Built a paper trading platform as a side project, but it got way out of hand

Started this thing about 3 months ago as a simple paper trading app. Wanted something to practice trading without losing real money. Then I kept adding features and now it’s turned into this massive platform I’m calling Nexus Signal.

Here’s what it does now:

Trading:

∙	$100K virtual cash to start

∙	Stocks and crypto

∙	Long/short positions with up to 10x leverage

∙	Take profit, stop loss, trailing stops

∙	Real-time prices from CoinGecko, GeckoTerminal, Binance, Yahoo Finance

Tools:

∙	Stock and crypto screener

∙	Watchlists

∙	Charts and analytics

∙	Can also connect your real portfolio to track

AI:

∙	Price predictions

∙	GPT-4 chat for trading questions

∙	Pattern detection

Alerts:

∙	Whale alerts for big money movements

∙	Price notifications

∙	Dark pool tracking

Gamification (this is where I lost control):

∙	100+ achievements

∙	31 badges across 6 rarity tiers

∙	XP and leveling

∙	Daily login rewards with streak bonuses up to 365 days

∙	5% jackpot chance each day

∙	Vault system with unlockable themes, animated avatar borders, perks

Social:

∙	Feed with posts/comments/likes

∙	Follow traders

∙	Leaderboards

∙	Public profiles with badge showcases

Tech stack is React, Node, Express, MongoDB. Deployed on Vercel.

Launching March 2026.

Site’s up at nexussignal.ai if you want to look around.

This has been my nights and weekends for a while now. Would love to hear what you guys think or if there’s anything obvious I’m missing.