📰 Dev.to · Dinesh_gowtham

TypeScript 5.5 Explained Simply: Mastering Inferred Type Predicates

Understanding Vector Databases: A Beginner's Guide to Embeddings and Similarity Search

We Replaced 70% of Our Lambda Functions with LLMIntegration — and Saved $6,000 on AWS Bills

We Deleted 300 Lines of Code After Discovering Node.js 22's Hidden Perf Feature

Step Functions Broke Our Lambda Cold Starts — But Fixed Our EventBridge Delays

IAM Access Analyzer Lied to Us: The $1,000/Month Overprovisioning Mistake

Kinesis Data Firehose Is Not a Silver Bullet: How Undocumented Partition Key Limits Broke Our Real-Time Analytics Pipeline

ElastiCache Is Not a Silver Bullet: How We Fixed Node.js 22 Performance Issues with Undici and AsyncLocalStorage

TypeScript satisfies + AWS SDK v3: The Pattern That Changed How I Write Commands

CloudFront Cache Invalidation Costs Are Eating Into Our AWS Budget — Here's the Fix We Wish We Knew

We Replaced Jest With node:test in 12 Services — Here's What Broke and What Didn't

We Replaced Redis with ElastiCache and Got 3x Better Performance for 20% of the Cost

The Confused Deputy Problem in AWS: Why Your Cross-Account Lambda Might Be Exploitable

We Spent 3 Months Mastering CDK TypeScript Generics — Here's the One Thing That Broke

Why IAM Roles for AWS Lambda Are Overkill: A Simpler Alternative Using IAM Policies

typescript 55 satisfies changed our aws sdk v3commands

cdktypescriptmigrationsilos

We Replaced Jest with Node's Built-in Test Runner in 12 Services — The 3 Lines of Code That Made It Possible

Athena Queries Broke the Bank: How We Saved $1200 by Fixing 3 Simple Mistakes

The Dirty Truth About npm Package Versions: How We Broke Our Lambda Deployment

Kinesis Data Firehose Is Burning Our Budget: One Setting Changed Everything

S3 Express One Zone Broke Our Code: The Hidden API Differences

Lambda Cold Starts Are Not Solved — They Moved to INIT Phase

BunOnLambda Broke Our NodeJsApis But Saved Us 40% On Lambda Costs