diff --git a/.gitignore b/.gitignore
index 4093b4c..38cc15d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,6 +27,7 @@ var/
 *.egg-info/
 .installed.cfg
 *.egg
+venv/
 
 # PyInstaller
 #  Usually these files are written by a python script from a template
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..e7e9d11
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,2 @@
+# Default ignored files
+/workspace.xml
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..5ec5af8
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="ES6" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.9 (schneiderbot-tg)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..d7e241a
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/schneiderbot-tg.iml" filepath="$PROJECT_DIR$/.idea/schneiderbot-tg.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/schneiderbot-tg.iml b/.idea/schneiderbot-tg.iml
new file mode 100644
index 0000000..59f49df
--- /dev/null
+++ b/.idea/schneiderbot-tg.iml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="jdk" jdkName="Python 3.9 (schneiderbot-tg)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="PyDocumentationSettings">
+    <option name="format" value="PLAIN" />
+    <option name="myDocStringFormat" value="Plain" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/mensa.py b/mensa.py
index a529351..77b047d 100644
--- a/mensa.py
+++ b/mensa.py
@@ -1,6 +1,7 @@
 import datetime
-from telegram import ParseMode
+from telegram import ParseMode, Update
 import requests
+from telegram.ext import CallbackContext
 
 DISABLED_GROUPS = [-1001301570558]
 
@@ -70,11 +71,11 @@ MODES = {
 }
 
 
-def linux_mensa(bot, update):
-    mensa(bot, update, ["linux"])
+def linux_mensa(update: Update, context: CallbackContext):
+    mensa(update, context, ["linux"])
 
 
-def mensa(bot, update, args):
+def mensa(update: Update, context: CallbackContext, args: list[str]):
     if update.message.chat_id in DISABLED_GROUPS:
         return
     which = "zentral"
diff --git a/misc/commandlist b/misc/commandlist
index 7e4e813..362ebb0 100644
--- a/misc/commandlist
+++ b/misc/commandlist
@@ -1,6 +1,7 @@
 mensa - [TAG/full/veggy/fleisch/fisch] essen in der mensa, filter möglich
 cat - random cat image (using reddit.com/r/catpictures)
 dog - random dog image (using reddit.com/r/dogpictures)
+drillcat - random drillcat image (using reddit.com/r/drillcats)
 hamster - random dog image (using reddit.com/r/hamsters)
 wrongdog - random wrongdog image (using reddit.com/r/whatswrongwithyourdog)
 catdog - catdog pic
diff --git a/reddit.py b/reddit.py
index 38b93af..cf40ed2 100644
--- a/reddit.py
+++ b/reddit.py
@@ -1,6 +1,8 @@
 import praw
-from prawcore import exceptions
 import requests
+from prawcore import exceptions
+from telegram import Update
+from telegram.ext import CallbackContext
 
 four_twenty_groups = []
 
@@ -35,9 +37,9 @@ def get_reddit_post(sub, is_image_post=False):
         post = sub.random()
 
     except exceptions.NotFound:
-        return "Geile, gib gültiges Sub"
+        return "Ungültiges Sub :("
     except exceptions.Forbidden:
-        return "Geile, gib freies Sub"
+        return "Privates/Gesperrtes Sub :("
     except Exception as e:
         return e
 
@@ -50,66 +52,54 @@ def get_reddit_post(sub, is_image_post=False):
             post = sub.random()
             tries += 1
         if tries >= 5:
-            return "Geile, gib Sub mit Bildern (über 5 Fehlversuche)"
+            return "Keine Bilder gefunden (über 5 Fehlversuche)"
 
     return post
 
 
-def toggle_four_twenty(bot, update):
-    chat_id = update.message.chat_id
-
-    if chat_id in four_twenty_groups:
-        four_twenty_groups.remove(chat_id)
-        update.message.reply_text("You killed the fire!")
-    else:
-        four_twenty_groups.append(update.message.chat_id)
-        update.message.reply_text("420 blaze it!")
-
-
-def four_twenty(bot, update):
-    for group_id in four_twenty_groups:
-        post = get_reddit_post('trees', True)
-        bot.send_photo(chat_id=group_id, photo=post.url, caption=post.title)
-
-
-def wrong_dog(bot, update):
-    reddit_img(bot, update, ['whatswrongwithyourdog'])
+def wrong_dog(update: Update, context: CallbackContext):
+    context.args = ['whatswrongwithyourdog']
+    reddit_img(update, context)
 
