diff --git a/app/e11sync/settings.py b/app/e11sync/settings.py
index c56ba69..73178ea 100644
--- a/app/e11sync/settings.py
+++ b/app/e11sync/settings.py
@@ -1,17 +1,21 @@
 from pathlib import Path
 from os import environ
 
+# All that comes from the environment needs to be defined here
+_DEBUG = bool(environ.get('E11SYNC_DEBUG', False))
+_STATIC_ROOT = environ.get('E11SYNC_STATIC_ROOT', '/tmp/e11sync-static')
+_GEOIP_PATH = environ.get("GEOIP_PATH")
+
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-# Quick-start development settings - unsuitable for production
-# See https://docs.djangoproject.com/en/5.0/howto/deployment/checklist/
+########################################
+## No more side effects after this place
+########################################
 
-# SECURITY WARNING: keep the secret key used in production secret!
 SECRET_KEY = 'django-insecure-$e2!=equ(efm0e%f9&t+xjtz0)$*$@pw%rnjdqcl8f@5o5hw!l'
 
-# SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = True
+DEBUG = _DEBUG
 
 ALLOWED_HOSTS = []
 
@@ -19,8 +23,7 @@ INTERNAL_IPS = ["127.0.0.1"]
 
 # Application definition
 
-INSTALLED_APPS = [
-    'debug_toolbar',
+INSTALLED_APPS = (['debug_toolbar'] if DEBUG else []) + [
     'compressor',
     'signup.apps.SignupConfig',
  
@@ -32,9 +35,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
 ]
 
-MIDDLEWARE = [
-    'debug_toolbar.middleware.DebugToolbarMiddleware',
-
+MIDDLEWARE = (['debug_toolbar.middleware.DebugToolbarMiddleware'] if DEBUG else []) + [
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.middleware.common.CommonMiddleware',
@@ -102,7 +103,7 @@ STATICFILES_FINDERS = [
     "compressor.finders.CompressorFinder",
 ]
 
-STATIC_ROOT = '/tmp/e11sync-static'
+STATIC_ROOT = _STATIC_ROOT
 
 COMPRESS_PRECOMPILERS = (
     # TODO: --style=compressed + source maps
@@ -126,4 +127,4 @@ LOGGING = {
     },
 }
 
-GEOIP_PATH = environ["GEOIP_PATH"]
+GEOIP_PATH = _GEOIP_PATH
diff --git a/app/manage.py b/app/manage.py
index cbf2c82..b5c8355 100755
--- a/app/manage.py
+++ b/app/manage.py
@@ -3,7 +3,6 @@
 import os
 import sys
 
-
 def main():
     """Run administrative tasks."""
     os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'e11sync.settings')
diff --git a/flake.nix b/flake.nix
index 107ff5a..3927e6e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -52,9 +52,28 @@
         '';
       };
     in {
+      packages.e11sync-static = pkgs.stdenv.mkDerivation {
+        name = "e11sync-static";
+        src = self;
+        nativeBuildInputs = with pkgs; [
+            python3Packages.django_5
+            python3Packages.django-compressor
+            dart-sass
+            python3
+        ];
+        buildPhase = ''
+            mkdir -p $out/static
+            env \
+                E11SYNC_STATIC_ROOT=$out/static \
+                E11SYNC_DEBUG= \
+                ${pkgs.python3}/bin/python3 \
+                ${self}/app/manage.py collectstatic
+        '';
+      };
       devShells.default = pkgs.mkShellNoCC {
         LOCALE_ARCHIVE = "${pkgs.glibcLocales}/lib/locale/locale-archive";
         GEOIP_PATH = "${geoip}";
+        E11SYNC_DEBUG = "1";
         packages = devDeps;
       };