Initial dev branch commit

.env.example

@@ -1,17 +0,0 @@
-# Since the ".env" file is gitignored, you can use the ".env.example" file to
-# build a new ".env" file when you clone the repo. Keep this file up-to-date
-# when you add new variables to `.env`.
-
-# This file will be committed to version control, so make sure not to have any
-# secrets in it. If you are cloning this repo, create a copy of this file named
-# ".env" and populate it with your secrets.
-
-# When adding additional environment variables, the schema in "/src/env.js"
-# should be updated accordingly.
-
-# Drizzle
-DATABASE_URL="postgresql://postgres:password@localhost:5432/wavelength_server"
-
-# Example:
-# SERVERVAR="foo"
-# NEXT_PUBLIC_CLIENTVAR="bar"

websocket_server/src/server.ts

@@ -1,7 +1,8 @@
 import express from 'express';
 import { Server } from 'socket.io';
 import { createServer } from 'http';
-import { Client, Notification } from 'pg'; 
+import { Client } from 'pg'; 
+import type { Notification } from 'pg';
 import dotenv from 'dotenv';
 dotenv.config();
 
@@ -11,7 +12,7 @@ const httpServer = createServer(app);
 // Create new Socket.IO server
 const io = new Server(httpServer);
 
-const PORT = process.env.PORT || 3030;
+const PORT = process.env.PORT ?? 3020;
 
 const pgClient = new Client({
   connectionString: process.env.DATABASE_URL,