diff --git a/.github/workflows/linting.yml b/.github/workflows/linting.yml
index 56244ca..fcf6213 100644
--- a/.github/workflows/linting.yml
+++ b/.github/workflows/linting.yml
@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10']
+        python: ['3.9', '3.10', '3.11']
       fail-fast: false
 
     steps:
diff --git a/Makefile b/Makefile
index 2238ba3..ad1c188 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-#
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/fabfile.py b/fabfile.py
index 3ddb927..1744a99 100644
--- a/fabfile.py
+++ b/fabfile.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/geany.org.service b/geany.org.service
index 9712e82..4fe841d 100644
--- a/geany.org.service
+++ b/geany.org.service
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/geany/apps.py b/geany/apps.py
index dc310e6..c5f2a48 100644
--- a/geany/apps.py
+++ b/geany/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,4 +16,4 @@
 
 class GeanyAppConfig(AppConfig):
     name = 'geany'
-    verbose_name = "Geany"
+    verbose_name = 'Geany'
diff --git a/geany/decorators.py b/geany/decorators.py
index 97da831..2643756 100644
--- a/geany/decorators.py
+++ b/geany/decorators.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # based on http://djangosnippets.org/snippets/564/
 #
 # LICENCE: This program is free software: you can redistribute it and/or modify
@@ -14,8 +13,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from binascii import hexlify
 import inspect
+from binascii import hexlify
 
 from django.core.cache import cache as _djcache
 
diff --git a/geany/management/commands/dump_database.py b/geany/management/commands/dump_database.py
index 629c707..b97aba2 100644
--- a/geany/management/commands/dump_database.py
+++ b/geany/management/commands/dump_database.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -23,7 +22,7 @@
 
 
 class Command(BaseCommand):
-    help = "Dump the database (excluding users, sessions and logs)"
+    help = 'Dump the database (excluding users, sessions and logs)'  # noqa: A003
 
     # ----------------------------------------------------------------------
     def handle(self, *args, **options):
@@ -33,7 +32,7 @@ def handle(self, *args, **options):
 
     # ----------------------------------------------------------------------
     def _dump_main_database(self):
-        print('Dump main database')
+        self.stdout.write('Dump main database')
         call_command(
             'dumpdata',
             '--exclude', 'auth.user',
@@ -97,7 +96,7 @@ def _dump_nightly_builds_database(self):
 
         database_nightlybuilds_filename = 'tmp_database_nightlybuilds.json'
         database_nightlybuild_targets_filename = 'tmp_database_nightlybuild_targets.json'
-        print('Dump nightlybuilds.NightlyBuild')
+        self.stdout.write('Dump nightlybuilds.NightlyBuild')
         call_command(
             'dumpdata',
             '--database', 'nightlybuilds',
@@ -106,7 +105,7 @@ def _dump_nightly_builds_database(self):
             '--output', database_nightlybuilds_filename,
             'nightlybuilds.NightlyBuild')
 
-        print('Dump nightlybuilds.NightlyBuildTarget')
+        self.stdout.write('Dump nightlybuilds.NightlyBuildTarget')
         call_command(
             'dumpdata',
             '--database', 'nightlybuilds',
diff --git a/geany/settings.py b/geany/settings.py
index 586a450..8c9f968 100644
--- a/geany/settings.py
+++ b/geany/settings.py
@@ -19,6 +19,8 @@
 from markdown.extensions.toc import TocExtension
 
 
+# ruff: noqa: ERA001
+
 ######################
 # MEZZANINE SETTINGS #
 ######################
@@ -109,7 +111,7 @@
 # ('/admin', '/example') would force all URLs beginning with
 # /admin or /example to run over SSL. Defaults to:
 #
-SSL_FORCE_URL_PREFIXES = ("/admin", "/account")
+SSL_FORCE_URL_PREFIXES = ('/admin', '/account')
 
 # Django security settings
 SECURE_CONTENT_TYPE_NOSNIFF = True
@@ -138,7 +140,7 @@
                  'www.geany.org')
 INTERNAL_IPS = ('127.0.0.1', '10.0.44.3')
 
-SECRET_KEY = 'change-me'
+SECRET_KEY = 'change-me'  # noqa: S105
 
 # Local time zone for this installation. Choices can be found here:
 # http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
@@ -154,7 +156,7 @@
 
 # Language code for this installation. All choices can be found here:
 # http://www.i18nguy.com/unicode/language-identifiers.html
-LANGUAGE_CODE = "en"
+LANGUAGE_CODE = 'en'
 
 # Supported languages
 LANGUAGES = (
@@ -175,7 +177,7 @@
 # to load the internationalization machinery.
 USE_I18N = False
 
-AUTHENTICATION_BACKENDS = ("mezzanine.core.auth_backends.MezzanineBackend",)
+AUTHENTICATION_BACKENDS = ('mezzanine.core.auth_backends.MezzanineBackend',)
 
 # The numeric mode to set newly-uploaded files to. The value should be
 # a mode you'd pass directly to os.chmod.
@@ -193,24 +195,24 @@
 #############
 
 DATABASES = {
-    "default": {
-        "ENGINE": "django.db.backends.mysql",
-        "NAME": "dbname",
-        "USER": "",
-        "PASSWORD": "",
-        "HOST": "127.0.0.1",
-        "OPTIONS": {
-            "init_command": "SET sql_mode='STRICT_ALL_TABLES'; SET storage_engine=INNODB"
+    'default': {
+        'ENGINE': 'django.db.backends.mysql',
+        'NAME': 'dbname',
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '127.0.0.1',
+        'OPTIONS': {
+            'init_command': "SET sql_mode='STRICT_ALL_TABLES'; SET storage_engine=INNODB"
         },
     },
     'nightlybuilds': {
         'ENGINE': 'django.db.backends.mysql',
         'NAME': 'dbname',
-        "USER": "",
-        "PASSWORD": "",
-        "HOST": "127.0.0.1",
-        "OPTIONS": {
-            "init_command": "SET sql_mode='STRICT_ALL_TABLES';"
+        'USER': '',
+        'PASSWORD': '',
+        'HOST': '127.0.0.1',
+        'OPTIONS': {
+            'init_command': "SET sql_mode='STRICT_ALL_TABLES';"
         },
     }
 }
@@ -238,22 +240,22 @@
 
 # URL prefix for static files.
 # Example: "http://media.lawrence.com/static/"
-STATIC_URL = "/static/"
+STATIC_URL = '/static/'
 
 # Absolute path to the directory static files should be collected to.
 # Don't put anything in this directory yourself; store your static files
 # in apps' "static/" subdirectories and in STATICFILES_DIRS.
 # Example: "/home/media/media.lawrence.com/static/"
-STATIC_ROOT = os.path.join(PROJECT_ROOT, STATIC_URL.strip("/"))
+STATIC_ROOT = os.path.join(PROJECT_ROOT, STATIC_URL.strip('/'))
 
