HLD: Twitter / X
Design a social media platform where users post tweets, follow each other, and see a timeline of tweets from accounts they follow. 1️⃣ Clarify Requi…
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My coding agents keep a record of what they decided and why, not just what they built
A session with a coding agent ends and whatever it figured out along the way goes with it. The code survives, since it's on disk. The reasoning behi…
Scheduling every job on a GPU that can only hold one model
A Raspberry Pi 5 runs DNS for the network, plus dozens of other small services that don't need much CPU or memory but can't go down. A Jetson Orin N…
hearth is what I built to schedule every job on my homelab's GPU
Every scheduled job in my homelab runs through a platform I built called hearth, and one piece of it is a gateway that admits one job at a time to w…
Seven Ideas That Keep Distributed Systems From Falling Over
Hello, I'm Maneshwar, and I'm building LiveReview — a blast-radius aware AI code review built for your business-critical systems. Star us to help de…
System Design: PDF Processing Pipeline
System Design: PDF Processing Pipeline A capstone system design walkthrough — designing a system that ingests, parses, transforms, and extracts stru…
Building a Data Pipeline for Real Estate Feasibility Analysis
Real estate feasibility analysis is often treated as a financial modeling problem, but the financial model is only as reliable as the data behind it…
Client API Key — Design (Lite) ออกแบบ API key service to service ให้เบาและยังถูกต้อง
ออกแบบ API key สำหรับการเรียกกัน service to service ให้เบาและยังถูกต้อง วันหนึ่งจะมีอีกทีมมาขอเรียก service ของคุณ และคุณต้องรู้ให้ได้ว่าใครเป็นคนยิ…
HLD: Instagram Feed
Design a photo-sharing platform where users post photos and see a feed of photos from people they follow. 1️⃣ Clarify Requirements Functional Requir…
Stop Choosing Between BM25 and Vector Search: Implement Hybrid Search with RRF
Combine dense embeddings and sparse keyword search using Reciprocal Rank Fusion to eliminate retrieval failure modes in production RAG systems. The…
How Does One Server Find Another Server? DNS, Private DNS, and Service Discovery Explained
Hey developers! 👋 Welcome back to our networking and infrastructure deep-dive series. In the previous article we learned something surprising: Two s…
I replaced a five day spreadsheet with a cron job, then spent two weeks fixing what I got wrong
Every twenty or twenty five days someone at the company would sit down and build a rate card. A rate card is a spreadsheet. Countries down one side,…
Enterprise Architecture 4.0
The Key to Digital Transformation In today’s world, where digitalization and technological innovations set the pace, Enterprise Architecture (EA) pl…
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026 In modern software, knowing that something happened is often just as important as kno…
Retries Are Not a Recovery Strategy
A retry answers a narrow question: might the same operation succeed if I attempt it again? Recovery has a harder job. It must bring the original bus…
Stop Using Regex: Building Zero-Crash LLM JSON Pipelines in Production
Replace brittle string parsing with schema-enforced validation and self-healing repair layers. The Bottleneck in Production Most LLM pipelines don't…
Stop Designing Agentic AI Systems Backwards: Start With Constraints, Then Choose the Architecture
There is a pattern I keep seeing when designing Agentic AI systems. We start by asking: Which LLM should we use? Should we use LangGraph? Where can…
System Design: Payment Processing System
System Design: Payment Processing System A capstone system design walkthrough — designing a payment processing system end to end — covering the core…
Understanding RCDA: A Strategic Approach to Managing Risk and Cost in Architecture
In today’s fast-paced digital world, organizations face a growing number of challenges in managing their enterprise architectures. Complex systems,…
Designing a Zero-Trust Authorization Layer for Collection Actions
Most recovery technology is built for execution throughput: dialing numbers, streaming SMS, rendering demand letters, syndicating portfolios, report…
What Actually Makes a Software Engineer Great (It's Not the Framework You Know)
Most advice for developers who want to level up sounds the same: learn React, learn a backend language, build projects, apply to jobs. That advice i…
That Time Client Retries Turned a Recovery Into a 7-Hour Outage
GitHub had an interesting incident last August. A component in Central US failed under load, and when it started recovering, the recovery took much…
Architecting for Reliability: The Role of Message Brokers in Multi-Agent AI
When building Agent-to-Agent (A2A) systems, the biggest trap is treating AI agents like standard REST APIs. If your Orchestrator Agent synchronously…
Reusing A Prompt System Across Clients Without Turning It Into A One Size Fits All Failure
Building a custom GPT for one ministry client teaches you something specific about that ministry. Building the third or fourth one for a different g…
What Makes a Good Design System in Frontend Engineering
A good design system is a product that has a roadmap, ownership, documentation, versioning, and feedback loops. What is a design system? A desi…
How AI Automates Fast Decisions in Software Engineering
AI is shifting the software engineering landscape by taking over "fast decisions"—the automatic, high-context but low-complexity tasks like running…
How Kafka Saved a Failing System -The Story of Arjun & Meera
Modern systems run on data in the form of fast, real-time, continuous streams. But what happens when your system grows faster than your architecture…
How to Quickly Understand and Improve AI Agent Design
Coding with agents really has surfaced a bunch of problems and challenges we never ran into when writing code by hand. Agents work even faster than…
Building a Streaming Pipeline: From a System Design Perspective
Say you're on vacation and you've just recorded a fairly large video of yourself skydiving for the first time, naturally, you'd want to send it to a…
ByteByteGo in 2026: Is It Still Worth It for System Design Interview Prep?
Disclosure: This post includes affiliate links; I may receive compensation if you purchase products or services from the different links provided in…