 
-def hamster(bot, update):
-    reddit_img(bot, update, ['hamsters'])
+def hamster(update: Update, context: CallbackContext):
+    context.args = ['hamsters']
+    reddit_img(update, context)
 
 
-def drillcat(bot, update):
-    reddit_img(bot, update, ['drillcats'])
+def drillcat(update: Update, context: CallbackContext):
+    context.args = ['drillcats']
+    reddit_img(update, context)
 
 
-def cat(bot, update):
-    reddit_img(bot, update, ['catpictures'])
+def cat(update: Update, context: CallbackContext):
+    context.args = ['catpictures']
+    reddit_img(update, context)
 
 
-def dog(bot, update):
-    reddit_img(bot, update, ['dogpictures'])
+def dog(update: Update, context: CallbackContext):
+    context.args = ['dogpictures']
+    reddit_img(update, context)
 
 
-def reddit(bot, update, args):
-    if not args:
-        update.message.reply_text("Geile, sag sub")
+def reddit(update: Update, context: CallbackContext):
+    if not context.args:
+        update.message.reply_text("Bitte Sub angeben")
         return
 
-    sub = args[0]
+    sub = context.args[0]
     update.message.reply_text(get_reddit_post(sub).url)
 
 
-def reddit_img(bot, update, args):
-    if not args:
-        update.message.reply_text("Geile, sag sub")
+def reddit_img(update: Update, context: CallbackContext):
+    if not context.args:
+        update.message.reply_text("Bitte Sub angeben")
         return
-    sub = args[0]
+    sub = context.args[0]
     post = get_reddit_post(sub, True)
 
     try:
-        bot.send_photo(chat_id=update.message.chat_id, photo=post.url)
+        context.bot.send_photo(chat_id=update.message.chat_id, photo=post.url)
         return
     except AttributeError:
         update.message.reply_text(post)
diff --git a/schneiderbot.py b/schneiderbot.py
index 6fd3c38..16e763b 100755
--- a/schneiderbot.py
+++ b/schneiderbot.py
@@ -1,14 +1,13 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
-import datetime
 import logging
 import random
 
-from telegram import ParseMode
-from telegram.ext import Updater, CommandHandler
+from telegram import ParseMode, Update
+from telegram.ext import Updater, CommandHandler, CallbackContext
 
 from web_requests import send_coding_love_gif, send_wiki_how_article
-from reddit import wrong_dog, hamster, reddit, reddit_img, toggle_four_twenty, four_twenty, cat, dog, drillcat
+from reddit import wrong_dog, hamster, reddit, reddit_img, cat, dog, drillcat
 from schneiderbot_twitter import toggle_pepito_for_group, check_pepito_and_post_auto, check_pepito_and_post_manually
 from db import Db
 from mensa import mensa, linux_mensa
@@ -35,15 +34,14 @@ with open("res/simon.txt", "r") as tmp_file:
 
 # Define a few command handlers. These usually take the two arguments bot and
 # update. Error handlers also receive the raised TelegramError object in error.
-def start(bot, update):
+def start(update: Update, context: CallbackContext):
     """Was ist das hier für eins Bot?"""
     update.message.reply_text("""Hallo, ich bin ein Bot.
-    Ich liefere tolle Informationen über die Mensa, Katzenbilder, Hundebilder und andere _tolle_ Sachen. Die Infos kommen von
-    https://mensa.schneider-hosting.de
+    Ich liefere tolle Informationen über die Mensa, Katzenbilder, Hundebilder und andere _tolle_ Sachen.
     Mhmm, lecker. Guten Appetit!""", parse_mode=ParseMode.MARKDOWN)
 
 
-def help(bot, update):
+def help(update: Update, context: CallbackContext):
     """Send a message when the command /help is issued."""
     reply_text = """Commands:
     *Mensa*:
@@ -77,7 +75,7 @@ def help(bot, update):
     update.message.reply_text(reply_text, parse_mode=ParseMode.MARKDOWN)
 