 # URL that handles the media served from MEDIA_ROOT. Make sure to use a
 # trailing slash.
 # Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
-MEDIA_URL = "/media/"
+MEDIA_URL = '/media/'
 
 # Absolute filesystem path to the directory that will hold user-uploaded files.
 # Example: "/home/media/media.lawrence.com/media/"
-MEDIA_ROOT = os.path.join(PROJECT_ROOT, *MEDIA_URL.strip("/").split("/"))
+MEDIA_ROOT = os.path.join(PROJECT_ROOT, *MEDIA_URL.strip('/').split('/'))
 
 # Package/module name to import the root urlpatterns from for the project.
 ROOT_URLCONF = f'{PROJECT_APP}.urls'
@@ -263,7 +265,7 @@
         'BACKEND': 'django.template.backends.django.DjangoTemplates',
         'APP_DIRS': True,
         'DIRS': [
-            os.path.join(PROJECT_APP_PATH, "templates"),
+            os.path.join(PROJECT_APP_PATH, 'templates'),
         ],
         'OPTIONS': {
             'context_processors': [
@@ -286,53 +288,53 @@
 # List of finder classes that know how to find static files in
 # various locations.
 STATICFILES_FINDERS = (
-    "django.contrib.staticfiles.finders.FileSystemFinder",
-    "django.contrib.staticfiles.finders.AppDirectoriesFinder",
+    'django.contrib.staticfiles.finders.FileSystemFinder',
+    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
     'compressor.finders.CompressorFinder',
 )
 
 # Store these package names here as they may change in the future since
 # at the moment we are using custom forks of them.
-PACKAGE_NAME_FILEBROWSER = "filebrowser_safe"
-PACKAGE_NAME_GRAPPELLI = "grappelli_safe"
+PACKAGE_NAME_FILEBROWSER = 'filebrowser_safe'
+PACKAGE_NAME_GRAPPELLI = 'grappelli_safe'
 
 ################
 # APPLICATIONS #
 ################
 
 INSTALLED_APPS = (
-    "clearcache",
-    "django.contrib.admin",
-    "django.contrib.auth",
-    "django.contrib.contenttypes",
-    "django.contrib.messages",
-    "django.contrib.redirects",
-    "django.contrib.sessions",
-    "django.contrib.sites",
-    "django.contrib.sitemaps",
-    "django.contrib.staticfiles",
-    "mezzanine.boot",
-    "mezzanine.conf",
-    "mezzanine.core",
-    "mezzanine.generic",
-    "mezzanine.pages",
-    "mezzanine.forms",
-    "mezzanine.galleries",
+    'clearcache',
+    'django.contrib.admin',
+    'django.contrib.auth',
+    'django.contrib.contenttypes',
+    'django.contrib.messages',
+    'django.contrib.redirects',
+    'django.contrib.sessions',
+    'django.contrib.sites',
+    'django.contrib.sitemaps',
+    'django.contrib.staticfiles',
+    'mezzanine.boot',
+    'mezzanine.conf',
+    'mezzanine.core',
+    'mezzanine.generic',
+    'mezzanine.pages',
+    'mezzanine.forms',
+    'mezzanine.galleries',
 
     # we
-    "geany.apps.GeanyAppConfig",
-    "news.apps.NewsAppConfig",
-    "latest_version.apps.LatestVersionAppConfig",
-    "static_docs.apps.StaticDocsAppConfig",
-    "pastebin.apps.PastebinAppConfig",
-    "nightlybuilds.apps.NightlyBuildsAppConfig",
-    "urlshortener.apps.UrlShortenerAppConfig",
+    'geany.apps.GeanyAppConfig',
+    'news.apps.NewsAppConfig',
+    'latest_version.apps.LatestVersionAppConfig',
+    'static_docs.apps.StaticDocsAppConfig',
+    'pastebin.apps.PastebinAppConfig',
+    'nightlybuilds.apps.NightlyBuildsAppConfig',
+    'urlshortener.apps.UrlShortenerAppConfig',
 
     # 3rd party
-    "compressor",
-    "django_extensions",
-    "mezzanine_pagedown",
-    "mezzanine_sync_pages.apps.MezzanineSyncPagesAppConfig",
+    'compressor',
+    'django_extensions',
+    'mezzanine_pagedown',
+    'mezzanine_sync_pages.apps.MezzanineSyncPagesAppConfig',
     # "shortener",  # disabled until it is fixed for Django 4.0 or we remove it completely
     PACKAGE_NAME_FILEBROWSER,
     PACKAGE_NAME_GRAPPELLI,
@@ -342,27 +344,27 @@
 # these middleware classes will be applied in the order given, and in the
 # response phase the middleware will be applied in reverse order.
 MIDDLEWARE = (
-    "log_request_id.middleware.RequestIDMiddleware",
-    "mezzanine.core.middleware.UpdateCacheMiddleware",
+    'log_request_id.middleware.RequestIDMiddleware',
+    'mezzanine.core.middleware.UpdateCacheMiddleware',
 
-    "django.middleware.security.SecurityMiddleware",
-    "django.contrib.sessions.middleware.SessionMiddleware",
+    'django.middleware.security.SecurityMiddleware',
+    'django.contrib.sessions.middleware.SessionMiddleware',
     # Uncomment if using internationalisation or localisation
     # "django.middleware.locale.LocaleMiddleware",
-    "django.middleware.common.CommonMiddleware",
-    "django.middleware.csrf.CsrfViewMiddleware",
-    "django.contrib.auth.middleware.AuthenticationMiddleware",
-    "django.contrib.messages.middleware.MessageMiddleware",
-    "django.middleware.clickjacking.XFrameOptionsMiddleware",
-
-    "mezzanine.core.request.CurrentRequestMiddleware",
-    "mezzanine.core.middleware.RedirectFallbackMiddleware",
-    "mezzanine.core.middleware.AdminLoginInterfaceSelectorMiddleware",
-    "mezzanine.core.middleware.SitePermissionMiddleware",
+    'django.middleware.common.CommonMiddleware',
+    'django.middleware.csrf.CsrfViewMiddleware',
+    'django.contrib.auth.middleware.AuthenticationMiddleware',
+    'django.contrib.messages.middleware.MessageMiddleware',
+    'django.middleware.clickjacking.XFrameOptionsMiddleware',
+
+    'mezzanine.core.request.CurrentRequestMiddleware',
+    'mezzanine.core.middleware.RedirectFallbackMiddleware',
+    'mezzanine.core.middleware.AdminLoginInterfaceSelectorMiddleware',
+    'mezzanine.core.middleware.SitePermissionMiddleware',
     # Uncomment the following if using any of the SSL settings:
     # "mezzanine.core.middleware.SSLRedirectMiddleware",
-    "mezzanine.pages.middleware.PageMiddleware",
-    "mezzanine.core.middleware.FetchFromCacheMiddleware",
+    'mezzanine.pages.middleware.PageMiddleware',
+    'mezzanine.core.middleware.FetchFromCacheMiddleware',
 )
 
