ["3.9", "3.10", "3.11", "3.12"],
+  "_copy_without_render": [
+    "Taskfile.yaml",
+    "**/Taskfile.yaml"
+  ]
 }
diff --git a/{{cookiecutter.project_basename}}/.github/workflows/main.yml b/{{cookiecutter.project_basename}}/.github/workflows/main.yml
index 5fb7dcc..90b34a4 100644
--- a/{{cookiecutter.project_basename}}/.github/workflows/main.yml
+++ b/{{cookiecutter.project_basename}}/.github/workflows/main.yml
@@ -64,10 +64,10 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v2
+      - uses: arduino/setup-task@v2
       - name: Run tests
         run: |
-          uv sync --frozen
-          uv run make -C docs linkcheck dirhtml
+          task setup docs:build-linkcheck docs:build-dirhtml
   build-test:
     runs-on: ubuntu-latest
     steps:
diff --git a/{{cookiecutter.project_basename}}/.github/workflows/release.yml b/{{cookiecutter.project_basename}}/.github/workflows/release.yml
index ab875b6..608ee7e 100644
--- a/{{cookiecutter.project_basename}}/.github/workflows/release.yml
+++ b/{{cookiecutter.project_basename}}/.github/workflows/release.yml
@@ -64,14 +64,14 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v2
-      - name: Run tests
+      - uses: arduino/setup-task@v2
+      - name: Build document
         run: |
-          uv sync --frozen
-          uv run make -C docs dirhtml
+          task setup docs:build
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
-          path: docs/_build/dirhtml
+          path: docs/_build/mini18n-dirhtml
       - name: Deploy to GitHub Pages
         id: deployment
         uses: actions/deploy-pages@v4
diff --git a/{{cookiecutter.project_basename}}/Taskfile.yaml b/{{cookiecutter.project_basename}}/Taskfile.yaml
new file mode 100644
index 0000000..0c230c9
--- /dev/null
+++ b/{{cookiecutter.project_basename}}/Taskfile.yaml
@@ -0,0 +1,30 @@
+version: '3'
+
+vars:
+  # If you run bare environment or activated venv, set '' (blank string)
+  RUN_PYTHON: 'uv run'
+
+tasks:
+  setup:
+    desc: 'Setup workspace'
+    cmds:
+      - 'uv sync --frozen'
+  verify:
+    desc: 'Verify environment by all procs'
+    cmds:
+      - 'uvx pre-commit run --all-files'
+      - '{{.RUN_PYTHON}} pytest'
+      - task: 'docs:intl'
+      - task: 'docs:build-linkcheck'
+      - task: 'docs:build-dirhtml'
+      - 'uv build'
+  release-*:
+    desc: 'Run elease process'
+    vars:
+      LEVEL: '{{index .MATCH 0}}'
+    cmds:
+      - 'age {{.LEVEL}}'
+      - 'uv sync'  # To write out as lock-file
+
+includes:
+  docs: './docs'
diff --git a/{{cookiecutter.project_basename}}/docs/Makefile b/{{cookiecutter.project_basename}}/docs/Makefile
deleted file mode 100644
index 9703516..0000000
--- a/{{cookiecutter.project_basename}}/docs/Makefile
+++ /dev/null
@@ -1,28 +0,0 @@
-# Minimal makefile for Sphinx documentation
-#
-
-# You can set these variables from the command line, and also
-# from the environment for the first two.
-SPHINXOPTS    ?=
-SPHINXBUILD   ?= sphinx-build
-SOURCEDIR     = .
-BUILDDIR      = _build
-
-# Put it first so that "make" without argument is like "make help".
-help:
-	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-
-.PHONY: help Makefile dev intl
-
-# Real-time build and local-server
-dev:
-	sphinx-autobuild -b dirhtml $(SOURCEDIR) $(BUILDDIR)/dirhtml $(O)
-
-intl:
-	@$(SPHINXBUILD) -M gettext "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
-	sphinx-intl update --language=ja
-
-# Catch-all target: route all unknown targets to Sphinx using the new
-# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
-%: Makefile
-	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
diff --git a/{{cookiecutter.project_basename}}/docs/Taskfile.yaml b/{{cookiecutter.project_basename}}/docs/Taskfile.yaml
new file mode 100644
index 0000000..d193c56
--- /dev/null
+++ b/{{cookiecutter.project_basename}}/docs/Taskfile.yaml
@@ -0,0 +1,44 @@
+version: '3'
+
+vars:
+  # If you run bare environment or activated venv, set '' (blank string)
+  # RUN_PYTHON: ''
+  SPHINX_DEFAULT_BUILD: 'mini18n-dirhtml'
+  SPHINX_OPTIONS: ''
+  SPHINX_LANGUAGES:
+    - 'ja'
+
+env:
+  SPHINXINTL_TRANSLATOR: "Kazuya Takei <myself@attakei.net>"
+
+tasks:
+  intl:
+    desc: 'Sync i18n environment'
+    dir: '{{.TASKFILE_DIR}}'
+    cmds:
+      - '{{.RUN_PYTHON}} sphinx-build -M gettext . _build {{.SPHINX_OPTIONS}}'
+      - '{{.RUN_PYTHON}} sphinx-intl update --language={{.SPHINX_LANGUAGES | join ","}}'
+  dev:
+    desc: 'Run docs server'
+    dir: '{{.TASKFILE_DIR}}'
+    cmds:
+      - '{{.RUN_PYTHON}} sphinx-autobuild -b dirhtml . _build/dirhtml'
+  build-*:
+    desc: 'Make docs'
+    dir: '{{.TASKFILE_DIR}}'
+    vars:
+      TARGET: '{{index .MATCH 0}}'
+    cmds:
+      - '{{.RUN_PYTHON}} sphinx-build -M {{.TARGET}} . _build'
+  build:
+    desc: 'Make docs (default target)'
+    deps:
+      - 'build-{{.SPHINX_DEFAULT_BUILD}}'
+  help:
+    desc: 'Display help of docs'
+    deps:
+      - 'build-help'
+  clean:
+    desc: 'Clean build files of docs'
+    deps:
+      - 'build-clean'
diff --git a/{{cookiecutter.project_basename}}/docs/make.bat b/{{cookiecutter.project_basename}}/docs/make.bat
deleted file mode 100644
index 32bb245..0000000
--- a/{{cookiecutter.project_basename}}/docs/make.bat
+++ /dev/null
@@ -1,35 +0,0 @@
-@ECHO OFF
-
-pushd %~dp0
-
-REM Command file for Sphinx documentation
-
-if "%SPHINXBUILD%" == "" (
-	set SPHINXBUILD=sphinx-build
-)
-set SOURCEDIR=.
-set BUILDDIR=_build
-
-%SPHINXBUILD% >NUL 2>NUL
-if errorlevel 9009 (
-	echo.
-	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
-	echo.installed, then set the SPHINXBUILD environment variable to point
-	echo.to the full path of the 'sphinx-build' executable. Alternatively you
-	echo.may add the Sphinx directory to PATH.
-	echo.
-	echo.If you don't have Sphinx installed, grab it from
-	echo.https://www.sphinx-doc.org/
-	exit /b 1
-)
-
-if "%1" == "" goto help
-
-%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
-goto end
-
-:help
-%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
-
-:end
-popd