The newest deploy is almost never the cause. So I gave on-call a graph.
The newest deploy is almost never the cause. So I gave on-call a graph. (On-call Brain, Graph Hacks by WeMakeDevs x FalkorDB) It's 3 am. Your phone…
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Designing a Distributed Cache Inspired by The Lord of the Rings: One Insight to Rule Them All
The Quest Begins (The "Why") Ever felt like your application is constantly begging the database for the same piece of data over and over? I remember…
APIWatch: Checking API Traffic and Subscription Controls with WSO2 API Manager
I recently worked on a project called APIWatch using Python and WSO2 API Manager. It is a small monitoring tool that reads API traffic logs and help…
Your company's knowledge doesn't go missing. It goes wrong.
How we built Strata, a company brain on FalkorDB that notices when a document has become false, for Graph Hacks. Code: https://github.com/manasdutta…
why pg‑bouncer can still choke your service under burst load
problem statement in a typical microservice, each instance opens its own pg client pool. during a traffic spike the aggregate connection count can e…
Exponential Backoff Isn't Enough: The Retry Storm Hiding in Your Recovery Path
The problem A dependency blips for 400ms — a deploy, a GC pause, a brief network partition, doesn't matter which. Every client with an in-flight req…
Building GoRoute: An Ultra-Lightweight (<15MB RAM) LLM Gateway in Go
Most developers using terminal coding agents like Claude Code , OpenCode , Codex , or Cursor end up running an LLM router in the background to handl…
I Built a Pixiv Alternative in Go (and Taught It SEO)
Pixiv is wonderful. It's also, architecturally, a black box you can't learn from. So I built my own illustration community platform — Lumiina — live…
Version the wire schema, normalize at the boundary, and keep failures visible
Problem statement When you change a function-calling or Structured Outputs schema after users have active conversations, older turns and replayed to…
Tracing Fraud Rings with a Graph: What I Learned Building with FalkorDB
Banks flag suspicious transactions all day. The hard part isn't the flag—it's seeing what's behind it. Fraud rings can hide in relationships: accoun…
5 Common JSON Mistakes That Break API Requests (With Fixes)
JSON is one of the most common formats used to exchange data between frontend applications, backend services, and APIs. It looks similar to a JavaSc…
I'm 13. I Spent 101 Days Building a Secure Social Network with Node.js
Hey dev community! 👋🏻 I'm Seif, a software engineer with 4 years of experience who absolutely hates vibe-coding and prefers designing architecture b…
Retry Storms: Hardening n8n Workflows Against Thundering Herd Failures
A 90-second upstream blip doesn't take you down. What your retries do in the ninety seconds after it ends does. We learned this the expensive way. A…
AsyncLocalStorage vs Scope.REQUEST in NestJS: Fixing a Multi-Tenant Data Leak Without Killing Performance
A while ago in a high-scale multi-tenant B2B SaaS platform, we ran a high-concurrency benchmark before launching an enterprise data portal. Everythi…
Your Dashboard Says "Live" — Prove It With Freshness Watermarks
I once shipped a monitoring page that said LIVE in confident green letters. It stayed green for eleven days while the ingest job behind it had been…
A $16,500 GCP bill nobody could explain. Logging was $3,800
The GCP account I remember most clearly had a billing problem nobody could locate Medium-sized SaaS company. Four GCP projects. Total monthly spend:…
Securing a .NET API with JWT Authentication Using Clean Architecture
When building a RESTful API, securing your endpoints is just as important as the business logic itself. While implementing JWT (JSON Web Tokens) in…
Testing Idempotency, Webhooks, and Race Conditions in Payment APIs
Payment bugs do not always originate from a missing patch or weak password. Some appear when two requests arrive almost simultaneously, a callback i…
AI Can Build Your React UI in Seconds. What About the Backend?
A few weeks ago, I opened Cursor and gave Claude a single prompt: "Generate a modern task management dashboard with filtering, search, pagination, a…
Travel Planner Retrieval Design with Bounded Access Rules and Source Citations
Short answer: a travel itinerary planner needs a staged retrieval architecture with bounded access rules and source context attached to every answer…
SMS Alert API Alternatives Explained (Europe GDPR and US Startup Support)
Choose an SMS alert API by the evidence it lets your system retain, not by the apparent simplicity of its send call. For US and EU loan-application…
Rate Limiting Like Gandalf: Building a Distributed Cache with Redis
The Quest Begins (The "Why") Ever had your API melt down because a sudden traffic spike hammered every endpoint at once? I remember a late‑night dep…
Building Inventory Applications That Don’t Lose Track Of Their Inventory
Let’s imagine we have an inventory system. Two of its customers decide to order the last remaining unit of a given product at roughly the same time.…
Ledger errors should name the invariant they protect
A payout worker catches an exception from the ledger and has to decide, with no human in the loop, whether to retry the request, park it, or escalat…
Payment Integration Mistakes and How to Fix Them
I've integrated four payment processors in production: eSewa, IMEPay, Dodo Payments and Paddle. eSewa and IMEPay are redirect-based local gateways.…
Why Your Connection Pool is Lying to You
We hit a wall last month. Traffic was stable, CPU was idle, but p99 latency spiked to 2s. The PostgreSQL server looked healthy. The culprit wasn't t…
Reengineering Family Finance: Building Financial Integrity Into Kith
Families manage money and responsibilities in ways that often resemble small organizations. They coordinate recurring contributions, fund shared pro…
GitHub push protection for Anthropic keys: check repo coverage
When an AI coding agent commits a generated configuration file, an API key can end up in Git before anyone notices. GitHub’s new Anthropic detectors…
Supabase pg-delta migration guide: adopt declarative schemas safely
A schema diff can be technically valid and still remove data you meant to keep. That is why switching an existing Supabase project to Declarative Sc…
How to add Cloudflare browser rendering to a SaaS without running a browser fleet
A screenshot or PDF endpoint looks small in a product spec: accept a report, render it, return a file. The hidden work is the browser fleet behind t…