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I built an RPG that teaches Claude Code by making you actually use it

Susheem Koul5d ago • 3 min read

I built an RPG that teaches Claude Code by making you actually use it

claude-quest is an in-terminal RPG for learning the Claude Code CLI. missions live in real sandbox d...

#ai#claude#opensource#node

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NestJS Request Lifecycle Explained (with Cheat Sheet)

Parsa Jiravand3d ago • 11 min read

NestJS Request Lifecycle Explained (with Cheat Sheet)

A complete guide to the NestJS request lifecycle: the exact order middleware, guards, interceptors, ...

#nestjs#node#typescript#tutorial

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RFLCT: Bringing Runtime Type Metadata to TypeScript 7

Remo H. Jansen5d ago • 4 min read

RFLCT: Bringing Runtime Type Metadata to TypeScript 7

If you've built large-scale applications in TypeScript, chances are you've used a Dependency...

#typescript#webdev#node#tooling

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JWT Authentication in Node.js: A Practical Guide (with Express)

Akash GuptaAug 24, 2026 • 3 min read

JWT Authentication in Node.js: A Practical Guide (with Express)

Ever logged into an app, closed the tab, come back, and you're still logged in — no password needed?...

#javascript#webdev#node#security

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Mohamed Aboelmagd6d ago • 8 min read

40001 is not a query error

The PostgreSQL manual is unusually direct about this: When an application receives this error...

#postgres#node#typescript#database

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Checking 800M Leaked Passwords in 2MB of RAM with Bloom Filters

Doaa H Alshawwa6d ago • 4 min read

Checking 800M Leaked Passwords in 2MB of RAM with Bloom Filters

When users register or change their passwords, security guidelines (like NIST SP 800-63B) recommend....

#javascript#node#security#algorithms

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Streaming Master Uploads to Disk: Preventing Memory Exhaustion in Video Pipelines

Humza Tareen6d ago • 5 min read

Streaming Master Uploads to Disk: Preventing Memory Exhaustion in Video Pipelines

How streaming video uploads directly to disk instead of buffering in memory eliminated payload size ...

#node#nextjs#streaming#videopipelines

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A Debouncer That Doesn't Scale Past One Worker (On Purpose, For Now)

Parvej Shah5d ago • 3 min read

A Debouncer That Doesn't Scale Past One Worker (On Purpose, For Now)

SellerVai merges rapid-fire customer messages into one reply using an in-memory buffer that explicit...

#javascript#backend#webdev#node

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Durable Objects without Cloudflare, on the database you already run

Lucas Carlson4d ago • 9 min read

Durable Objects without Cloudflare, on the database you already run

The Durable Objects programming model as a plain library on the SQL database you already run, now wi...

#javascript#database#opensource#node

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Frame-accurate FFmpeg trimming without re-encoding the whole file

Mason K4d ago • 7 min read

Frame-accurate FFmpeg trimming without re-encoding the whole file

TL;DR -c copy can only cut on keyframes, so your 12.4s trim starts wherever the last...

#ffmpeg#video#tutorial#node

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You Can Retry a Write. You Cannot Retry an Email.

Nabeel Hassan4d ago • 6 min read

You Can Retry a Write. You Cannot Retry an Email.

I run Upwork Scout, a small SaaS that watches Upwork and emails you only the jobs that fit you. The....

#architecture#typescript#node#devjournal

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Node.js Cron Trigger Queue Worker: Scheduled Enqueue for Long-Running Background Jobs

UrbanDonovan15762d ago • 5 min read

Node.js Cron Trigger Queue Worker: Scheduled Enqueue for Long-Running Background Jobs

A cron trigger should enqueue small, repeatable work, while queue workers own the long-running...

#node#queues#cron#healthtech

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RBAC in React and Node: enforce the same policy on both sides

kensaadi1d ago • 4 min read

RBAC in React and Node: enforce the same policy on both sides

The advice is everywhere: the frontend is UX, authorization belongs on the backend. It is true, and....

#react#node#typescript#security

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GEX.live6d ago • 5 min read

A paywall where the trim is the product

I sell one thing: a live data stream. Everything that has already finished is free, forever, and tha...

#node#webdev#architecture#api

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How Many Builds Can Run at Once on One VPS

Görkem Yıldırım5d ago • 7 min read

How Many Builds Can Run at Once on One VPS

The number is not a property of your deployment tool. It is your server's available memory divided b...

#devops#node#vps#webdev

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Database Connections in Serverless: Field Notes on Pool Math, PgBouncer Transaction Mode, and the Singleton HMR Kept Recreating

Ahmed Mahmoud3d ago • 5 min read

Database Connections in Serverless: Field Notes on Pool Math, PgBouncer Transaction Mode, and the Singleton HMR Kept Recreating

Headline: A database connection pool in a serverless deployment is per-instance, not...

#postgres#serverless#node#webdev

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28 Hours of Green Logs, Zero Replies: How a Single `echo` Line Swallowed Every Exit Code

Lily20h ago • 23 min read

28 Hours of Green Logs, Zero Replies: How a Single `echo` Line Swallowed Every Exit Code

For 24 hours, every dashboard was green. Every launchd job reported exit 0, and the logs lined up...

#automation#bash#node#debugging

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How I Migrated 40 REST Endpoints to GraphQL With Claude Code in 12 Days

yureki_lab2d ago • 8 min read

How I Migrated 40 REST Endpoints to GraphQL With Claude Code in 12 Days

TL;DR I moved 40 REST endpoints to GraphQL in 12 days using Claude Code as the grunt-work...

#ai#claudecode#graphql#node

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52 Days, 2,340 Rows, Every Cost Logged as Zero: The Stop Hook Trap

LilyAug 25, 2026 • 23 min read

52 Days, 2,340 Rows, Every Cost Logged as Zero: The Stop Hook Trap

Going from a $700/month student side hustle to a real business in six months came down to one thing:...

#automation#claudecode#debugging#node

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Why your transactional email needs a queue, not a try/catch

Greg Pabijan-Morawski19h ago • 12 min read

Why your transactional email needs a queue, not a try/catch

Almost every codebase I've inherited sends email the same way: somewhere inside a POST handler,...

#node#architecture#webdev#backend

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Why Your Stripe Webhooks Vanish After the 3-Day Retry Window (And How to Fix It)

Sy Babayev3d ago • 4 min read

Why Your Stripe Webhooks Vanish After the 3-Day Retry Window (And How to Fix It)

Stripe retries a failed webhook for up to three days, then disables your endpoint. Why your events v...

#webhooks#stripe#node#saas

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Prompt Caching at the Edge: Using CloudFront Functions and Lambda to Speed Up Claude Calls

Dinesh_gowtham4d ago • 10 min read

Prompt Caching at the Edge: Using CloudFront Functions and Lambda to Speed Up Claude Calls

LLM APIs like Claude feel snappy—until latency spikes hit your users. By caching prompt‑response...

#cloudfront#lambda#node#promptcaching

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pdf-lib throws on Ł. The obvious fix silently deletes your users' data

Peter Hallander1d ago • 5 min read

pdf-lib throws on Ł. The obvious fix silently deletes your users' data

The standard 14 PDF fonts are WinAnsi only, so pdf-lib throws on Łódź Sp. z o.o. Strip the character...

#node#javascript#pdf#webdev

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Announcing the MailKite Server developer API: use the client against your own server

Bucabay4d ago • 6 min read

Announcing the MailKite Server developer API: use the client against your own server

MailKite Server now exposes a Cloud-compatible send and receive API. Point the MailKite client at yo...

#opensource#selfhosting#api#node

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