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⚡ AI Lessons

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
4d ago
PDF Tamper Detection API for Java: Spring Boot Integration Guide
Integrate the HTPBE PDF tamper detection API into Spring Boot: a RestClient @Service, a typed record DTO, retry on 5xx/429, and a bank-statement fraud…

Dev.to · Iurii Rogulia
⚡ AI Lesson
4d ago
Feature Flags Without LaunchDarkly: A 100-Line Solution
Feature flags without LaunchDarkly: a Postgres-backed, ~100-line system with deterministic percentage rollout, per-tenant overrides, and caching.

Dev.to · Iurii Rogulia
🔐 Cybersecurity
⚡ AI Lesson
5d ago
Adobe Producer Spoofing: A PDF Metadata Forgery Case Study
How forgers launder edited PDFs by faking an Adobe Producer string — and how structural forensics catches the contradiction between the claim and…

Dev.to · Iurii Rogulia
💻 AI-Assisted Coding
⚡ AI Lesson
1w ago
My Checklist for Reviewing AI-Generated Code
A senior's checklist for reviewing AI-generated code, ordered by cost of error — the bugs that read perfectly and pass a normal eyeball review.

Dev.to · Iurii Rogulia
⚡ AI Lesson
1w ago
Deterministic Wrong: Why a Viral Web Toy Must Be Wrong the Same Way Every Time
Deterministic random in JavaScript: why a viral web toy dies if it uses Math.random(), and how FNV-1a + mulberry32 make the same wrong answer reproducible…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
1w ago
Stripe to Mollie Migration: What Actually Breaks
Stripe to Mollie migration in production: mandates instead of Subscriptions, thin webhooks, no proration, no portal, no Tax. What you rebuild yourself.

Dev.to · Iurii Rogulia
🔧 Backend Engineering
⚡ AI Lesson
2w ago
PDF Tamper Detection API for Laravel and PHP: Integration Guide
Integrate the HTPBE PDF tamper detection API into a Laravel or PHP app: curl, Guzzle, typed Service Provider, Form Request validation, queued jobs and…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
2w ago
Batch PDF Verification at Scale: Async Queue Patterns for the HTPBE API
Batch PDF verification with BullMQ: wrap the synchronous PDF tamper detection API in a job queue with concurrency control, 429 Retry-After backoff…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
2w ago
PDF Tamper Detection in Next.js: App Router Integration Guide
Integrate PDF tamper detection into a Next.js App Router app: Node.js route handlers, presigned R2 uploads, server-side analyze + result calls, error…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
2w ago
Building a Document Fraud Detection Workflow for Fintech: Beyond KYC
Document fraud detection workflow for fintech: identity, open banking and PDF integrity as three independent layers. Routing logic, TypeScript…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
2w ago
Best Headless CRM in 2026: Twenty vs EspoCRM vs Custom Build
Headless CRM comparison 2026: Twenty vs EspoCRM vs DIY on Postgres. Real trade-offs on schema flexibility, integration, cost, and ecosystem risk.

Dev.to · Iurii Rogulia
⚡ AI Lesson
2w ago
I Built a 30-Line Chrome Extension to Kill the YouTube Feed
How I built a tiny Manifest V3 Chrome extension that redirects the YouTube homepage feed without breaking search, videos, or subscriptions —…

Dev.to · Iurii Rogulia
🛡️ AI Safety & Ethics
⚡ AI Lesson
3w ago
Bank Statement Fraud in Lending: What Gets Altered and How to Catch It
Bank statement fraud in lending: borrowers edit balances, deposits and overdrafts before upload. Three structural signals — xref count, producer…

Dev.to · Iurii Rogulia
🔐 Cybersecurity
⚡ AI Lesson
3w ago
PDF Font Subset Divergence: Forensic Tampering Detection
PDF font subset divergence reveals page-assembly fraud without the original file. Learn how font forensics detects tampering in multi-page documents —…

Dev.to · Iurii Rogulia
⚡ AI Lesson
3w ago
PostgreSQL Production Checklist: UUIDs, RLS, Indexes, Pooling
PostgreSQL production patterns: UUID v7, soft deletes, RLS for multi-tenant SaaS, partial and covering indexes, PgBouncer connection pooling, and…

Dev.to · Iurii Rogulia
🔧 Backend Engineering
⚡ AI Lesson
3w ago
BullMQ vs pg-boss vs Cron: Node.js Background Jobs Compared
BullMQ vs pg-boss vs node-cron for Node.js background jobs. Trade-offs between Redis and Postgres queues, retries, deduplication, and production…

Dev.to · Iurii Rogulia
💰 FinTech & AI for Finance Professionals
⚡ AI Lesson
4w ago
GDPR Document Fraud Detection API: EU Fintech Compliance Guide
How a GDPR compliant document fraud detection API works for EU fintech teams: structural-only analysis, data minimisation, DPA obligations, and DPIA…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
1mo ago
PDF Forensics API Pricing in 2026: A Transparent Breakdown
PDF forensics API pricing in 2026: document fraud detection API costs compared. HTPBE self-serve from $15/mo vs. sales-gated competitors. No demo required.

Dev.to · Iurii Rogulia
💻 AI-Assisted Coding
⚡ AI Lesson
1mo ago
AI Document Processing in Production: Full Pipeline Guide
AI document processing in production: full PDF pipeline — OCR fallbacks, structured output, validation, cost at scale. Beyond naive GPT calls.

Dev.to · Iurii Rogulia
🛠️ AI Tools & Apps
⚡ AI Lesson
1mo ago
How to Add AI to an Existing Product Without Rewriting It
Add AI to an existing product without a rebuild. Three integration patterns, how to pick the right one, and what production-ready AI actually demands.

Dev.to · Iurii Rogulia
🔐 Cybersecurity
⚡ AI Lesson
1mo ago
BEC Invoice Fraud Detection API: Stop Redirected Payments
BEC invoice fraud costs $43B globally. Detect bank-account swaps in PDF invoices via structural forensics — no original file needed. API integration…

Dev.to · Iurii Rogulia
📣 Digital Marketing & Growth
⚡ AI Lesson
1mo ago
linkinator Tutorial: Find Broken Links in Next.js Sites
Use linkinator to catch broken links before production: local URL rewriting, --silent flag, GitHub Actions integration, and false positive patterns for…

Dev.to · Iurii Rogulia
⚡ AI Lesson
1mo ago
How to Take Over a Codebase from a Web Agency (5-Day Process)
Agency codebase handover checklist: first 48 hours, security triage, architecture mapping, and how to write a takeover assessment. Practical guide.

Dev.to · Iurii Rogulia
🧠 Large Language Models
⚡ AI Lesson
1mo ago
llms.txt for AI Discoverability: Should You Add It?
llms.txt: what it is, how AI systems actually read your site (training crawls vs. runtime vs. agents), and why adding it now costs almost nothing.
DeepCamp AI