diff --git a/.github/workflows/_check-pip-compile-sync.yml b/.github/workflows/_check-pip-compile-sync.yml
index ebcf27d..e58e4ef 100644
--- a/.github/workflows/_check-pip-compile-sync.yml
+++ b/.github/workflows/_check-pip-compile-sync.yml
@@ -19,7 +19,4 @@ jobs:
       - uses: actions/checkout@v4
       - uses: deargen/workflows/actions/check-pip-compile@master
         with:
-          cwd: python-projector
-          pyproject-toml-file: pyproject.toml
-          requirements-in-dir: deps
-          requirements-out-dir: deps/lock
+          project-dir: python-projector
diff --git a/.github/workflows/_deploy.yml b/.github/workflows/_deploy.yml
index 45f9a83..3d0ec1c 100644
--- a/.github/workflows/_deploy.yml
+++ b/.github/workflows/_deploy.yml
@@ -35,5 +35,6 @@ jobs:
       - uses: deargen/workflows/actions/setup-python-and-uv@master
       - name: Build and upload to PyPI
         run: |
+          cd python-projector
           uv build --sdist
           uv publish
diff --git a/README.md b/README.md
index cd4ac0f..31f64a3 100644
--- a/README.md
+++ b/README.md
@@ -23,17 +23,17 @@ jobs:
     uses: deargen/workflows/.github/workflows/check-ruff.yml@master
     with:
       check-type: format
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
   ruff-isort:
     uses: deargen/workflows/.github/workflows/check-ruff.yml@master
     with:
       check-type: isort
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
   ruff-lint:
     uses: deargen/workflows/.github/workflows/check-ruff.yml@master
     with:
       check-type: lint 
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
 ```
 
 ### Style checking for changed files only
@@ -52,17 +52,17 @@ jobs:
     uses: deargen/workflows/.github/workflows/check-ruff-only-changed.yml@master
     with:
       check-type: format
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
   ruff-isort-on-changes:
     uses: deargen/workflows/.github/workflows/check-ruff-only-changed.yml@master
     with:
       check-type: isort
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
   ruff-lint-on-changes:
     uses: deargen/workflows/.github/workflows/check-ruff-only-changed.yml@master
     with:
       check-type: lint
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
 ```
 
 
@@ -87,7 +87,7 @@ jobs:
     with:
       ruff-select: ${{ github.event.inputs.ruff-select }}
       ruff-ignore: ${{ github.event.inputs.ruff-ignore }}
-      ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
+      # ruff-version-file: deps/lock/x86_64-manylinux_2_28/requirements_dev.txt
 ```
 
 ## Cargo clippy and fmt checking for Rust projects
@@ -117,6 +117,8 @@ jobs:
 
 ## Compiling requirements.txt (generate locked versions)
 
+This uses `projector pip-compile` command thus requires configuring `pyproject.toml` file accordingly. See [python-projector](python-projector) for more information.
+
 ### Check uv pip compile
 
 ```yaml
@@ -135,11 +137,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: deargen/workflows/actions/check-pip-compile@master
-        with:
-          pyproject-toml-file: pyproject.toml
-          requirements-in-dir: deps
-          requirements-out-dir: deps/lock
-          python-platforms: x86_64-manylinux_2_28,aarch64-apple-darwin,x86_64-apple-darwin
 ```
 
 ### Apply uv pip compile
@@ -156,11 +153,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: deargen/workflows/actions/apply-pip-compile@master
-        with:
-          pyproject-toml-file: pyproject.toml
-          requirements-in-dir: deps
-          requirements-out-dir: deps/lock
-          python-platforms: x86_64-manylinux_2_28,aarch64-apple-darwin,x86_64-apple-darwin
 ```
 
 ## mkdocs build
diff --git a/actions/apply-pip-compile/action.yml b/actions/apply-pip-compile/action.yml
index e58180a..e5569ff 100644
--- a/actions/apply-pip-compile/action.yml
+++ b/actions/apply-pip-compile/action.yml
@@ -3,36 +3,50 @@ description: Freeze dependencies using uv pip compile
 author: Kiyoon Kim
 
 inputs:
+  project-dir:
+    description: Directory to search pyproject.toml. Default is the root directory.
+    required: false
   pyproject-toml-file:
     description: Path to pyproject.toml file for getting the minimum python version
-    required: true
-    default: pyproject.toml
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the pyproject.toml file in the directory.
   requirements-in-dir:
     description: Directory to search all requirements*.in files
-    required: true
-    default: deps
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
   requirements-out-dir:
     description: Directory to save compiled requirements*.txt files
-    required: true
-    default: deps/lock
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
   python-platforms:
     description: Platforms to support (comma-separated)
-    required: true
-    default: x86_64-manylinux_2_28,aarch64-apple-darwin,x86_64-apple-darwin,x86_64-pc-windows-msvc
-  cwd:
-    description: 'The directory to run uv (and the whole script) in'
     required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
 
