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News
We Cut Lambda Cold Starts 56% — Three Wrong Turns Before the Real SnapStart Fix
2+ hour, 47+ min ago (277+ words) We measured every layer before touching anything (full numbers in docs/redesign/clo114-dashboard-speed-analysis.md). Four dashboard API calls, already firing in parallel — parallelizing them further was a non-issue, wall-clock already tracked the slowest call. Server compute, warm, was fine: ~200–380ms. SnapStart's own…...
Building GDPR‑ and EU AI Act‑Compliant Auditable State for Serverless AI Career Agents on AWS
8+ hour, 22+ min ago (269+ words) Meta: Design auditable, GDPR‑ and EU AI Act‑compliant state for serverless AI career agents on AWS with Lambda, DynamoDB, S3 Object Lock, and CloudTrail. The overlap is clear: both regimes demand immutable, queryable, and protected logs that capture personal data…...
Building a server monitoring SaaS on Cloudflare Workers — architecture, decisions, mistakes
15+ hour, 4+ min ago (1033+ words) Pulse is a server monitoring SaaS I built as a solo founder for Latin American small businesses. It runs entirely on Cloudflare Workers + Turso (libsql) + R2, with a Go agent that installs on Linux, macOS, Windows, or Docker via a single…...
The Cron Job That Quietly Became a Distributed System
21+ hour, 34+ min ago (18+ words) Cron jobs quietly become distributed systems when multiple instances, overlapping runs, retries, missed schedules, idempotency, and recovery matter....
AWS Lambda Tutorial: 12 Steps to Serverless in 2026
1+ day, 9+ hour ago (1481+ words) This is a hands-on build, not a conceptual overview. You’ll create an AWS account (or use an existing one), install the tools, write real handler code in Python, deploy it, break it on purpose to learn how errors surface, and…...
How to Turn Latitude and Longitude into an Address with JavaScript
1+ day, 13+ hour ago (392+ words) Sometimes you have GPS coordinates like: But coordinates alone are not very useful to most users. They usually want to know something much simpler: What place is this? The process of converting latitude and longitude into a human-readable address is…...
Building a Serverless Netflix Data Analytics Platform with AWS Glue, Athena and QuickSight.
2+ day, 8+ hour ago (372+ words) Quick Data & Cloud Engineering project Hey Guys, Today we'll be building a serverless data... Tagged with aws, cloud, analytics, devops....
"DeprecationWarning: datetime.datetime.utcnow() is deprecated" — fixing the Python 3.12 warning in AWS Lambda
2+ day, 9+ hour ago (307+ words) The moment you bump a Lambda function to the python3.12 runtime, CloudWatch Logs often starts showing warnings like this — once per cold start, or during your test suite against a Python 3.12 environment: It doesn't crash your function. But it adds noise…...
Elasticsearch Is Dead in 2026. Instacart Just Proved It
2+ day, 23+ hour ago (30+ words) Instacart ripped Elasticsearch out of its search stack and replaced it with plain PostgreSQL. That alone is a notable engineering decision …...
How to Set Up Cloudflare R2: 12 Steps, 70 Min [2026]
3+ day, 7+ hour ago (986+ words) R2 setup does not require much beyond a Cloudflare account, but a few tools make the tutorial go faster if you install them ahead of time. Because R2 implements the S3 API, the standard AWS CLI works against it once you point it…...