diff --git a/pyproject.toml b/pyproject.toml
index 534b791..417901e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,3 +27,29 @@ include = ["*"]
 
 [project.scripts]
 pvv-calendar-bot = "pvv_calendar_bot:main"
+
+[tool.ruff]
+line-length = 100
+
+[tool.ruff.lint]
+select = [
+    "A", # flake8-builtins
+    "B", # flake8-bugbear
+    "C4", # flake8-comprehensions
+    "COM", # flake8-commas
+    "ANN",
+    "E", # pycodestyle
+    "F", # Pyflakes
+    "FA", # flake8-future-annotations
+    "I", # isort
+    "S", # flake8-bandit
+    "ICN", # flake8-import-conventions
+    "ISC", # flake8-implicit-str-concat
+    # "N", # pep8-naming
+    "PTH", # flake8-use-pathlib
+    "RET", # flake8-return
+    "SIM", # flake8-simplify
+    "TC", # flake8-type-checking
+    "UP", # pyupgrade
+    "YTT", # flake8-2020
+]
diff --git a/src/pvv_calendar_bot/__init__.py b/src/pvv_calendar_bot/__init__.py
index 64a714f..6218470 100644
--- a/src/pvv_calendar_bot/__init__.py
+++ b/src/pvv_calendar_bot/__init__.py
@@ -1 +1,3 @@
 from pvv_calendar_bot.main import main
+
+__all__ = ["main"]
diff --git a/src/pvv_calendar_bot/event.py b/src/pvv_calendar_bot/event.py
index e02bab3..e0f92bb 100644
--- a/src/pvv_calendar_bot/event.py
+++ b/src/pvv_calendar_bot/event.py
@@ -4,22 +4,22 @@ import datetime
 class Event:
     def __init__(
         self,
-        id: int,
+        id_: int,
         start: datetime.datetime,
         name: str,
         location: str,
         organizer: str,
         description: str,
-    ):
-        self.id = id
+    ) -> None:
+        self.id = id_
         self.start = start
         self.name = name
         self.location = location
         self.organizer = organizer
         self.description = description
 
-    def __str__(self):
+    def __str__(self) -> str:
         return f"{self.name} ({self.id})"
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return f"Event({self.id}, {self.start}, {self.name})"
diff --git a/src/pvv_calendar_bot/main.py b/src/pvv_calendar_bot/main.py
index 9e47fd7..ac653cd 100644
--- a/src/pvv_calendar_bot/main.py
+++ b/src/pvv_calendar_bot/main.py
@@ -3,25 +3,28 @@
 # from .event import Event
 # from .scraping import get_soup, process_soup, get_events_today
 
-import os
-from nio import AsyncClient
-from textwrap import dedent
-from markdown2 import Markdown
 import asyncio
-from .sql_connector import fetch_events, Event
+import os
+from textwrap import dedent
+
+from markdown2 import Markdown
+from nio import AsyncClient
+
+from .sql_connector import Event, fetch_events
 
 MATRIX_URL = os.environ.get("MATRIX_URL", "https://matrix.pvv.ntnu.no").strip()
 MATRIX_USER = os.environ.get("MATRIX_USER", "@bot_calendar:pvv.ntnu.no").strip()
 MATRIX_TOKEN = os.environ.get("MATRIX_TOKEN").strip()
 ANNOUNCEMENT_CHANNEL = os.environ.get(
-    "ANNOUNCEMENT_CHANNEL", "!announcements:pvv.ntnu.no"
+    "ANNOUNCEMENT_CHANNEL",
+    "!announcements:pvv.ntnu.no",
 ).strip()
 
 client = None
 
 
 def create_announcement(event: Event, atEveryone: bool) -> str:
-    url = "https://www.pvv.ntnu.no/hendelser/info.php?id={}".format(event.id)
+    url = f"https://www.pvv.ntnu.no/hendelser/info.php?id={event.id}"
     msgText = dedent("""\
             ## Dagens arrangement / Event of the Day: "{name}"
             - 🕒 **{start}**
@@ -45,7 +48,9 @@ def create_announcement(event: Event, atEveryone: bool) -> str:
 
 
 async def sendMatrixAnnouncement(
-    event: Event, channel: str = ANNOUNCEMENT_CHANNEL, atEveryone: bool = False
+    event: Event,
+    channel: str = ANNOUNCEMENT_CHANNEL,
+    atEveryone: bool = False,
 ) -> None:
     msgText = create_announcement(event, atEveryone)
     return await client.room_send(
@@ -73,7 +78,7 @@ async def sendCalendarEvents() -> None:
     await client.close()
 