 # pagedown / markdown
@@ -396,33 +398,33 @@
 
 # dashboard
 DASHBOARD_TAGS = (
-    ("mezzanine_tags.app_list",),
-    ("mezzanine_tags.recent_actions",),
-    ("comment_tags.recent_comments",),
+    ('mezzanine_tags.app_list',),
+    ('mezzanine_tags.recent_actions',),
+    ('comment_tags.recent_comments',),
 )
 
 ADMIN_MENU_ORDER = (
-    (_("Content"), (
-        "pages.Page",
-        "news.NewsPost",
-        "generic.ThreadedComment",
-        "mezzanine_blocks.Block",
-        "mezzanine_blocks.RichBlock",
-        "mezzanine_sync_pages.MezzanineSyncPages",
-        (_("Media Library"), "fb_browse"),)),
-    (_("Site"), (
-        "sites.Site",
-        "redirects.Redirect",
-        "conf.Setting",
-        (_("Clear Cache"), "clearcache_admin"),
+    (_('Content'), (
+        'pages.Page',
+        'news.NewsPost',
+        'generic.ThreadedComment',
+        'mezzanine_blocks.Block',
+        'mezzanine_blocks.RichBlock',
+        'mezzanine_sync_pages.MezzanineSyncPages',
+        (_('Media Library'), 'fb_browse'),)),
+    (_('Site'), (
+        'sites.Site',
+        'redirects.Redirect',
+        'conf.Setting',
+        (_('Clear Cache'), 'clearcache_admin'),
     )),
-    (_("Geany"), (
-        "latest_version.LatestVersion",
+    (_('Geany'), (
+        'latest_version.LatestVersion',
     )),
-    (_("Users"), ("auth.User", "auth.Group",)))  # pylint: disable=hard-coded-auth-user
+    (_('Users'), ('auth.User', 'auth.Group',)))  # pylint: disable=hard-coded-auth-user
 
 # caching & sessions
-SESSION_ENGINE = "django.contrib.sessions.backends.cached_db"
+SESSION_ENGINE = 'django.contrib.sessions.backends.cached_db'
 SESSION_EXPIRE_AT_BROWSER_CLOSE = True
 SESSION_COOKIE_SECURE = True
 
@@ -457,7 +459,7 @@ def skip_404_not_found(record):
     return True
 
 
-logging.captureWarnings(True)  # log warnings using the logging subsystem
+logging.captureWarnings(capture=True)  # log warnings using the logging subsystem
 LOGGING = {
     'version': 1,
     'disable_existing_loggers': False,
@@ -602,14 +604,15 @@ def skip_404_not_found(record):
 local_settings_file_name = os.environ.get('LOCAL_SETTINGS_PY', 'local_settings.py')
 filename = os.path.join(PROJECT_APP_PATH, local_settings_file_name)  # pylint: disable=invalid-name
 if os.path.exists(filename):
-    from importlib.util import module_from_spec, spec_from_file_location
     import sys
+    from importlib.util import module_from_spec, spec_from_file_location
+
     module_name = f'{PROJECT_APP}.local_settings'  # pylint: disable=invalid-name
     spec = spec_from_file_location(module_name, filename)  # pylint: disable=invalid-name
     module = module_from_spec(spec)  # pylint: disable=invalid-name
     sys.modules[module_name] = module
     with open(filename, 'rb') as local_config:
-        exec(local_config.read())  # pylint: disable=exec-used
+        exec(local_config.read())  # noqa: S102 pylint: disable=exec-used
 
 
 ####################
diff --git a/geany/sitemaps.py b/geany/sitemaps.py
index 8141ac8..d18c7e2 100644
--- a/geany/sitemaps.py
+++ b/geany/sitemaps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -181,9 +180,9 @@ def _get_static_items(self):
     def _get_items(self, item_generator_name):
         items = []
         for generator_class, url_patterns, site_domain, exclude_views in self._sitemap_generators:
-            site_domain = self._get_site_domain_or_default(site_domain)
+            site_domain_final = self._get_site_domain_or_default(site_domain)
             generator = generator_class(
-                site_domain,
+                site_domain_final,
                 url_patterns,
                 exclude_views=exclude_views)
             item_generator = getattr(generator, item_generator_name)
diff --git a/geany/templatetags/geany_tags.py b/geany/templatetags/geany_tags.py
index 8570633..71fc10c 100644
--- a/geany/templatetags/geany_tags.py
+++ b/geany/templatetags/geany_tags.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -53,8 +52,8 @@ def do_evaluate(parser, token):  # pylint: disable=unused-argument
         _, variable, _, target_var_name = token.split_contents()
     except ValueError as exc:
         token_name = token.contents.split()[1]
-        raise template.TemplateSyntaxError(
-            f'{token_name!r} tag requires a single argument') from exc
+        msg = f'{token_name!r} tag requires a single argument'
+        raise template.TemplateSyntaxError(msg) from exc
     return EvaluateNode(variable, target_var_name)
 
 
diff --git a/geany/urls.py b/geany/urls.py
index 863677c..4dc9509 100644
--- a/geany/urls.py
+++ b/geany/urls.py
@@ -11,6 +11,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+import mezzanine_pagedown.urls
 from django.conf.urls.i18n import i18n_patterns
 from django.contrib import admin
 from django.contrib.sitemaps.views import sitemap
@@ -19,7 +20,6 @@
 from django.views.i18n import set_language
 from django.views.static import serve as static_serve
 from mezzanine.conf import settings
-import mezzanine_pagedown.urls
 
 from geany import urls_legacy
 from geany.sitemaps import GeanyMainSitemap
@@ -28,7 +28,7 @@
 
 # pylint: disable=invalid-name
 
-sitemaps = {"sitemaps": {"all": GeanyMainSitemap}}
+sitemaps = {'sitemaps': {'all': GeanyMainSitemap}}
 
 
 admin.autodiscover()
@@ -37,7 +37,7 @@
     # Change the admin prefix here to use an alternate URL for the
     # admin interface, which would be marginally more secure.
     path('admin/clearcache/', include('clearcache.urls')),
-    path("admin/", include(admin.site.urls)),
+    path('admin/', include(admin.site.urls)),
 )
 
 if settings.USE_MODELTRANSLATION:
@@ -63,7 +63,8 @@
     path('p/', include('pastebin.urls')),
 
     # URL Shortener
-    # path('s/', include('urlshortener.urls')),  # disabled until it is fixed for Django 4.0
+    # disabled until it is fixed for Django 4.0
+    # path('s/', include('urlshortener.urls')),  # noqa: ERA001
 
