diff --git a/.devcontainer/docker-compose.yml b/.devcontainer/docker-compose.yml
index 36c37f4..06b3c51 100644
--- a/.devcontainer/docker-compose.yml
+++ b/.devcontainer/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '3'
+version: "3"
 services:
   # Update this to the name of the service you want to work with in your docker-compose.yml file
   web:
@@ -30,11 +30,10 @@ services:
       - SPEJSTORE_DB_PASSWORD=postgres
       - SPEJSTORE_DB_HOST=db
       # - SPEJSTORE_DB_PORT=
-      - SPEJSTORE_ALLOWED_HOSTS=localhost,127.0.0.1
+      - SPEJSTORE_ALLOWED_HOSTS=localhost,127.0.0.1,0.0.0.0
       # - SPEJSTORE_CLIENT_ID=
       # - SPEJSTORE_SECRET=
       # - SPEJSTORE_MEDIA_ROOT=
       # - SPEJSTORE_REQUIRE_AUTH=true
       - SPEJSTORE_OAUTH_REDIRECT_IS_HTTPS=false
-      - SPEJSTORE_PROXY_TRUSTED_IPS=172.21.37.1
-
+      # - SPEJSTORE_PROXY_TRUSTED_IPS=172.21.37.1
diff --git a/.env.example b/.env.example
index e348cde..0e65570 100644
--- a/.env.example
+++ b/.env.example
@@ -7,3 +7,14 @@ SPEJSTORE_DB_USER=postgres
 SPEJSTORE_DB_HOST=db
 SPEJSTORE_HOST="https://inventory.hackerspace.pl"
 SPEJSTORE_LABEL_API=https://label.waw.hackerspace.pl
+
+
+# "filesystem" or "s3"
+SPEJSTORE_FILE_STORAGE_TYPE="filesystem"
+
+# S3 bucket
+SPEJSTORE_S3_ACCESS_KEY="SPEJSTORE_S3_ACCESS_KEY"
+SPEJSTORE_S3_SECRET_KEY="SPEJSTORE_S3_SECRET_KEY"
+SPEJSTORE_S3_ENDPOINT_URL="SPEJSTORE_S3_ENDPOINT_URL"
+SPEJSTORE_S3_BUCKET_NAME="SPEJSTORE_S3_BUCKET_NAME"
+SPEJSTORE_S3_MEDIA_LOCATION="SPEJSTORE_S3_MEDIA_LOCATION"
diff --git a/docker-compose.dev-override.yml b/docker-compose.dev-override.yml
deleted file mode 100644
index ffa8675..0000000
--- a/docker-compose.dev-override.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-version: "3"
-services:
-  web:
-    environment:
-      - SPEJSTORE_ENV=dev
-      - SPEJSTORE_DB_NAME=postgres
-      - SPEJSTORE_DB_USER=postgres
-      - SPEJSTORE_DB_PASSWORD=postgres
-      - SPEJSTORE_DB_HOST=db
-      # - SPEJSTORE_DB_PORT=
-      - SPEJSTORE_ALLOWED_HOSTS=localhost,127.0.0.1
-      # - SPEJSTORE_CLIENT_ID=
-      # - SPEJSTORE_SECRET=
-      # - SPEJSTORE_MEDIA_ROOT=
-      # - SPEJSTORE_REQUIRE_AUTH=true
-      - SPEJSTORE_OAUTH_REDIRECT_IS_HTTPS=false
-      - SPEJSTORE_PROXY_TRUSTED_IPS=172.21.37.1
diff --git a/docker-compose.prod-override.yml b/docker-compose.prod-override.yml
deleted file mode 100644
index 8826d7a..0000000
--- a/docker-compose.prod-override.yml
+++ /dev/null
@@ -1,8 +0,0 @@
-version: "3"
-
-services:
-  db:
-    volumes:
-      - /var/spejstore-data-new:/var/lib/postgresql/data
-  web:
-    build: .
diff --git a/spejstore/settings.py b/spejstore/settings.py
index e2ab05b..0499d01 100644
--- a/spejstore/settings.py
+++ b/spejstore/settings.py
@@ -1,15 +1,3 @@
-"""
-Django settings for spejstore project.
-
-Generated by 'django-admin startproject' using Django 1.10.1.
-
-For more information on this file, see
-https://docs.djangoproject.com/en/1.10/topics/settings/
-
-For the full list of settings and their values, see
-https://docs.djangoproject.com/en/1.10/ref/settings/
-"""
-
 import os
 
 
@@ -51,7 +39,7 @@ INSTALLED_APPS = [
     "django.contrib.messages",
     "django.contrib.staticfiles",
     "django.contrib.postgres",
-    "storages", # django-storages s3boto support
+    "storages",  # django-storages s3boto support
     "social_django",
     "tree",
     "django_select2",
@@ -171,6 +159,11 @@ SOCIAL_AUTH_PIPELINE = (
 
 # Determines the storage type for Django static files and media.
 FILE_STORAGE_TYPE = env("FILE_STORAGE_TYPE", "filesystem")
+
+# Make sure we check for correct file storage type
+if not (FILE_STORAGE_TYPE == "filesystem" or FILE_STORAGE_TYPE == "s3"):
+    raise Exception("SPEJSTORE_FILE_STORAGE_TYPE must be 'filesystem' or 's3' ")
+
 if FILE_STORAGE_TYPE == "filesystem":
     STORAGES = {
         "default": {