diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 00000000..0582f36c
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,68 @@
+name: LOBSTER CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+
+permissions:
+  contents: read
+
+jobs:
+  lint:
+    name: PyLint
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install dependencies
+        run: |
+          python3 -m pip install --upgrade pip
+          python3 -m pip install -r requirements_dev.txt
+          make lobster/html/assets.py
+      - name: Executing Linter
+        run: |
+          make lint
+  test:
+    name: TestSuite
+    needs: lint
+    if: success()
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-13, macos-14]
+        py-version: ["3.8", "3.9", "3.10", "3.11"]
+        include:
+          - os: macos-13
+            brew: "/usr/local"
+          - os: macos-14
+            brew: "/opt/homebrew"
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install python version
+        if: matrix.os != 'macos-14' || matrix.py-version == '3.10' || matrix.py-version == '3.11' || matrix.py-version == '3.12'
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.py-version }}
+      - name: Install python (3.8, 3.9) on macOS-arm64
+        if: matrix.os == 'macos-14' && (matrix.py-version == '3.8' || matrix.py-version == '3.9')
+        run: |
+          brew install python@${{ matrix.py-version }}
+          echo "${{ matrix.brew }}/opt/python@${{ matrix.py-version }}/libexec/bin" >> $GITHUB_PATH
+          curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
+          python${{ matrix.py-version }} get-pip.py
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -r requirements.txt
+      - name: Install GNU Make on macOS
+        if: startsWith(matrix.os, 'macos')
+        run: |
+          brew install make
+          echo "${{ matrix.brew }}/opt/make/libexec/gnubin" >> $GITHUB_PATH
+      - name: Executing System Tests
+        run: |
+          make system-tests
+      - name: Executing Unit Tests
+        run: |
+          make unit-tests
diff --git a/Makefile b/Makefile
index 05d6a805..fa4eccc7 100644
--- a/Makefile
+++ b/Makefile
@@ -40,37 +40,37 @@ packages:
 	diff -Naur test_install/lib/python*/site-packages/lobster test_install_monolithic/lib/python*/site-packages/lobster -x "*.pyc"
 	diff -Naur test_install/bin test_install_monolithic/bin
 
-integration_tests: packages
+integration-tests: packages
 	(cd integration-tests/projects/basic; make)
 	(cd integration-tests/projects/filter; make)
 
-system_tests:
+system-tests:
 	make -B -C test-system/lobster-json
 	make -B -C test-system/lobster-python
 
-unit_tests:
+unit-tests:
 	python3 -m unittest discover -s test-unit -v
 
-test: integration_tests system_tests unit_tests
+test: integration-tests system-tests unit-tests
 
-upload_main: packages
+upload-main: packages
 	python3 -m twine upload --repository pypi packages/*/dist/*
 	python3 -m twine upload --repository pypi packages/*/meta_dist/*
 
-remove_dev:
+remove-dev:
 	python3 -m util.release
 
-github_release:
+github-release:
 	git push
 	python3 -m util.github_release
 
 bump:
 	python3 -m util.bump_version_post_release
 
-full_release:
-	make remove_dev
+full-release:
+	make remove-dev
 	git push
-	make upload_main
-	make github_release
+	make upload-main
+	make github-release
 	make bump
 	git push
diff --git a/lobster/io.py b/lobster/io.py
index dea829a5..48e2fa4f 100644
--- a/lobster/io.py
+++ b/lobster/io.py
@@ -114,7 +114,7 @@ def lobster_read(mh, filename, level, items, source_info=None):
 
         if source_info is not None:
             item.perform_source_checks(source_info)
-    
+
             # evaluate source_info filters
             for f, v in source_info['filters']:
                 if f == 'prefix':
@@ -125,9 +125,9 @@ def lobster_read(mh, filename, level, items, source_info=None):
         if all(filter_conditions):
             if item.tag.key() in items:
                 mh.error(item.location,
-                        "duplicate definition of %s, "
-                        "previously defined at %s" %
-                        (item.tag.key(),
-                        items[item.tag.key()].location.to_string()))
+                            "duplicate definition of %s, "
+                            "previously defined at %s" %
+                            (item.tag.key(),
+                                items[item.tag.key()].location.to_string()))
 
             items[item.tag.key()] = item
diff --git a/lobster/tools/json/json.py b/lobster/tools/json/json.py
index 27fe011b..b4317dbd 100755
--- a/lobster/tools/json/json.py
+++ b/lobster/tools/json/json.py
@@ -18,7 +18,6 @@
 # <https://www.gnu.org/licenses/>.
 
 import sys
-import os.path
 import json
 from pathlib import PurePath
 from pprint import pprint
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..ce3b7498
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,3 @@
+trlc>=1.2.2
+requests>=2.31.0
+libcst>=1.1.0
diff --git a/requirements_dev.txt b/requirements_dev.txt
new file mode 100644
index 00000000..d7bb926f
--- /dev/null
+++ b/requirements_dev.txt
@@ -0,0 +1,3 @@
+-r requirements.txt
+pycodestyle>=2.11.1
+pylint>=3.1.0