     # /news/ News
     path('news/', include('news.urls')),
diff --git a/geany/urls_legacy.py b/geany/urls_legacy.py
index 1e9cd23..fd133af 100644
--- a/geany/urls_legacy.py
+++ b/geany/urls_legacy.py
@@ -185,7 +185,7 @@
 def _add_url_mappings(mapping, urlpatterns_):
     for old_url, new_url in mapping.items():
         if old_url.startswith('/'):
-            old_url = old_url[1:]
+            old_url = old_url[1:]  # noqa: PLW2901
 
         url_pattern = re_path(
             fr'^{old_url}$',
diff --git a/latest_version/admin.py b/latest_version/admin.py
index b501ea2..c7f8651 100644
--- a/latest_version/admin.py
+++ b/latest_version/admin.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/latest_version/apps.py b/latest_version/apps.py
index a1d2aa1..d19937d 100644
--- a/latest_version/apps.py
+++ b/latest_version/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,12 +16,12 @@
 
 class LatestVersionAppConfig(AppConfig):
     name = 'latest_version'
-    verbose_name = "LatestVersion"
+    verbose_name = 'LatestVersion'
 
     # ----------------------------------------------------------------------
     def ready(self):
         # register our urlpatterns to the global sitemap generator
         # pylint: disable=import-outside-toplevel
-        from geany.sitemaps import sitemap_registry, StaticSitemap
+        from geany.sitemaps import StaticSitemap, sitemap_registry
         from latest_version.urls import urlpatterns
         sitemap_registry.add(StaticSitemap, urlpatterns, exclude_views=['latest_version_legacy'])
diff --git a/latest_version/context_processors.py b/latest_version/context_processors.py
index ba7b85d..b194173 100644
--- a/latest_version/context_processors.py
+++ b/latest_version/context_processors.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -15,9 +14,9 @@
 from mezzanine.conf import settings
 
 from geany.decorators import (
-    cache_function,
     CACHE_KEY_LATEST_VERSION_LATEST_VERSION,
     CACHE_TIMEOUT_1HOUR,
+    cache_function,
 )
 from latest_version.models import LatestVersion
 from latest_version.releases import ReleaseVersionsProvider
diff --git a/latest_version/models.py b/latest_version/models.py
index 17dcc15..287d1c5 100644
--- a/latest_version/models.py
+++ b/latest_version/models.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -36,8 +35,8 @@ class Meta:
         verbose_name_plural = 'Latest Version'
 
     # ----------------------------------------------------------------------
-    def delete(self, using=None, keep_parents=False):
-        """Never delete anything"""
+    def __str__(self):
+        return f'{self.name} {self.version}'
 
     # ----------------------------------------------------------------------
     def save(self, *args, **kwargs):  # pylint: disable=signature-differs
@@ -47,5 +46,5 @@ def save(self, *args, **kwargs):  # pylint: disable=signature-differs
             [CACHE_KEY_LATEST_VERSION_LATEST_VERSION, CACHE_KEY_STATIC_DOCS_RELEASE_NOTES])
 
     # ----------------------------------------------------------------------
-    def __str__(self):
-        return f'{self.name} {self.version}'
+    def delete(self, using=None, keep_parents=False):
+        """Never delete anything"""
diff --git a/latest_version/releases.py b/latest_version/releases.py
index c2b2122..44412db 100644
--- a/latest_version/releases.py
+++ b/latest_version/releases.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -12,9 +11,9 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from pathlib import Path
 import logging
 import re
+from pathlib import Path
 
 from django.conf import settings
 from packaging.version import parse as parse_version
diff --git a/news/admin.py b/news/admin.py
index 6fc72d0..ab70bac 100644
--- a/news/admin.py
+++ b/news/admin.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -20,12 +19,12 @@
 
 class NewsPostAdmin(admin.ModelAdmin):
     list_display = ('title', 'user', 'status', 'publish_date')
-    list_editable = ("status",)
+    list_editable = ('status',)
     list_filter = ('publish_date', 'status')
     date_hierarchy = 'publish_date'
     exclude = ('slug', 'user', 'entry_date')
     actions = ['_toggle_many_published']
-    radio_fields = {"status": admin.HORIZONTAL}
+    radio_fields = {'status': admin.HORIZONTAL}
 
     # ----------------------------------------------------------------------
     def save_model(self, request, obj, form, change):
diff --git a/news/apps.py b/news/apps.py
index 211487a..e0301b8 100644
--- a/news/apps.py
+++ b/news/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,7 +16,7 @@
 
 class NewsAppConfig(AppConfig):
     name = 'news'
-    verbose_name = "News"
+    verbose_name = 'News'
 
     # ----------------------------------------------------------------------
     def ready(self):
diff --git a/news/feeds.py b/news/feeds.py
index 2e3635a..92d7fe0 100644
--- a/news/feeds.py
+++ b/news/feeds.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -23,12 +22,12 @@
 
 class LatestNewsPostsFeed(Feed):
 
-    title = "Geany project news"
-    description = "News feed for the Geany project"
+    title = 'Geany project news'
+    description = 'News feed for the Geany project'
 
     # ----------------------------------------------------------------------
     def link(self):
-        return reverse("news_list")
+        return reverse('news_list')
 
     # ----------------------------------------------------------------------
     def items(self):
@@ -41,7 +40,7 @@ def item_title(self, item):
     # ----------------------------------------------------------------------
     def item_description(self, item):
         description = richtext_filters(item.content)
-        absolute_urls_name = "mezzanine.utils.html.absolute_urls"
+        absolute_urls_name = 'mezzanine.utils.html.absolute_urls'
         if absolute_urls_name not in settings.RICHTEXT_FILTERS:
             description = absolute_urls(description)
         return description
diff --git a/news/models.py b/news/models.py
index ebd715c..a2751c4 100644
--- a/news/models.py
+++ b/news/models.py
@@ -83,6 +83,10 @@ class Meta:
         verbose_name = _('News')
         verbose_name_plural = _('News')
 
+    # ----------------------------------------------------------------------
+    def __str__(self):
+        return self.title
+
     # ----------------------------------------------------------------------
     def save(self, *args, **kwargs):  # pylint: disable=signature-differs
         if not self.slug:
@@ -92,7 +96,3 @@ def save(self, *args, **kwargs):  # pylint: disable=signature-differs
     # ----------------------------------------------------------------------
     def get_absolute_url(self):
         return reverse('news_detail', kwargs={'newspost_slug': self.slug})
-
-    # ----------------------------------------------------------------------
-    def __str__(self):
-        return self.title
diff --git a/news/sitemaps.py b/news/sitemaps.py
index b08b556..e66ebfd 100644
--- a/news/sitemaps.py
+++ b/news/sitemaps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/news/templatetags/news_tags.py b/news/templatetags/news_tags.py
index eedee03..6f40cb4 100644
--- a/news/templatetags/news_tags.py
+++ b/news/templatetags/news_tags.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -21,8 +20,8 @@
 
