diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..bc84ccc
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,86 @@
+name: Tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+# re-enable whenever it works!
+#  schedule:
+#    - cron: '0 6 * * *'
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          # got "ERROR tests/test_low.py - OSError: Unable to find libfuse"
+          # - windows-2019
+          - ubuntu-latest
+          # got "installer: Error - The FUSE for macOS installation package is not compatible with this version of macOS."
+          # from osxfuse
+          # - macos-latest
+          # get "Error: The operation was canceled." after PASSED test, odd
+          # - macos-11
+
+        python:
+          - 3.7
+          - 3.8
+          - 3.9
+          - '3.10'  # Needs quotes so YAML doesn't think it's 3.1
+          - '3.11'
+
+    steps:
+    - name: Set up environment
+      uses: actions/checkout@v3
+
+    - name: Set up Python ${{ matrix.python }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python }}
+
+    - name: Install Python dependencies and refuse itself
+      run: |
+        python -m pip install --upgrade pip wheel
+        pip install ".[dev]"
+
+    - name: Install FUSE (Linux)
+      if: startsWith(matrix.os, 'ubuntu')
+      run: |
+        sudo apt-get update -qq
+        sudo eatmydata apt-get install -y fuse
+
+    - name: Install OSXFUSE (MacOS)
+      if: startsWith(matrix.os, 'macos')
+      run: |
+        brew update
+        brew install osxfuse
+
+    - name: Install WinFsp (Windows)
+      if: startsWith(matrix.os, 'windows')
+      shell: pwsh
+      run: |
+        $url = 'https://github.com/winfsp/winfsp/releases/download/v2.0/winfsp-2.0.23075.msi'
+        Invoke-WebRequest -Uri $url -OutFile 'winfsp.msi'
+        Start-Process msiexec.exe -ArgumentList '/i', 'winfsp.msi', '/quiet', '/norestart' -Wait
+
+    - name: Run all tests
+      run: |
+        python -m pytest -s -v --cov=refuse --cov-report=xml --pyargs refuse
+
+    # enable later
+    #- name: Upload coverage to Codecov
+    #  uses: codecov/codecov-action@v3
+    #  with:
+    #    token: ${{ secrets.CODECOV_TOKEN }}
+    #    file: ./coverage.xml
+    #    flags: unittests
+    #    # name: codecov-umbrella
+    #    # yml: ./codecov.yml
+    #    fail_ci_if_error: false
diff --git a/setup.py b/setup.py
index 127705b..a1816d7 100644
--- a/setup.py
+++ b/setup.py
@@ -38,11 +38,11 @@
 # +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
 # BUMP VERSION HERE!
-_version_ = '0.0.4'
+_version_ = '0.0.5'
 
 # List all versions of Python which are supported
-python_minor_min = 5
-python_minor_max = 8
+python_minor_min = 7
+python_minor_max = 11
 confirmed_python_versions = [
     'Programming Language :: Python :: 3.{MINOR:d}'.format(MINOR = minor)
     for minor in range(python_minor_min, python_minor_max + 1)
@@ -56,6 +56,7 @@
 development_deps_list = [
     'coverage',
     'pytest',
+    'pytest-cov',
     'python-language-server[all]',
     'setuptools',
     'Sphinx',
diff --git a/src/refuse/_refactor.py b/src/refuse/_refactor.py
index ca97b01..933e163 100644
--- a/src/refuse/_refactor.py
+++ b/src/refuse/_refactor.py
@@ -10,7 +10,7 @@
 
     THIS FILE IS TEMPORARY AND WILL BE REMOVED!
 
-    Copyright (C) 2008-2020 refuse contributors
+    Copyright (C) 2008-2023 refuse contributors
 
 <LICENSE_BLOCK>
 The contents of this file are subject to the Internet Systems Consortium (ISC)
@@ -32,6 +32,7 @@
 # +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
 import os
+import sys
 import ctypes
 from ctypes.util import find_library
 
diff --git a/src/refuse/tests/__init__.py b/src/refuse/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/src/refuse/tests/test_high.py b/src/refuse/tests/test_high.py
new file mode 100644
index 0000000..d9125fa
--- /dev/null
+++ b/src/refuse/tests/test_high.py
@@ -0,0 +1,5 @@
+from ..high import FUSE, Operations
+
+
+def test_FUSE():
+    pass  # for now just that we manage to import it ;)
diff --git a/src/refuse/tests/test_low.py b/src/refuse/tests/test_low.py
new file mode 100644
index 0000000..3ed07ff
--- /dev/null
+++ b/src/refuse/tests/test_low.py
@@ -0,0 +1,26 @@
+import ctypes
+from ..low import FUSELL, LibFUSE, fuse_args
+
+import pytest
+
+
+@pytest.fixture
+def fusell(tmp_path):
+    yield FUSELL(str(tmp_path))
+
+
+def test_LibFUSE_mount_unmount(tmp_path):
+    lib = LibFUSE()
+    args = ['fuse']
+    # worth moving into helper to be reused here
+    argv = fuse_args(len(args), (ctypes.c_char_p * len(args))(*[arg.encode() for arg in args]), 0)
+    chan = lib.fuse_mount(str(tmp_path).encode(), argv)
+    lib.fuse_unmount(str(tmp_path).encode(), chan)
+
+
+#
+# likely fusell needs its own thread
+#
+#def test_nothing_much(fusell):
+#    assert str(fusell)
+#    assert repr(fusell)