diff --git a/.github/workflows/black.yml b/.github/workflows/black.yml
deleted file mode 100644
index 0b86fd4..0000000
--- a/.github/workflows/black.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-name: Black
-
-on: [workflow_call]
-
-jobs:
-  black:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - uses: psf/black@stable
-      with:
-        options: "--check --verbose"
-        version: "24.1.1"
diff --git a/.github/workflows/branch.yml b/.github/workflows/branch.yml
index 1fa0ebc..83b166d 100644
--- a/.github/workflows/branch.yml
+++ b/.github/workflows/branch.yml
@@ -7,9 +7,7 @@ on:
       - '!main'  # ... that is not main
 
 jobs:
-  isort:
-    uses: ./.github/workflows/isort.yml
-  black:
-    uses: ./.github/workflows/black.yml
+  ruff:
+    uses: ./.github/workflows/ruff.yml
   build:
     uses: ./.github/workflows/build.yml
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3b7c54..c35e55f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,4 +30,4 @@ jobs:
           pip install .[test]
       - name: Run tests & coverage
         run: |
-          coverage run -p -m unittest discover -v -s ./tests
+          pytest .
diff --git a/.github/workflows/external_pr.yml b/.github/workflows/external_pr.yml
index bae7869..3a974ce 100644
--- a/.github/workflows/external_pr.yml
+++ b/.github/workflows/external_pr.yml
@@ -18,15 +18,11 @@ jobs:
         run: |
           echo "LOCAL_PR=${{ env.LOCAL_PR }}" >> $GITHUB_OUTPUT
 
-  isort:
+  ruff:
     needs: variables
     # if PR is external, trigger the tests on push or new PR
     if: ${{ needs.variables.outputs.LOCAL_PR == 'false'}}
-    uses: ./.github/workflows/isort.yml
-  black:
-    needs: variables
-    if: ${{ needs.variables.outputs.LOCAL_PR == 'false' }}
-    uses: ./.github/workflows/black.yml
+    uses: ./.github/workflows/ruff.yml
   build:
     needs: variables
     if: ${{ needs.variables.outputs.LOCAL_PR == 'false' }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e41f53c..b322ef3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -1,4 +1,4 @@
-name: Bump version, create release and deploy
+name: Build, test, deploy
 
 on:
   push:
@@ -7,15 +7,13 @@ on:
 
 
 jobs:
-  isort:
-    uses: ./.github/workflows/isort.yml
-  black:
-    uses: ./.github/workflows/black.yml
+  ruff:
+    uses: ./.github/workflows/ruff.yml
   build:
     uses: ./.github/workflows/build.yml
 
   bump:
-    needs: [isort, black, build]
+    needs: [ruff, build]
     runs-on: ubuntu-latest
     outputs:
       tag: ${{ steps.semver.outputs.next }}
@@ -23,7 +21,7 @@ jobs:
 
     steps:
       - name: Create Github token
-        uses: actions/create-github-app-token@v1
+        uses: actions/create-github-app-token@v2
         id: app-token
         with:
           app-id: ${{ vars.CODEGEN_APP_ID }}
@@ -49,7 +47,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Create Github token
-        uses: actions/create-github-app-token@v1
+        uses: actions/create-github-app-token@v2
         id: app-token
         with:
           app-id: ${{ vars.CODEGEN_APP_ID }}
@@ -92,7 +90,7 @@ jobs:
 
     steps:
       - name: Create Github token
-        uses: actions/create-github-app-token@v1
+        uses: actions/create-github-app-token@v2
         id: app-token
         with:
           app-id: ${{ vars.CODEGEN_APP_ID }}
@@ -144,7 +142,7 @@ jobs:
       id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
     steps:
       - name: Create Github token
-        uses: actions/create-github-app-token@v1
+        uses: actions/create-github-app-token@v2
         id: app-token
         with:
           app-id: ${{ vars.CODEGEN_APP_ID }}
@@ -165,11 +163,14 @@ jobs:
         with:
           python-version: 3.11
 
-      - name: Install dependencies and build dist
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+
+      - name: Build
         run: |
-          python -m pip install --upgrade pip
-          pip install build
-          python -m build
+          uv build
 