 
 # ----------------------------------------------------------------------
-@register.inclusion_tag("news/list_embedded.html", takes_context=True)
+@register.inclusion_tag('news/list_embedded.html', takes_context=True)
 def get_recent_news(context):
     user = context.request.user
-    context["recent_news_posts"] = NewsPost.objects.recently_published(count=4, for_user=user)
+    context['recent_news_posts'] = NewsPost.objects.recently_published(count=4, for_user=user)
     return context
diff --git a/news/views.py b/news/views.py
index 402ec5d..26a87e7 100644
--- a/news/views.py
+++ b/news/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/nightlybuilds/apps.py b/nightlybuilds/apps.py
index c0c8198..5f8eb63 100644
--- a/nightlybuilds/apps.py
+++ b/nightlybuilds/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,4 +16,4 @@
 
 class NightlyBuildsAppConfig(AppConfig):
     name = 'nightlybuilds'
-    verbose_name = "Nightly Builds"
+    verbose_name = 'Nightly Builds'
diff --git a/nightlybuilds/database_routers.py b/nightlybuilds/database_routers.py
index 23ee0c5..031b6f5 100644
--- a/nightlybuilds/database_routers.py
+++ b/nightlybuilds/database_routers.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -12,6 +11,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+# ruff: noqa: SLF001
 # pylint: disable=protected-access,unused-argument
 
 
diff --git a/nightlybuilds/models.py b/nightlybuilds/models.py
index 1055271..1acbedf 100644
--- a/nightlybuilds/models.py
+++ b/nightlybuilds/models.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -58,6 +57,10 @@ class Meta:
         ordering = ('-build_date',)
         db_table = 'nightly_build'
 
+    # ----------------------------------------------------------------------
+    def __str__(self):
+        return f'{self.build_date} {self.nightly_build_target}'
+
     # ----------------------------------------------------------------------
     def get_status(self):
         return not self.status
@@ -68,7 +71,3 @@ def get_status_text(self):
             return 'Built successfully'
 
         return 'Build failed, see the logs for details'
-
-    # ----------------------------------------------------------------------
-    def __str__(self):
-        return f'{self.build_date} {self.nightly_build_target}'
diff --git a/nightlybuilds/templatetags/nightlybuilds_tags.py b/nightlybuilds/templatetags/nightlybuilds_tags.py
index 8f34508..f1bd0db 100644
--- a/nightlybuilds/templatetags/nightlybuilds_tags.py
+++ b/nightlybuilds/templatetags/nightlybuilds_tags.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -26,10 +25,7 @@
 # ----------------------------------------------------------------------
 @register.simple_tag
 def get_build_log(nightly_build, log_type):
-    if log_type == 'Stdout':
-        log = nightly_build.log_stdout
-    else:
-        log = nightly_build.log_stderr
+    log = nightly_build.log_stdout if log_type == 'Stdout' else nightly_build.log_stderr
 
     if log:
         logfile_path = os.path.join(BASE_DIR, nightly_build.nightly_build_target.folder, log)
diff --git a/nightlybuilds/views.py b/nightlybuilds/views.py
index e711f9c..b50dc6e 100644
--- a/nightlybuilds/views.py
+++ b/nightlybuilds/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -19,7 +18,7 @@
 
 
 class NightlyBuildsView(ListView):
-    template_name = "nightlybuilds.html"
+    template_name = 'nightlybuilds.html'
 
     context_object_name = 'nightlybuilds'
 
diff --git a/pastebin/admin.py b/pastebin/admin.py
index 12f37ea..9055237 100644
--- a/pastebin/admin.py
+++ b/pastebin/admin.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/pastebin/api/create.py b/pastebin/api/create.py
index 35127b9..1bf9044 100644
--- a/pastebin/api/create.py
+++ b/pastebin/api/create.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -95,8 +94,8 @@ def _validate_passed_fields(self):
         provided_fields = set(self._data.keys())
         additional_fields = provided_fields.difference(self.valid_fields)
         if additional_fields:
-            raise SnippetValidationError(
-                f'Invalid fields provided ({",".join(additional_fields)})')
+            msg = f'Invalid fields provided ({",".join(additional_fields)})'
+            raise SnippetValidationError(msg)
 
     # ----------------------------------------------------------------------
     def _validate_against_snippet_form(self):
diff --git a/pastebin/apps.py b/pastebin/apps.py
index e9a8c63..41e57d1 100644
--- a/pastebin/apps.py
+++ b/pastebin/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,12 +16,12 @@
 
 class PastebinAppConfig(AppConfig):
     name = 'pastebin'
-    verbose_name = "Pastebin"
+    verbose_name = 'Pastebin'
 
     # ----------------------------------------------------------------------
     def ready(self):
         # Sitemap framework
         # pylint: disable=import-outside-toplevel
-        from geany.sitemaps import sitemap_registry, StaticSitemap
+        from geany.sitemaps import StaticSitemap, sitemap_registry
         from pastebin.urls import urlpatterns
         sitemap_registry.add(StaticSitemap, urlpatterns, exclude_views=['snippet_api'])
diff --git a/pastebin/forms.py b/pastebin/forms.py
index 3dbbd8b..c2adb83 100644
--- a/pastebin/forms.py
+++ b/pastebin/forms.py
@@ -60,7 +60,8 @@ def _clean_field(self, field_name):
         if value:
             regex = Spamword.objects.get_regex()
             if regex.findall(value.lower()):
-                raise forms.ValidationError('This snippet was identified as SPAM.')
+                msg = 'This snippet was identified as SPAM.'
+                raise forms.ValidationError(msg)
 
         return value
 
diff --git a/pastebin/highlight.py b/pastebin/highlight.py
index 43c0c81..87dd735 100644
--- a/pastebin/highlight.py
+++ b/pastebin/highlight.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -74,7 +73,8 @@ def pygmentize(code_string, lexer_name=LEXER_DEFAULT):
         if lexer_name:
             lexer = get_lexer_by_name(lexer_name)
         else:
-            raise Exception('Unknown lexer')
+            msg = 'Unknown lexer'
+            raise ValueError(msg)  # noqa: TRY301
     except Exception:
         lexer = PythonLexer()
 
diff --git a/pastebin/management/commands/cleanup_snippets.py b/pastebin/management/commands/cleanup_snippets.py
index 66ebcf9..dae6d4f 100644
--- a/pastebin/management/commands/cleanup_snippets.py
+++ b/pastebin/management/commands/cleanup_snippets.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -21,8 +20,7 @@
 
 
 class Command(BaseCommand):
-
-    help = 'Purges snippets that are expired'
+    help = 'Purges snippets that are expired'  # noqa: A003
 
     # ----------------------------------------------------------------------
     def add_arguments(self, parser):
@@ -30,7 +28,7 @@ def add_arguments(self, parser):
             '--dry-run', '-d',
             action='store_true',
             dest='dry_run',
-            help='Don\'t do anything.')
+            help="Don't do anything.")
 
