diff --git a/.github/workflows/linting.yaml b/.github/workflows/linting.yaml
new file mode 100644
index 0000000..23e5f90
--- /dev/null
+++ b/.github/workflows/linting.yaml
@@ -0,0 +1,30 @@
+name: Linting
+
+on:
+  push:
+    branches: [ "main", "master" ]
+  pull_request:
+    branches: [ "main", "master" ]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+
+      - name: Install Ruff
+        run: |
+          python -m pip install --upgrade pip
+          pip install ruff
+
+      - name: Run Ruff Lint
+        run: ruff check .
+
+      - name: Run Ruff Format Check
+        run: ruff format --check .
\ No newline at end of file
diff --git a/barevnyornament.py b/barevnyornament.py
index 2b1bf55..26f58df 100644
--- a/barevnyornament.py
+++ b/barevnyornament.py
@@ -2,7 +2,6 @@
 
 from turtle import exitonclick, bgcolor, title, colormode
 import turtle
-from random import randint
 
 
 def cara(t, strana, barva):
diff --git a/crazyvilllage.py b/crazyvilllage.py
index 33ff0ed..c841ffd 100644
--- a/crazyvilllage.py
+++ b/crazyvilllage.py
@@ -2,10 +2,8 @@
 
 from turtle import exitonclick, bgcolor, title, colormode
 import turtle
-from random import randint
 
-# ze souboru vesnice je potřeba funkce domecek
-from vesnice import *
+from vesnice import domecek
 import tkinter
 
 
@@ -48,7 +46,6 @@ def main():
     velikostDomecku = 3
 
     for _ in range(20):
-
         barva = (red, green, 0)
         posun(t, dilek)
         dilek = dilek + 20
diff --git a/dlazdice.py b/dlazdice.py
index e2ac9f4..3229bcc 100644
--- a/dlazdice.py
+++ b/dlazdice.py
@@ -1,9 +1,8 @@
 # nakreslí vesnici pomocí knihovny turtle
 
-from turtle import exitonclick, bgcolor, screensize, title, colormode
+from turtle import exitonclick, bgcolor, title, colormode
 import turtle
-from random import randint, randrange
-import math
+from random import randint
 
 
 def dlazdice(t, strana, barva):
diff --git a/doc/LICENSE.txt b/doc/LICENSE.txt
new file mode 100644
index 0000000..85af261
--- /dev/null
+++ b/doc/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) [2024] [hrosicka]
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/fialovyornament.py b/fialovyornament.py
index a6cd4ae..4efb6da 100644
--- a/fialovyornament.py
+++ b/fialovyornament.py
@@ -1,6 +1,6 @@
 # nakreslí vesnici pomocí knihovny turtle
 
-from turtle import exitonclick, bgcolor, screensize, title, colormode
+from turtle import exitonclick, bgcolor, title, colormode
 import turtle
 from random import randint
 
diff --git a/modrozelenyornament.py b/modrozelenyornament.py
index 062814d..82ddf77 100644
--- a/modrozelenyornament.py
+++ b/modrozelenyornament.py
@@ -1,9 +1,8 @@
 # nakreslí vesnici pomocí knihovny turtle
 
-from turtle import exitonclick, bgcolor, screensize, title, colormode
+from turtle import exitonclick, bgcolor, title, colormode
 import turtle
 from random import randint
-import math
 
 
 def cara(t, strana, barva):
diff --git a/sinewaves.py b/sinewaves.py
index 4b98509..89b5fbf 100644
--- a/sinewaves.py
+++ b/sinewaves.py
@@ -1,10 +1,8 @@
 # nakreslí vesnici pomocí knihovny turtle
 
-from turtle import exitonclick, bgcolor, title, colormode
+from turtle import exitonclick, bgcolor, title
 import turtle
-from random import randint
 import math
-import turtle
 
 bgcolor("lightblue")
 title("Sine Waves")
diff --git a/vesnice.py b/vesnice.py
index e43185b..806a0a8 100644
--- a/vesnice.py
+++ b/vesnice.py
@@ -74,7 +74,6 @@ def main():
 
     # vesnice má 100 domečků
     for _ in range(100):
-
         # náhodně určená poloha domku z intervalu
         x = randint(-300, 300)
         y = randint(-300, 300)