 
-def kill(bot, update, sudocall=False):
+def kill(update: Update, context: CallbackContext, sudocall=False):
     """kill me pls"""
     db = Db()
     user = update.message.from_user.first_name
@@ -95,7 +93,7 @@ def kill(bot, update, sudocall=False):
     update.message.reply_text(message)
 
 
-def revive(bot, update, sudocall=False):
+def revive(update: Update, context: CallbackContext, sudocall=False):
     """unkill me pls"""
     db = Db()
     user = update.message.from_user.first_name
@@ -115,56 +113,56 @@ SUDO_CMDS = {
 }
 
 
-def graveyard(bot, update):
+def graveyard(update: Update, context: CallbackContext):
     """List the dead"""
     db = Db()
     update.message.reply_text("Here are the dead people:\n%s" % db.get_dead_bodies(update.message.chat_id))
 
 
-def sudo(bot, update, args):
+def sudo(update: Update, context: CallbackContext, args):
     """for real"""
     if not args:
         update.message.reply_text("Unknown command")
         return
     for arg in args:
         if arg in SUDO_CMDS:
-            SUDO_CMDS[arg](bot, update, True)
+            SUDO_CMDS[arg](update, context, True)
         else:
             update.message.reply_text("Unknown command")
 
 
-def send_cat_dog(bot, update):
+def send_cat_dog(update: Update, context: CallbackContext):
     """Best of both worlds!"""
     catdog = "https://upload.wikimedia.org/wikipedia/en/6/64/CatDog.jpeg"
-    bot.send_photo(chat_id=update.message.chat_id, photo=catdog)
+    context.bot.send_photo(chat_id=update.message.chat_id, photo=catdog)
 
 
-def magie(bot, update):
+def magie(update: Update, context: CallbackContext):
     """MAGIEEEEEE"""
     rand = random.SystemRandom()
     update.message.reply_text(STOLL[rand.randrange(0, len(STOLL), 1)])
 
 
-def manta(bot, update):
+def manta(update: Update, context: CallbackContext):
     """Boah ey, geile Karre!"""
     rand = random.SystemRandom()
     update.message.reply_text(MANTA[rand.randrange(0, len(MANTA), 1)])
 
 
-def goodlife(bot, update):
+def goodlife(update: Update, context: CallbackContext):
     """GOOD LIFE MY A..."""
     rand = random.SystemRandom()
     update.message.reply_text(GOOD_LIFE[rand.randrange(0, len(GOOD_LIFE), 1)])
 
 
-def shrug(bot, update):
+def shrug(update: Update, context: CallbackContext):
     """SHRUG"""
     update.message.reply_text("¯\_(ツ)_/¯")
 
 
-def simon(bot, update, args):
-    "KAUF DIR N HUND"
-    name = "@thedailysimon"
+def simon(update: Update, context: CallbackContext, args):
+    """KAUF DIR N HUND"""
+    name = "Simon"
     if len(args) > 0:
         name = args[0]
     rand = random.SystemRandom()
@@ -174,14 +172,14 @@ def simon(bot, update, args):
         % (name, animal))
 
 
-def echo(bot, update):
+def echo(update: Update, context: CallbackContext):
     """Echo the user message."""
     update.message.reply_text(update.message.text)
 
 
-def error(bot, update, error):
+def error(update: Update, context: CallbackContext):
     """Log Errors caused by Updates."""
-    logger.warning('Update "%s" caused error "%s"', update, error)
+    logger.warning('Update "%s" caused error "%s"', update, context.error)
 
 
 def init_commands(dp):
@@ -207,11 +205,10 @@ def init_commands(dp):
     dp.add_handler(CommandHandler("wrongdog", wrong_dog))
     dp.add_handler(CommandHandler("hamster", hamster))
     dp.add_handler(CommandHandler("drillcat", drillcat))
-    dp.add_handler(CommandHandler("reddit", reddit, pass_args=True))
-    dp.add_handler(CommandHandler("reddit_img", reddit_img, pass_args=True))
+    dp.add_handler(CommandHandler("reddit", reddit))
+    dp.add_handler(CommandHandler("reddit_img", reddit_img))
     dp.add_handler(CommandHandler("pepito", check_pepito_and_post_manually))
     dp.add_handler(CommandHandler("tpepito", toggle_pepito_for_group))
-    dp.add_handler(CommandHandler("lightitup", toggle_four_twenty))
 
 
 def main():
@@ -227,7 +224,6 @@ def main():
     init_commands(dp)
 
     jq.run_repeating(check_pepito_and_post_auto, interval=180, first=0)
-    jq.run_daily(four_twenty, datetime.time(4, 20, 0), days=(0, 1, 2, 3, 4, 5, 6))
 
