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📰 Dev.to · Ray

39 articles · Updated every 3 hours · View all reads

All Articles 177,568Blog Posts 163,973Tech Tutorials 47,394Research Papers 34,907News 22,296 ⚡ AI Lessons
Vanilla JS is still King: 96/100 Performance Car Showroom Template (No Frameworks)
Dev.to · Ray 🌐 Frontend Engineering ⚡ AI Lesson 5mo 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...
I Ran 10 Trading Strategies for 30 Days — Here Is What Actually Worked
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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...
Stop Paying for Monitoring: The Self-Hosted Stack for Indie SaaS Founders
Dev.to · Ray ☁️ DevOps & Cloud ⚡ AI Lesson 5mo 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...
Self-Hosted Stripe Billing Monitor vs PagerDuty: Real Cost Breakdown
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo ago
Self-Hosted Stripe Billing Monitor vs PagerDuty: Real Cost Breakdown
Self-Hosted Stripe Billing Monitor vs PagerDuty: Real Cost...
5 Things Paper Trading Taught Me That Backtesting Can't
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo ago
5 Things Paper Trading Taught Me That Backtesting Can't
5 Things Paper Trading Taught Me That Backtesting...
"Why Your Paper Trading Backtests Are Lying to You (And How to Fix It)"
Dev.to · Ray 📐 ML Fundamentals ⚡ AI Lesson 5mo 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...
"5 Python Libraries That Power My Self-Hosted Billing Monitor"
Dev.to · Ray 🔧 Backend Engineering ⚡ AI Lesson 5mo 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...
Scaling a Self-Hosted Billing Monitor from 1 to 100 Tenants
Dev.to · Ray 🔧 Backend Engineering ⚡ AI Lesson 5mo 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...
The Hidden Costs of Paper Trading: What 6 Weeks of Data Showed
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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....
I built a self-hosted Stripe anomaly detector after missing a billing bug for 3 days
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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...
I ran a self-hosted AI trading strategy lab for 30 days. Here is what happened.
Dev.to · Ray 🤖 AI Agents & Automation ⚡ AI Lesson 5mo 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 —...
I Ran a 4-Strategy AI Trading Tournament in Paper Trading — Here's Who Won
Dev.to · Ray 📰 AI News & Updates ⚡ AI Lesson 5mo 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...
5 Backtesting Mistakes That Make Your Algo Look Like a Money Printer (Until It Isn't)
Dev.to · Ray 📐 ML Fundamentals ⚡ AI Lesson 5mo 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...
I Compared 5 Python Trading Strategies Head-to-Head Using Overnight Tournaments
Dev.to · Ray 📐 ML Fundamentals ⚡ AI Lesson 5mo 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...
"Self-Hosting Stripe Anomaly Detection: Building a Multi-Tenant BillingWatch with FastAPI"
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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...
"How I Built an Overnight Strategy Tournament System for Algorithmic Paper Trading"
Dev.to · Ray 🔧 Backend Engineering ⚡ AI Lesson 5mo 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...
How I Built a Real-Time Stripe Webhook Anomaly Detector (Architecture + Code)
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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...
I Ran a 4-Strategy AI Trading Tournament in Paper Trading — Here's Who Won
Dev.to · Ray 🤖 AI Agents & Automation ⚡ AI Lesson 5mo 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.
30 nights of automated paper trading: what worked and what didn't
Dev.to · Ray 🤖 AI Agents & Automation ⚡ AI Lesson 5mo 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.
How to catch Stripe billing bugs before they cost you money
Dev.to · Ray 📣 Digital Marketing & Growth ⚡ AI Lesson 5mo 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.