     # ----------------------------------------------------------------------
     def handle(self, *args, **options):
diff --git a/pastebin/management/commands/generate_snippets_css.py b/pastebin/management/commands/generate_snippets_css.py
index efe9db1..bf03449 100644
--- a/pastebin/management/commands/generate_snippets_css.py
+++ b/pastebin/management/commands/generate_snippets_css.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,7 +16,7 @@
 
 
 class Command(BaseCommand):
-    help = "Regenerate CSS for snippet sxntax highlighting py Pygments"
+    help = 'Regenerate CSS for snippet sxntax highlighting py Pygments'  # noqa: A003
     requires_system_checks = False
 
     # ----------------------------------------------------------------------
diff --git a/pastebin/models.py b/pastebin/models.py
index 5f1bd87..3b7195a 100644
--- a/pastebin/models.py
+++ b/pastebin/models.py
@@ -11,10 +11,10 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from datetime import timedelta
 import random
 import re
 import time
+from datetime import timedelta
 
 from django.core.cache import cache
 from django.db import models
@@ -32,7 +32,8 @@
 
 # ----------------------------------------------------------------------
 def generate_secret_id(length=5):
-    return ''.join([random.choice(CHARS) for i in range(length)])  # pylint: disable=unused-variable
+    randon_chars = random.choice(CHARS)  # noqa: S311
+    return ''.join([randon_chars for i in range(length)])  # pylint: disable=unused-variable
 
 
 class Snippet(models.Model):
@@ -54,6 +55,26 @@ class Snippet(models.Model):
     class Meta:
         ordering = ('-published',)
 
+    # ----------------------------------------------------------------------
+    def __str__(self):
+        return f'{self.secret_id}'
+
+    # ----------------------------------------------------------------------
+    def save(self, *args, **kwargs):  # pylint: disable=signature-differs
+        if not self.pk and not self.secret_id:
+            self.secret_id = generate_secret_id()
+        if not self.published:
+            self.published = timezone.now()
+
+        self.content_highlighted = self.content
+        super().save(*args, **kwargs)
+        # invalidate cache
+        cache.delete_many([CACHE_KEY_SNIPPET_LIST_NO_CONTENT, CACHE_KEY_SNIPPET_LIST_FULL])
+
+    # ----------------------------------------------------------------------
+    def get_absolute_url(self):
+        return reverse('snippet_details', kwargs={'snippet_id': self.secret_id})
+
     # ----------------------------------------------------------------------
     def age(self):
         age = time.mktime(self.published.timetuple())
@@ -61,14 +82,14 @@ def age(self):
 
     # ----------------------------------------------------------------------
     def _readable_delta(self, from_seconds, until_seconds=None):
-        '''Returns a nice readable delta.
+        """Returns a nice readable delta.
 
         readable_delta(1, 2)           # 1 second ago
         readable_delta(1000, 2000)     # 16 minutes ago
         readable_delta(1000, 9000)     # 2 hours, 133 minutes ago
         readable_delta(1000, 987650)   # 11 days ago
         readable_delta(1000)           # 15049 days ago (relative to now)
-        '''
+        """
 
         if not until_seconds:
             until_seconds = time.time()
@@ -83,12 +104,12 @@ def _readable_delta(self, from_seconds, until_seconds=None):
         # show a fuzzy but useful approximation of the time delta
         if delta.days:
             return f'{delta.days} days ago'
-        elif delta_hours:
+        if delta_hours:
             return f'{delta_hours} hours ago'
-        elif delta_minutes:
+        if delta_minutes:
             return f'{delta_minutes} minutes ago'
-        else:
-            return f'{delta.seconds} seconds ago'
+
+        return f'{delta.seconds} seconds ago'
 
     # ----------------------------------------------------------------------
     def get_linecount(self):
@@ -98,39 +119,19 @@ def get_linecount(self):
     def content_splitted(self):
         return self.content_highlighted.splitlines()
 
-    # ----------------------------------------------------------------------
-    def save(self, *args, **kwargs):  # pylint: disable=signature-differs
-        if not self.pk and not self.secret_id:
-            self.secret_id = generate_secret_id()
-        if not self.published:
-            self.published = timezone.now()
-
-        self.content_highlighted = self.content
-        super().save(*args, **kwargs)
-        # invalidate cache
-        cache.delete_many([CACHE_KEY_SNIPPET_LIST_NO_CONTENT, CACHE_KEY_SNIPPET_LIST_FULL])
-
     # ----------------------------------------------------------------------
     def delete(self, *args, **kwargs):  # pylint: disable=signature-differs
         super().delete(*args, **kwargs)
         # invalidate cache
         cache.delete_many([CACHE_KEY_SNIPPET_LIST_NO_CONTENT, CACHE_KEY_SNIPPET_LIST_FULL])
 
-    # ----------------------------------------------------------------------
-    def get_absolute_url(self):
-        return reverse('snippet_details', kwargs={'snippet_id': self.secret_id})
-
-    # ----------------------------------------------------------------------
-    def __str__(self):
-        return f'{self.secret_id}'
-
 
 class SpamwordManager(models.Manager):
 
     # ----------------------------------------------------------------------
     def get_regex(self):
         return re.compile(
-            r'|'.join((i[1] for i in self.values_list())),
+            r'|'.join(i[1] for i in self.values_list()),
             re.MULTILINE)
 
 
diff --git a/pastebin/templatetags/pastebin_tags.py b/pastebin/templatetags/pastebin_tags.py
index 815a4b7..059fbe1 100644
--- a/pastebin/templatetags/pastebin_tags.py
+++ b/pastebin/templatetags/pastebin_tags.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -41,10 +40,7 @@ def timeuntil_or_forever(snippet_expire):
 @register.filter
 def highlight(snippet, line_count=None):
     highlighted = pygmentize(snippet.content, snippet.lexer)
-    if highlighted:
-        lines = highlighted.splitlines()
-    else:
-        lines = snippet.content.splitlines()
+    lines = highlighted.splitlines() if highlighted else snippet.content.splitlines()
 
