📰 Dev.to · Ray
Articles from Dev.to · Ray · 35 articles · Updated every 3 hours · View all reads
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Dev.to · Ray
1w ago
Vanilla JS is still King: 96/100 Performance Car Showroom Template (No Frameworks)
Honestly, I'm tired of bloated frameworks 🗿 I built this Car Showroom template using only Pure...
Dev.to · Ray
1w ago
I Ran 10 Trading Strategies for 30 Days — Here Is What Actually Worked
I Ran 10 Trading Strategies for 30 Days — Here's What Actually Worked I built a paper...
Dev.to · Ray
1w ago
Stop Paying for Monitoring: The Self-Hosted Stack for Indie SaaS Founders
Stop Paying for Monitoring: The Self-Hosted Stack for Indie SaaS Founders I'm going to say...
Dev.to · Ray
1w ago
Self-Hosted Stripe Billing Monitor vs PagerDuty: Real Cost Breakdown
Self-Hosted Stripe Billing Monitor vs PagerDuty: Real Cost...
Dev.to · Ray
1w ago
5 Things Paper Trading Taught Me That Backtesting Can't
5 Things Paper Trading Taught Me That Backtesting...
Dev.to · Ray
1w ago
"Why Your Paper Trading Backtests Are Lying to You (And How to Fix It)"
Why Your Paper Trading Backtests Are Lying to You (And How to Fix It) You ran the...
Dev.to · Ray
1w ago
"5 Python Libraries That Power My Self-Hosted Billing Monitor"
5 Python Libraries That Power My Self-Hosted Billing Monitor When I started building...
Dev.to · Ray
1w ago
Scaling a Self-Hosted Billing Monitor from 1 to 100 Tenants
When I built BillingWatch, I designed it for a single Stripe account. Then people started asking...
Dev.to · Ray
1w ago
The Hidden Costs of Paper Trading: What 6 Weeks of Data Showed
As developers, we're often tempted to test our trading strategies using paper trading platforms....
Dev.to · Ray
1w ago
I built a self-hosted Stripe anomaly detector after missing a billing bug for 3 days
Three days. That's how long a billing anomaly can go unnoticed if you're only watching Stripe's...
Dev.to · Ray
1w ago
I ran a self-hosted AI trading strategy lab for 30 days. Here is what happened.
I've been running TradeSight — a self-hosted Python app that runs AI strategy tournaments overnight —...
Dev.to · Ray
1w ago
I Ran a 4-Strategy AI Trading Tournament in Paper Trading — Here's Who Won
The Tournament Idea Every algo trader has opinions about which strategy is better. RSI...
Dev.to · Ray
1w ago
5 Backtesting Mistakes That Make Your Algo Look Like a Money Printer (Until It Isn't)
A 16-year-old just posted a forex algo on Reddit with a Sharpe ratio of 7.78 over 25 years. Zero...
Dev.to · Ray
1w ago
I Compared 5 Python Trading Strategies Head-to-Head Using Overnight Tournaments
I've been running automated paper trading for a while now, and one thing I kept running into: which...
Dev.to · Ray
1w ago
"Self-Hosting Stripe Anomaly Detection: Building a Multi-Tenant BillingWatch with FastAPI"
Why Self-Host Billing Monitoring? SaaS billing monitoring tools exist. They're fine. They...
Dev.to · Ray
1w ago
"How I Built an Overnight Strategy Tournament System for Algorithmic Paper Trading"
The Problem With Testing Trading Strategies As a trader, testing multiple strategies is...
Dev.to · Ray
1w ago
How I Built a Real-Time Stripe Webhook Anomaly Detector (Architecture + Code)
Stripe webhooks are the nervous system of any subscription business. When they work, everything is...
Dev.to · Ray
1w ago
I Ran a 4-Strategy AI Trading Tournament in Paper Trading — Here's Who Won
RSI vs MACD vs Bollinger vs AI Confluence — run head-to-head in paper trading. Here is what the data actually showed.
Dev.to · Ray
2w ago
30 nights of automated paper trading: what worked and what didn't
A retrospective on running overnight strategy tournaments with TradeSight and Alpaca paper trading.
Dev.to · Ray
2w ago
How to catch Stripe billing bugs before they cost you money
A step-by-step guide on setting up BillingWatch to detect common Stripe billing errors.
Dev.to · Ray
2w ago
How I Combined Polymarket Prediction Markets with Stock Technical Analysis in Python
Most algo trading tools focus on one market. I built TradeSight to scan both Polymarket prediction markets and stocks simultaneously — here is how the architect
Dev.to · Ray
2w ago
How My Trading Bot Evolves Its Own RSI Strategy Overnight (Without Me Touching It)
A deep-dive into TradeSight's overnight tournament system — how RSI parameter sweeping, Sharpe ratio ranking, and automated strategy selection work in practice.
Dev.to · Ray
2w ago
I built an overnight strategy tournament to find the best trading algorithm while I sleep
I built TradeSight — a self-hosted Python platform for algorithmic paper trading that runs overnight...
Dev.to · Ray
2w ago
"How My Trading Bot Evolves Its Own RSI Strategy Overnight (Without Me Touching It)"
How My Trading Bot Evolves Its Own RSI Strategy Overnight (Without Me Touching It) Most...
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