FEATURE (installation): Add installation script

docker-compose.yml.example

@@ -0,0 +1,31 @@
+version: "3"
+
+# Do not use this file in production or VPS. This
+# file is indended for local development only. To 
+# run on your machine - read README.md
+
+services:
+  # For local development only to test build. Do
+  # not use in production or VPS
+  postgresus-local:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - "4005:4005"
+    depends_on:
+      - postgresus-db
+
+  postgresus-db:
+    image: postgres:17
+    # we use default values, but do not expose
+    # PostgreSQL ports so it is safe
+    environment:
+      - POSTGRES_DB=postgresus
+      - POSTGRES_USER=postgresus
+      - POSTGRES_PASSWORD=postgresus
+    volumes:
+      - ./pgdata:/var/lib/postgresql/data
+    container_name: postgresus-db
+    command: -p 5437
+    shm_size: 10gb