WIP for activity modeling and migration.

local-dev/compose.yml

@@ -0,0 +1,11 @@
+services:
+  postgres:
+    image: postgres:15
+    ports:
+      - 5432:5432
+    environment:
+      POSTGRES_USER: vibing
+      POSTGRES_PASSWORD: vibing
+      POSTGRES_DB: vibing
+    volumes:
+      - postgres_data:/var/lib/postgresql/data