PyCS/backend/pycs_backend/settings/media.py

import os

from .base import BASE_DIR

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/

STATIC_URL = '/static/'

STATIC_DIR = os.environ.get("PYCS_STATIC_DIR", BASE_DIR / "static")

STATICFILES_DIRS = [
    STATIC_DIR,
]