     if line_count:
         lines = lines[:line_count]
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..7f38c9f
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,130 @@
+###
+### Ruff
+###
+[tool.ruff]
+line-length = 100
+select = [
+    "A", # flake8-builtins
+    "B", # flake8-bugbear
+    "BLE", # flake8-blind-except
+    "C4", # flake8-comprehensions
+    "C90", # mccabe
+    "DJ", # flake8-django
+    "DTZ", # flake8-datetimez
+    "E", # pycodestyle errors
+    "EM", # flake8-errmsg
+    "ERA", # eradicate
+    "EXE", # flake8-executable
+    "F", # Pyflakes
+    "FBT", # flake8-boolean-trap
+    "G", # flake8-logging-format
+    "I", # isort
+    "ICN", # flake8-import-conventions
+    "INP", # flake8-no-pep420
+    "INT", # flake8-gettext
+    "ISC", # flake8-implicit-str-concat
+    "N", # pep8-naming
+    "NPY", # NumPy-specific rules
+    "PD", # pandas-vet
+    "PGH", # pygrep-hooks
+    "PIE", # flake8-pie
+    "PL", # Pylint
+    "PT", # flake8-pytest-style
+    "PYI", # flake8-pyi
+    "Q", # flake8-quotes
+    "RET", # flake8-return
+    "RSE", # flake8-raise
+    "RUF", # Ruff-specific rules
+    "S", # flake8-bandit
+    "SIM", # flake8-simplify
+    "SLF", # flake8-self
+    "T10", # flake8-debugger
+    "T20", # flake8-print
+    "TCH", # flake8-type-checking
+    "TID", # flake8-tidy-imports
+    "TRY", # tryceratops
+    "UP", # pyupgrade
+    "W", # pycodestyle warnings
+    "YTT", # flake8-2020
+]
+
+ignore = [
+    'DJ001', # Django model text-based fields shouldn't be nullable
+    'FBT002', # Boolean default value in function definition
+    'BLE001', # Do not catch blind exception: `Exception
+    'RET504', # Unnecessary variable assignment before `return` statement
+    'SIM114', # Combine `if` branches using logical `or` operator
+
+]
+
+fixable = ["I", "Q000"]
+unfixable = []
+
+exclude = [
+    ".eggs",
+    ".git",
+    ".ruff_cache",
+    ".tox",
+    "__pypackages__",
+    "_build",
+    "venv",
+    "migrations"
+]
+
+[tool.ruff.isort]
+lines-after-imports = 2
+
+[tool.ruff.flake8-quotes]
+inline-quotes = "single"
+
+[tool.ruff.pylint]
+allow-magic-value-types = ["bytes", "int", "str"]
+max-args = 7
+
+###
+### PyLint
+###
+[tool.pylint.main]
+ignore = ".git"
+ignore-patterns = [
+    "local_settings.py",
+    "local_settings.docker.py",
+]
+persistent = false
+load-plugins=[
+    "pylint_django",
+    "pylint.extensions.bad_builtin",
+    "pylint.extensions.check_elif",
+    "pylint.extensions.comparetozero",
+    "pylint.extensions.emptystring",
+    "pylint.extensions.mccabe",
+    "pylint.extensions.overlapping_exceptions",
+    "pylint.extensions.redefined_variable_type",
+]
+
+[tool.pylint."messages control"]
+disable = [
+  "empty-docstring",
+  "logging-format-interpolation",
+  "missing-docstring",
+  "no-else-return",
+]
+
+[tool.pylint.reports]
+output-format = "parseable"
+reports = false
+
+[tool.pylint.format]
+max-line-length = 100
+
+[tool.pylint.variables]
+dummy-variables-rgx = "_|dummy"
+
+[tool.pylint.design]
+min-public-methods = 0
+max-attributes = 10
+max-args = 7
+max-parents = 9
+
+[tool.pylint.exceptions]
+overgeneral-exceptions = []
diff --git a/static_docs/apps.py b/static_docs/apps.py
index 7548c87..f4a63d8 100644
--- a/static_docs/apps.py
+++ b/static_docs/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -17,4 +16,4 @@
 
 class StaticDocsAppConfig(AppConfig):
     name = 'static_docs'
-    verbose_name = "Static Docs"
+    verbose_name = 'Static Docs'
diff --git a/static_docs/generate_i18n_statistics.py b/static_docs/generate_i18n_statistics.py
index 81d786e..37d756f 100644
--- a/static_docs/generate_i18n_statistics.py
+++ b/static_docs/generate_i18n_statistics.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -12,13 +11,13 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from json import dump, JSONEncoder
+import re
+from json import JSONEncoder, dump
 from os import listdir, makedirs
 from os.path import join, splitext
-from subprocess import CalledProcessError, check_output, STDOUT
+from subprocess import STDOUT, CalledProcessError, check_output
 from tempfile import TemporaryDirectory
 from time import time
-import re
 
 from babel import Locale, UnknownLocaleError
 
@@ -96,7 +95,7 @@ def _generate(self, temp_path):
         self._update_pot_file()
         self._fetch_pot_stats()
         self._fetch_message_catalogs()
-        for self._message_catalog in self._message_catalogs:
+        for self._message_catalog in self._message_catalogs:  # noqa: B020
             self._update_message_catalog()
             self._fetch_message_catalog_stats()
 
@@ -149,13 +148,13 @@ def _execute_command(self, command):
                 cwd=self._destination_path,
                 stderr=STDOUT)
             output_utf8 = output.decode('utf-8')
-            return output_utf8
         except CalledProcessError as exc:
             command_line = ' '.join(command)
             error_message = exc.output.decode('utf-8')
-            raise ValueError(
-                f'Command: "{command_line}" exited with code {exc.returncode}: {error_message}'
-            ) from exc
+            msg = f'Command: "{command_line}" exited with code {exc.returncode}: {error_message}'
+            raise ValueError(msg) from exc
+
+        return output_utf8
 
     # ----------------------------------------------------------------------
     def _fetch_pot_stats(self):
@@ -173,7 +172,8 @@ def _read_po_translation_statistics(self, filename):
             fuzzy = match.group('fuzzy')
             untranslated = match.group('untranslated')
         else:
-            raise ValueError(f'Unable to parse msgfmt output: {output}')
+            msg = f'Unable to parse msgfmt output: {output}'
+            raise ValueError(msg)
 
         return TranslationStatistics(
             translated=int(translated) if translated is not None else 0,
diff --git a/static_docs/github_client.py b/static_docs/github_client.py
index 205fdbf..0481b5b 100644
--- a/static_docs/github_client.py
+++ b/static_docs/github_client.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -12,8 +11,8 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from base64 import standard_b64decode, standard_b64encode
 import logging
+from base64 import standard_b64decode, standard_b64encode
 
 import requests
 
@@ -46,13 +45,13 @@ def get_file_contents(self, filename, user=None, repository=None):
 
     # ----------------------------------------------------------------------
     def _request(self, url, status_404_expected=False):
-        request_args = {'timeout': HTTP_REQUEST_TIMEOUT, 'stream': False}
+        request_args = {'stream': False}
         if self._auth_token is not None:
             authorization_header = self._factor_authorization_header()
             request_args['headers'] = authorization_header
 
         try:
-            with requests.get(url, **request_args) as response:
+            with requests.get(url, timeout=HTTP_REQUEST_TIMEOUT, **request_args) as response:
                 self._log_request(response, status_404_expected)
                 self._log_rate_limit(response)
                 # error out on 4xx and 5xx status codes
@@ -60,8 +59,8 @@ def _request(self, url, status_404_expected=False):
         except requests.exceptions.HTTPError as exc:
             if exc.response.status_code == 404 and status_404_expected:
                 return None
-            else:
-                raise
+
+            raise
 
         return response
 
diff --git a/static_docs/management/commands/generate_i18n_statistics.py b/static_docs/management/commands/generate_i18n_statistics.py
index b05f7aa..0f35593 100644
--- a/static_docs/management/commands/generate_i18n_statistics.py
+++ b/static_docs/management/commands/generate_i18n_statistics.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -19,7 +18,7 @@
 
 
 class Command(BaseCommand):
-    help = "Generate a JSON file with I18N statistics after updating PO files"
+    help = 'Generate a JSON file with I18N statistics after updating PO files'  # noqa: A003
 