 
-def main():
+def main() -> None:
     asyncio.run(sendCalendarEvents())
 
 
diff --git a/src/pvv_calendar_bot/scraping.py b/src/pvv_calendar_bot/scraping.py
index 9c408a8..1831c61 100644
--- a/src/pvv_calendar_bot/scraping.py
+++ b/src/pvv_calendar_bot/scraping.py
@@ -1,78 +1,69 @@
-from .event import Event
-
-from typing import List
-from bs4 import BeautifulSoup
-import requests
-from operator import add
-from functools import reduce
 import datetime
+from functools import reduce
+from operator import add
+
+import requests
+from bs4 import BeautifulSoup
+
+from .event import Event
 
 
 def get_soup() -> BeautifulSoup:
-    r = requests.get("http://www.pvv.ntnu.no/hendelser/")
-    soup = BeautifulSoup(r.text, "html.parser")
-    return soup
+    r = requests.get("http://www.pvv.ntnu.no/hendelser/", timeout=300)
+    return BeautifulSoup(r.text, "html.parser")
 
 
-def process_soup(soup: BeautifulSoup) -> List[Event]:
+def process_soup(soup: BeautifulSoup) -> list[Event]:
     zips = []
     events = soup.find_all("ul", "events")
 
     for event in events:
         times, locations, organizers = zip(
             *(
-                list(
-                    map(
-                        lambda x: map(lambda y: y.find("strong").text, x),
-                        filter(
-                            lambda x: x != [],
-                            map(lambda x: x.find_all("li"), event.find_all("li")),
-                        ),
+                [
+                    (y.find("strong").text for y in x)
+                    for x in filter(
+                        lambda x: x != [],
+                        (x.find_all("li") for x in event.find_all("li")),
                     )
-                )
-            )
+                ]
+            ),
+            strict=False,
         )
-        times = list(
-            map(
-                lambda x: datetime.datetime.strptime(x, "%A %d. %b %H.%M").replace(
-                    year=datetime.datetime.now().year
-                ),
-                times,
+        times = [
+            datetime.datetime.strptime(x, "%A %d. %b %H.%M").replace(
+                year=datetime.datetime.now().year,
             )
-        )
-        names = list(
-            map(
-                lambda x: x[0].text,
-                filter(
-                    lambda x: x != [],
-                    map(lambda x: x.find_all("a"), event.find_all("li")),
-                ),
+            for x in times
+        ]
+        names = [
+            x[0].text
+            for x in filter(
+                lambda x: x != [],
+                (x.find_all("a") for x in event.find_all("li")),
             )
-        )
-        descriptions = list(
-            map(
-                lambda x: x.text,
-                filter(
-                    lambda x: x is not None,
-                    map(lambda x: x.find("p"), event.find_all("li")),
-                ),
+        ]
+        descriptions = [
+            x.text
+            for x in filter(
+                lambda x: x is not None,
+                (x.find("p") for x in event.find_all("li")),
             )
-        )
+        ]
         ids = []
         for a in event.find_all("a", href=True):
             if a["href"][:10] == "/hendelser":
                 ids.append(int(a["href"][a["href"].find("=") + 1 :]))
 
-        zips.append(list(zip(ids, times, names, organizers, locations, descriptions)))
+        zips.append(list(zip(ids, times, names, organizers, locations, descriptions, strict=False)))
 
     events = reduce(add, zips)
-    events = list(map(lambda x: Event(*x), events))
-    return events
+    return [Event(*x) for x in events]
 
 
-def get_events_today(events: List[Event]) -> List[Event]:
+def get_events_today(events: list[Event]) -> list[Event]:
     return list(
-        filter(lambda e: e.start.date() == datetime.datetime.today().date(), events)
+        filter(lambda e: e.start.date() == datetime.datetime.today().date(), events),
     )
 
 
diff --git a/src/pvv_calendar_bot/sql_connector.py b/src/pvv_calendar_bot/sql_connector.py
index 370d4a5..4fa7f08 100644
--- a/src/pvv_calendar_bot/sql_connector.py
+++ b/src/pvv_calendar_bot/sql_connector.py
@@ -1,8 +1,9 @@
-from dataclasses import dataclass
-import mysql.connector
-from pprint import pprint
 import os
+from dataclasses import dataclass
 from datetime import datetime
+from pprint import pprint
+
+import mysql.connector
 
 
 @dataclass
@@ -20,7 +21,7 @@ class Event:
     organiser: str
 
 
-def fetch_events():
+def fetch_events() -> list[Event]:
     mydb = mysql.connector.connect(
         host=os.environ.get("MYSQL_URL", "mysql.pvv.ntnu.no").strip(),
         user=os.environ.get("MYSQL_USER", "calendar-bot").strip(),
@@ -48,7 +49,7 @@ def fetch_events():
                 location=row[4],
                 description=row[5],
                 organiser=row[6],
-            )
+            ),
         )
     return results