PixelFed .env Setup: Postgresql DB, Mailgun for EMail, ActivityPub enabled

.env

APP_NAME="PixelFed"
APP_ENV=production
APP_KEY=base64:alfkajsdflajsflkasjdlfajsdlfjasdsflasdjkf
APP_DEBUG=true
APP_URL=https://yourdomain.com

ADMIN_DOMAIN="yourdomain.com"
APP_DOMAIN="yourdomain.com"

LOG_CHANNEL=stack

DB_CONNECTION=pgsql
DB_HOST=127.0.0.1
DB_PORT=5432
DB_DATABASE=pixelfed_prod
DB_USERNAME=pixelfed
DB_PASSWORD="kasdhfaklsdfhaklsdjfhalksdf"

BROADCAST_DRIVER=log
CACHE_DRIVER=redis
SESSION_DRIVER=redis
SESSION_LIFETIME=120
QUEUE_DRIVER=redis

REDIS_HOST=127.0.0.1
REDIS_PASSWORD=null
REDIS_PORT=6379

MAIL_DRIVER=smtp
MAIL_HOST=smtp.mailgun.org
MAIL_PORT=2525
MAIL_USERNAME=postmaster@mg.yourdomain.com
MAIL_PASSWORD=aksjdfhaklsjdfhaklsjdhfklasjdhfklasd
MAIL_ENCRYPTION=null
MAILGUN_DOMAIN=mg.yourdomain.com
MAILGUN_SECRET=key-askldfhajklsdhfklajsdhfklajsdhf
MAIL_FROM_ADDRESS="admin@yourdomain.com"
MAIL_FROM_NAME="Pixelfed Adminstrator"

SESSION_DOMAIN="${APP_DOMAIN}"
SESSION_SECURE_COOKIE=true
API_BASE="/api/1/"
API_SEARCH="/api/search"

OPEN_REGISTRATION=false
RECAPTCHA_ENABLED=false
ENFORCE_EMAIL_VERIFICATION=true

MAX_PHOTO_SIZE=15000
MAX_CAPTION_LENGTH=150
MAX_ALBUM_LENGTH=4

MIX_PUSHER_APP_KEY="${PUSHER_APP_KEY}"
MIX_PUSHER_APP_CLUSTER="${PUSHER_APP_CLUSTER}"
MIX_APP_URL="${APP_URL}"
MIX_API_BASE="${API_BASE}"
MIX_API_SEARCH="${API_SEARCH}"

ACTIVITYPUB_INBOX=true
ACTIVITYPUB_SHAREDINBOX=true
HORIZON_DARKMODE=true

# Set these both "true" to enable federation.
# You might need to also run:
#   php artisan cache:clear
#   php artisan optimize:clear
#   php artisan optimize
ACTIVITY_PUB=true
REMOTE_FOLLOW=true