diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
new file mode 100644
index 0000000..7a5d818
--- /dev/null
+++ b/.github/workflows/tests.yaml
@@ -0,0 +1,17 @@
+name: tests
+on:
+  push:
+  pull_request:
+
+jobs:
+  precommit:
+    name: pre-commit
+    runs-on: ubuntu-20.04
+    timeout-minutes: 8
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
+      with:
+        python-version: '3.8'
+    - run: 'pip install pre-commit'
+    - run: 'pre-commit run --all'
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1aafbd6..fda2a04 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,11 +1,38 @@
 repos:
+-   repo: meta
+    hooks:
+    -   id: check-hooks-apply
+    -   id: check-useless-excludes
 -   repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.0.1
+    rev: v4.3.0
     hooks:
     -   id: check-ast
-        exclude: tools
+        exclude: '^(tools)/'
     -   id: check-json
     -   id: check-xml
     -   id: check-yaml
     -   id: check-merge-conflict
     -   id: check-symlinks
+    -   id: check-added-large-files
+        args: ['--maxkb=100']
+-   repo: https://github.com/codespell-project/codespell
+    rev: v2.2.2
+    hooks:
+    -   id: codespell
+        exclude: '^(userspace/files/serviceproviders.xml)|(tools/)'
+        args:
+        # if you've got a short variable name that's getting flagged, add it here
+        - -L bu,ro,te,ue,alo,hda,ois,nam,nams,ned,som,parm,setts,inout,warmup
+        - --builtins clear,rare,informal,usage,code,names,en-GB_to_en-US
+-   repo: https://github.com/PyCQA/flake8
+    rev: 5.0.4
+    hooks:
+    -   id: flake8
+        exclude: '^(tools/)'
+        additional_dependencies: ['flake8-no-implicit-concat']
+        args:
+        - --indent-size=2
+        - --enable-extensions=NIC
+        - --select=F,E112,E113,E304,E502,E701,E702,E703,E71,E72,E731,W191,W6
+        - --statistics
+        - -j4
diff --git a/userspace/base_setup.sh b/userspace/base_setup.sh
index fdc66b4..f7780eb 100755
--- a/userspace/base_setup.sh
+++ b/userspace/base_setup.sh
@@ -129,7 +129,7 @@ echo "" >> /etc/apt/sources.list
 echo "deb http://ports.ubuntu.com/ubuntu-ports/ bionic main restricted" >> /etc/apt/sources.list
 echo "deb http://ports.ubuntu.com/ubuntu-ports/ bionic universe" >> /etc/apt/sources.list
 
-# Install neccesary libs
+# Install necessary libs
 apt-get update -yq
 apt-get install --no-install-recommends -yq \
     libacl1:armhf \
diff --git a/userspace/openpilot_dependencies.sh b/userspace/openpilot_dependencies.sh
index 6f39398..f9b972a 100755
--- a/userspace/openpilot_dependencies.sh
+++ b/userspace/openpilot_dependencies.sh
@@ -2,7 +2,7 @@
 
 echo "Installing openpilot dependencies"
 
-# Install neccesary libs
+# Install necessary libs
 apt-get update
 apt-get install --no-install-recommends -yq \
     autoconf \
diff --git a/userspace/usr/comma/power_drop_monitor.py b/userspace/usr/comma/power_drop_monitor.py
index 2745f02..9499caf 100755
--- a/userspace/usr/comma/power_drop_monitor.py
+++ b/userspace/usr/comma/power_drop_monitor.py
@@ -15,7 +15,7 @@ INA231_MASK_REG = 0x06
 INA231_LIMIT_REG = 0x07
 INA231_MASK_CONFIG = (1 << 12) # Bus undervoltage, not latching
 INA231_BUS_VOLTAGE_LSB_mV = 1.25
-VOLTAGE_FILE = f"/sys/class/hwmon/hwmon1/in1_input"
+VOLTAGE_FILE = "/sys/class/hwmon/hwmon1/in1_input"
 PARAM_FILE = "/data/params/d/LastPowerDropDetected"
 
 alert_pin_base = f"/sys/class/gpio/gpio{POWER_ALERT_GPIO_PIN}/"
@@ -118,6 +118,6 @@ if __name__ == '__main__':
         state_last = f.read().strip()
         if int(state_last) == 0:
           perform_controlled_shutdown()
-    except:
+    except Exception:
       pass
 
diff --git a/userspace/usr/comma/sound/adsp-start.sh b/userspace/usr/comma/sound/adsp-start.sh
index e96bae6..675dbf9 100755
--- a/userspace/usr/comma/sound/adsp-start.sh
+++ b/userspace/usr/comma/sound/adsp-start.sh
@@ -18,7 +18,7 @@ echo -n "/firmware/image" > /sys/module/firmware_class/parameters/path
 count=0
 while [ ! -s /firmware/image/adsp.mdt ]; do
   sleep 0.1
-  # wait 10s for /firmare mounted
+  # wait 10s for /firmware mounted
   count=$(( $count + 1 ))
   if [ $count -ge 100 ]; then
     echo "[ERROR] Can not find the adsp's firmware"