 runs:
   using: 'composite'
   steps:
-    - shell: bash
+    - name: Check deprecated inputs
+      shell: bash
       run: |
-        if [[ -n "${{ inputs.cwd }}" ]]; then
-          cd "${{ inputs.cwd }}"
+        if [[ -n "${{ inputs.pyproject-toml-file }}" ]]; then
+          echo "The input 'pyproject-toml-file' is deprecated." >> "$GITHUB_STEP_SUMMARY"
         fi
-        echo "min_python_version=$(python3 ${{ github.action_path }}/../../scripts/get_min_python_version.py "${{ inputs.pyproject-toml-file }}")" >> "$GITHUB_OUTPUT"
-        pip3 install uv --break-system-packages
+        if [[ -n "${{ inputs.requirements-in-dir }}" ]]; then
+          echo "The input 'requirements-in-dir' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+        if [[ -n "${{ inputs.requirements-out-dir }}" ]]; then
+          echo "The input 'requirements-out-dir' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+        if [[ -n "${{ inputs.python-platforms }}" ]]; then
+          echo "The input 'python-platforms' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+    - name: Install uv
+      uses: astral-sh/setup-uv@v4
+    - shell: bash
+      run: |
+        uv tool install ${{ github.action_path }}/../../python-projector
+        echo "min_python_version=$(projector get-min-python-version ${{ inputs.project-dir }})" >> "$GITHUB_OUTPUT"
       id: get-python-version
     - name: Set up Python
       uses: actions/setup-python@v5
@@ -42,14 +56,18 @@ runs:
       name: Run uv pip compile and push
       run: |
         # set +e  # Do not exit shell on failure
-        if [[ -n "${{ inputs.cwd }}" ]]; then
-          cd "${{ inputs.cwd }}"
+        if [[ -n "${{ inputs.project-dir }}" ]]; then
+          projector pip-compile ${{ inputs.project-dir }}
+        elif [[ -z "${{ inputs.requirements-in-dir }}" ]]; then
+          projector pip-compile
+        else
+          # deprecated inputs
+          bash ${{ github.action_path }}/../../scripts/compile_requirements.sh \
+            "${{ inputs.requirements-in-dir }}" \
+            "${{ inputs.requirements-out-dir }}" \
+            "${{ steps.get-python-version.outputs.min_python_version }}" \
+            "${{ inputs.python-platforms }}"
         fi
-        bash ${{ github.action_path }}/../../scripts/compile_requirements.sh \
-          "${{ inputs.requirements-in-dir }}" \
-          "${{ inputs.requirements-out-dir }}" \
-          "${{ steps.get-python-version.outputs.min_python_version }}" \
-          "${{ inputs.python-platforms }}"
         git config user.name github-actions[bot]
         git config user.email github-actions[bot]@users.noreply.github.com
         git add .
diff --git a/actions/check-pip-compile/action.yml b/actions/check-pip-compile/action.yml
index 505fa4e..c048573 100644
--- a/actions/check-pip-compile/action.yml
+++ b/actions/check-pip-compile/action.yml
@@ -3,36 +3,50 @@ description: Detect changes in requirements*.in files that are not compiled yet
 author: Kiyoon Kim
 
 inputs:
+  project-dir:
+    description: Directory to search pyproject.toml. Default is the root directory.
+    required: false
   pyproject-toml-file:
     description: Path to pyproject.toml file for getting the minimum python version
-    required: true
-    default: pyproject.toml
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the pyproject.toml file in the directory.
   requirements-in-dir:
     description: Directory to search all requirements*.in files
-    required: true
-    default: deps
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
   requirements-out-dir:
     description: Directory to save compiled requirements*.txt files
-    required: true
-    default: deps/lock
+    required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
   python-platforms:
     description: Platforms to support (comma-separated)
-    required: true
-    default: x86_64-manylinux_2_28,aarch64-apple-darwin,x86_64-apple-darwin,x86_64-pc-windows-msvc
-  cwd:
-    description: 'The directory to run uv (and the whole script) in'
     required: false
+    deprecationMessage: Use project-dir instead. It will read the configuration in pyproject.toml.
 