     # on different commands - answer in Telegram
 
diff --git a/schneiderbot_twitter.py b/schneiderbot_twitter.py
index 723347d..5ea30e6 100644
--- a/schneiderbot_twitter.py
+++ b/schneiderbot_twitter.py
@@ -1,4 +1,6 @@
 import twitter
+from telegram import Update
+from telegram.ext import CallbackContext
 
 pepito_id = 333923305
 last_status = None
@@ -18,7 +20,7 @@ def get_twitter_instance():
                        access_token_secret=twitter_config['access_token_secret'])
 
 
-def toggle_pepito_for_group(bot, update):
+def toggle_pepito_for_group(update: Update, context: CallbackContext):
     global pepito_groups
     chat_id = update.message.chat_id
 
@@ -30,24 +32,24 @@ def toggle_pepito_for_group(bot, update):
         update.message.reply_text("Pepito is now enabled!")
 
 
-def check_pepito_and_post_auto(bot, update):
+def check_pepito_and_post_auto(context: CallbackContext):
     api = get_twitter_instance()
     current_status = api.GetUserTimeline(pepito_id)[0]
     global last_status
     if last_status is None or last_status.AsDict()['id'] != current_status.AsDict()['id']:
         for group_id in pepito_groups:
-            bot.send_message(chat_id=group_id, text=current_status.AsDict()['text'])
+            context.bot.send_message.send_message(chat_id=group_id, text=current_status.AsDict()['text'])
         last_status = current_status
 
 
-def check_pepito_and_post_manually(bot, update):
+def check_pepito_and_post_manually(update: Update, context: CallbackContext):
     api = get_twitter_instance()
     current_status = api.GetUserTimeline(pepito_id)[0]
     global last_status
 
     if last_status.AsDict()['id'] != current_status.AsDict()['id']:
         for group_id in pepito_groups:
-            bot.send_message(chat_id=group_id, text=current_status.AsDict()['text'])
+            context.bot.send_message(chat_id=group_id, text=current_status.AsDict()['text'])
         last_status = current_status
     else:
         update.message.reply_text(current_status.AsDict()['text'])
diff --git a/web_requests.py b/web_requests.py
index 0a80cbf..88e78d6 100644
--- a/web_requests.py
+++ b/web_requests.py
@@ -2,13 +2,16 @@ import requests
 import re
 import html
 
+from telegram import Update
+from telegram.ext import CallbackContext
+
 urls = {
     "codinglove": "https://thecodinglove.com/",
     "wikihow": "https://de.wikihow.com/Spezial:Randomizer"
 }
 
 
-def send_coding_love_gif(bot, update):
+def send_coding_love_gif(update: Update, context: CallbackContext):
     random_url = re.search('href="(.*)".*\n.*\n.*random\( \)', requests.get(urls["codinglove"]).text).group(1)
 
     random_page_content = requests.get(random_url)
@@ -23,13 +26,13 @@ def send_coding_love_gif(bot, update):
 
     if gif_match:
         gif_url = gif_match.group(1)
-        bot.send_animation(chat_id=update.message.chat_id, animation=gif_url, caption=caption)
+        context.bot.send_animation(chat_id=update.message.chat_id, animation=gif_url, caption=caption)
 
     else:
         update.message.reply_text("Error fetching image: {}  ¯\_(ツ)_/¯".format(random_url))
 
 
-def send_wiki_how_article(bot, update):
+def send_wiki_how_article(update: Update, context: CallbackContext):
     random_howto = requests.get(urls["wikihow"])
     howto_title = re.search('<title>(.*)</title>', random_howto.text).group(1)
     howto_url = re.search('<link rel="canonical" href="(.*)".*/>', random_howto.text).group(1)