       - name: Publish package distributions to Test.PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          repository-url: https://test.pypi.org/legacy/
diff --git a/.github/workflows/isort.yml b/.github/workflows/ruff.yml
similarity index 62%
rename from .github/workflows/isort.yml
rename to .github/workflows/ruff.yml
index dc47108..4988d86 100644
--- a/.github/workflows/isort.yml
+++ b/.github/workflows/ruff.yml
@@ -1,10 +1,10 @@
-name: Isort
+name: Ruff
 
 on: [workflow_call]
 
 jobs:
-  isort:
+  ruff:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: isort/isort-action@master
+      - uses: astral-sh/ruff-action@v3
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 33153b1..ac2dc9c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,15 +2,15 @@ default_install_hook_types:
   - pre-commit
   - commit-msg
 repos:
-  - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 24.1.1
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    # Ruff version.
+    rev: v0.11.5
     hooks:
-      - id: black
-  - repo: https://github.com/pycqa/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-        name: isort (python)
+      # Run the linter.
+      - id: ruff
+        args: [ --fix ]
+      # Run the formatter.
+      - id: ruff-format
   - repo: https://github.com/compilerla/conventional-pre-commit
     rev: v3.3.0
     hooks:
diff --git a/README.md b/README.md
index 4104ec9..59841c5 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,5 @@
+[![Build Status](https://github.com/drodarie/test_actions/actions/workflows/build.yml/badge.svg?branch=main)](https://github.com/drodarie/test_actions/actions/workflows/build.yml?query=branch%3Amain)
+[![Ruff](https://github.com/drodarie/test_actions/actions/workflows/ruff.yml/badge.svg?branch=main)](https://github.com/drodarie/test_actions/actions/workflows/ruff.yml?query=branch%3Amain)
+
 # test_actions
 Test Github actions for python project
diff --git a/pyproject.toml b/pyproject.toml
index 494756f..3d70b21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
-requires = ["poetry-core>=2.0.0,<3.0.0"]
-build-backend = "poetry.core.masonry.api"
+requires = ["flit_core >=3.2,<4"]
+build-backend = "flit_core.buildapi"
 
 [project]
 name = "test-actions"
@@ -12,20 +12,46 @@ requires-python = ">=3.10"
 version = "1.3.0"
 dynamic = ["description"]
 dependencies = [
-    "numpy (>=2.2.3,<3.0.0)",
-    "scipy (>=1.15.2,<2.0.0)",
-    "pynrrd (>=1.1.3,<2.0.0)",
+    "numpy>=2.2.4",
+    "pynrrd>=1.1.3",
+    "scipy>=1.15.2",
 ]
 
 [project.optional-dependencies]
-test = ["coverage (>=7.6.12,<8.0.0)"]
-dev = ["black (>=25.1.0,<26.0.0)", "isort (>=6.0.0,<7.0.0)", "pre-commit (>=4.1.0,<5.0.0)", "bump-my-version (>=0.32.1,<0.33.0)"]
+test = [
+    "pytest>=8.3.5",
+    "pytest-cov>=6.1.1",
+    "pytest-sugar>=1.0.0",
+]
+dev = [
+    "pre-commit>=4.2.0",
+    "ruff>=0.11.5",
+]
 
-[tool.black]
+[tool.pytest.ini_options]
+addopts = """
+ --cov
+ --cov-report html:'cover/html'
+ --cov-report xml:'cover/coverage.xml'
+"""
+
+[tool.ruff]
+exclude = [".venv"]
 line-length = 100
+indent-width = 4
+
+[tool.ruff.lint]
+select = [ "E", "F", "UP", "B", "SIM", "I" ]
+ignore = [ ]
+fixable = [ "ALL" ]
+unfixable = [ ]
 
-[tool.isort]
-profile = "black"
+[tool.ruff.format]
+quote-style = "double"
+indent-style = "space"
+skip-magic-trailing-comma = false
+line-ending = "auto"
+docstring-code-line-length = "dynamic"
 
 [tool.bumpversion]
 current_version = "1.3.0"
diff --git a/test_actions/__init__.py b/test_actions/__init__.py
index 830e8bc..785614e 100644
--- a/test_actions/__init__.py
+++ b/test_actions/__init__.py
@@ -6,3 +6,6 @@
 
 import nrrd
 import numpy as np
+
+np.arange(0, 10, 0.1)
+print(nrrd.__version__)