     # ----------------------------------------------------------------------
     def handle(self, *args, **options):
diff --git a/static_docs/views.py b/static_docs/views.py
index fcbd206..92b26d4 100644
--- a/static_docs/views.py
+++ b/static_docs/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
@@ -12,11 +11,11 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from datetime import datetime
 import json
 import logging
 import os.path
 import re
+from datetime import datetime, timezone
 
 from django.conf import settings
 from django.core.cache import cache
@@ -25,10 +24,10 @@
 from mezzanine_pagedown.filters import plain as markdown_plain
 
 from geany.decorators import (
-    cache_function,
     CACHE_KEY_STATIC_DOCS_RELEASE_NOTES,
     CACHE_TIMEOUT_1HOUR,
     CACHE_TIMEOUT_24HOURS,
+    cache_function,
 )
 from static_docs.github_client import GitHubApiClient
 
@@ -118,7 +117,7 @@ def _parse_news_file(self):
                 releases.append(current_release)
                 current_release_notes = []
             else:
-                line = line.lstrip()  # remove any indentation
+                line = line.lstrip()  # noqa: PLW2901 - remove any indentation
                 if line and not line.startswith('*'):
                     # we got a section: make it bold and add an additional new line
                     # to make Markdown recognise the following lines as list
@@ -165,7 +164,7 @@ def _get_release_notes_for_version(self, releases, version=None):
                         release = rel
                         break
                 else:
-                    raise Http404()
+                    raise Http404
 
         # convert the selected release (the one we want to display) to Markdown
         release.release_notes = markdown_plain(release.release_notes)
@@ -185,7 +184,8 @@ def _get_release_from_github(self, version=None):
             return None
 
         # adapt date
-        release_datetime = datetime.strptime(github_release['published_at'], '%Y-%m-%dT%H:%M:%SZ')
+        release_datetime = datetime.strptime(github_release['published_at'], '%Y-%m-%dT%H:%M:%SZ')\
+            .astimezone(tz=timezone.utc)
         release_date = release_datetime.strftime('%B %d, %Y')
 
         release = ReleaseDto()
@@ -207,7 +207,7 @@ class ToDoView(StaticDocsView):
     Grab the TODO file from GIT master via Github API, parse it and send it back to the template
     """
 
-    template_name = "pages/documentation/todo.html"
+    template_name = 'pages/documentation/todo.html'
 
     # ----------------------------------------------------------------------
     def get_context_data(self, **kwargs):
@@ -229,15 +229,15 @@ def _parse_news_file(self):
 
 class I18NStatisticsView(TemplateView):
 
-    template_name = "pages/i18n.html"
+    template_name = 'pages/i18n.html'
 
     # ----------------------------------------------------------------------
     def get_context_data(self, **kwargs):
         i18n_statistics = self._get_i18n_statistics()
         context = super().get_context_data(**kwargs)
         context['i18n_statistics'] = i18n_statistics
-        context['generated_datetime'] = datetime.utcfromtimestamp(
-            i18n_statistics['generated_timestamp'])
+        context['generated_datetime'] = datetime.fromtimestamp(
+            i18n_statistics['generated_timestamp'], tz=timezone.utc)
         context['static_docs_geany_destination_url'] = settings.STATIC_DOCS_GEANY_DESTINATION_URL
         return context
 
@@ -256,7 +256,7 @@ class ThemesView(StaticDocsView):
     Fetch the Geany-Themes index from https://github.com/geany/geany-themes/tree/master/index
     """
 
-    template_name = "pages/download/themes.html"
+    template_name = 'pages/download/themes.html'
 
     # ----------------------------------------------------------------------
     def get_context_data(self, **kwargs):
diff --git a/tox.ini b/tox.ini
index 6e6ca77..f1ba9e0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -15,21 +15,19 @@
 skip_missing_interpreters = true
 skipsdist = true
 envlist =
-    safety,py37,py38,py39,py310
+    safety,py39,py310,py311
 
 geany_modules = geany latest_version news nightlybuilds pastebin static_docs
 
 [testenv]
 deps =
-    flake8
-    isort
+    ruff
     pylint
     pylint-django
     -r{toxinidir}/requirements.txt
 commands =
-    {envbindir}/flake8 {[tox]geany_modules}
-    {envbindir}/isort --check-only --diff {[tox]geany_modules}
-    {envbindir}/pylint --rcfile=tox.ini --django-settings-module=geany.settings {[tox]geany_modules}
+    {envbindir}/ruff check {[tox]geany_modules}
+    {envbindir}/pylint --rcfile=pyproject.toml --django-settings-module=geany.settings {[tox]geany_modules}
 
 [testenv:safety]
 deps =
@@ -37,61 +35,3 @@ deps =
     -r{toxinidir}/requirements.txt
 commands =
     {envbindir}/safety check
-
-[flake8]
-exclude = build,.git,docs,migrations,local_settings.py,local_settings.docker.py
-ignore = E127,E128,
-max-line-length = 100
-
-[isort]
-line_length = 100
-indent = 4
-multi_line_output = 3
-length_sort = false
-force_alphabetical_sort_within_sections = true
-sections = FUTURE,STDLIB,THIRDPARTY,FIRSTPARTY,LOCALFOLDER
-lines_after_imports = 2
-from_first = true
-include_trailing_comma = true
-skip = local_settings.py,local_settings.docker.py
-
-# the following sections are for pylint
-[pylint.main]
-ignore=.git
-ignore-patterns=local_settings.py,local_settings.docker.py
-persistent=no
-load-plugins=
-    pylint_django,
-    pylint.extensions.bad_builtin,
-    pylint.extensions.check_elif,
-    pylint.extensions.comparetozero,
-    pylint.extensions.emptystring,
-    pylint.extensions.mccabe,
-    pylint.extensions.overlapping_exceptions,
-    pylint.extensions.redefined_variable_type
-
-[pylint]
-disable=
-  empty-docstring,
-  logging-format-interpolation,
-  missing-docstring,
-  no-else-return
-
-[pylint.reports]
-output-format=parseable
-reports=no
-
-[pylint.format]
-max-line-length=100
-
-[pylint.variables]
-dummy-variables-rgx=_|dummy
-
-[pylint.design]
-min-public-methods=0
-max-attributes=10
-max-args=7
-max-parents=9
-
-[pylint.exceptions]
-overgeneral-exceptions=
diff --git a/urlshortener/apps.py b/urlshortener/apps.py
index c5fea0b..33d31b0 100644
--- a/urlshortener/apps.py
+++ b/urlshortener/apps.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/urlshortener/urls.py b/urlshortener/urls.py
index 775748c..6f58577 100644
--- a/urlshortener/urls.py
+++ b/urlshortener/urls.py
@@ -1,4 +1,3 @@
-# coding: utf-8
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/urlshortener/views.py b/urlshortener/views.py
index 7723b96..42ed757 100644
--- a/urlshortener/views.py
+++ b/urlshortener/views.py
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
diff --git a/uwsgi.ini b/uwsgi.ini
index 06c6347..7fc6cea 100644
--- a/uwsgi.ini
+++ b/uwsgi.ini
@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 # LICENCE: This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or