 runs:
   using: 'composite'
   steps:
-    - shell: bash
+    - name: Check deprecated inputs
+      shell: bash
       run: |
-        if [[ -n "${{ inputs.cwd }}" ]]; then
-          cd "${{ inputs.cwd }}"
+        if [[ -n "${{ inputs.pyproject-toml-file }}" ]]; then
+          echo "The input 'pyproject-toml-file' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+        if [[ -n "${{ inputs.requirements-in-dir }}" ]]; then
+          echo "The input 'requirements-in-dir' is deprecated." >> "$GITHUB_STEP_SUMMARY"
         fi
-        echo "min_python_version=$(python3 ${{ github.action_path }}/../../scripts/get_min_python_version.py "${{ inputs.pyproject-toml-file }}")" >> "$GITHUB_OUTPUT"
-        pip3 install uv --break-system-packages
+        if [[ -n "${{ inputs.requirements-out-dir }}" ]]; then
+          echo "The input 'requirements-out-dir' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+        if [[ -n "${{ inputs.python-platforms }}" ]]; then
+          echo "The input 'python-platforms' is deprecated." >> "$GITHUB_STEP_SUMMARY"
+        fi
+    - name: Install uv
+      uses: astral-sh/setup-uv@v4
+    - shell: bash
+      run: |
+        uv tool install ${{ github.action_path }}/../../python-projector
+        echo "min_python_version=$(projector get-min-python-version ${{ inputs.project-dir }})" >> "$GITHUB_OUTPUT"
       id: get-python-version
     - name: Set up Python
       uses: actions/setup-python@v5
@@ -43,15 +57,18 @@ runs:
       run: |
         set +e  # Do not exit shell on failure
 
-        if [[ -n "${{ inputs.cwd }}" ]]; then
-          cd "${{ inputs.cwd }}"
+        if [[ -n "${{ inputs.project-dir }}" ]]; then
+          out=$(projector pip-compile ${{ inputs.project-dir }} 2> _stderr.txt)
+        elif [[ -z "${{ inputs.requirements-in-dir }}" ]]; then
+          out=$(projector pip-compile 2> _stderr.txt)
+        else
+          # deprecated inputs
+          out=$(bash ${{ github.action_path }}/../../scripts/compile_requirements.sh \
+            "${{ inputs.requirements-in-dir }}" \
+            "${{ inputs.requirements-out-dir }}" \
+            "${{ steps.get-python-version.outputs.min_python_version }}" \
+            "${{ inputs.python-platforms }}" 2> _stderr.txt)
         fi
-
-        out=$(bash ${{ github.action_path }}/../../scripts/compile_requirements.sh \
-          "${{ inputs.requirements-in-dir }}" \
-          "${{ inputs.requirements-out-dir }}" \
-          "${{ steps.get-python-version.outputs.min_python_version }}" \
-          "${{ inputs.python-platforms }}" 2> _stderr.txt)
         exit_code=$?
         err=$(<_stderr.txt)
 
diff --git a/python-projector/pyproject.toml b/python-projector/pyproject.toml
index 63fede7..2683b1d 100644
--- a/python-projector/pyproject.toml
+++ b/python-projector/pyproject.toml
@@ -19,11 +19,13 @@ authors = [
 ]
 readme = "README.md"
 license = { file = "LICENSE" }
-requires-python = ">=3.13,<4"
+requires-python = ">=3.11,<4"
 classifiers = [
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
+  "Programming Language :: Python :: 3.11",
+  "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "License :: OSI Approved :: Apache Software License",
 ]
@@ -42,7 +44,7 @@ license-files = []
 dependencies = {file = ["deps/requirements.in"]}
 
 [tool.setuptools.package-data]
-python_projector = ["template.env"]  # CHANGE (name of the importing module name)
+python_projector = ["shell/*.sh"]  # CHANGE (name of the importing module name)
 
 [tool.setuptools.packages.find]
 where = ["src"]
@@ -72,7 +74,7 @@ typeCheckingMode = "standard"
 useLibraryCodeForTypes = true
 autoImportCompletions = true
 
-pythonVersion = "3.13"
+pythonVersion = "3.11"
 # pythonPlatform = "Linux"
 
 reportDuplicateImport = true
diff --git a/python-projector/src/python_projector/cli/main.py b/python-projector/src/python_projector/cli/main.py
index e000db0..f783da0 100644
--- a/python-projector/src/python_projector/cli/main.py
+++ b/python-projector/src/python_projector/cli/main.py
@@ -7,10 +7,7 @@
 from pathlib import Path
 from typing import Annotated
 
-import rich
 import typer
-from rich.prompt import Prompt
-from rich.syntax import Syntax
 
 app = typer.Typer(
     no_args_is_help=True, context_settings={"help_option_names": ["-h", "--help"]}