SShota Yamazaki20h ago · 17 min readSent, Accepted, Reached: Automating a Home Theater That Is Also My OfficeOne day I asked Alexa to shut down the theater. Alexa answered, "Shutting down the theater," and the routine ran all the way to the end. The projector stayed on. The room is my home theater with 7.1.42Mblog.simukappu.com
VVrushika D40m ago · 11 min readBuilding a Scalable QR Code Generation System: Technical Challenges and SolutionsQR codes have become an important part of modern digital interactions. From online payments and product information to event registrations and business networking, they provide a simple way to connectdigitalqr.hashnode.dev
DDevang Pandya16h ago · 8 min readSticky Sessions Explained: The Story of Two Waiters (Load Balancer Session Affinity)By Devang Pandya · Cloud Tech by Devang · Cloud • DevOps • AI — Made Simple This post is the full breakdown for the Two Waiters Reel. If you came here after commenting STICKY, welcome! The story in cloudtechbydevang.hashnode.dev
LLinkjob AI13h ago · 3 min readA Practical System Design Interview Checklist for Junior EngineersSystem design rounds used to be reserved for senior candidates. In 2026, plenty of companies add a light version for new grads and juniors too. The bar is different: nobody expects you to have run a glinkjob-ai.hashnode.dev
NNeeraj Sharma13h ago · 3 min readAfter the $60B Cursor Deal: A System Design for AI Products That Survive Paying UsersThe companies that build AI coding tools have had an extraordinary year. SpaceX closed its purchase of Cursor's parent Anysphere in August 2026 at an implied $60 billion (Wikipedia). Lovable raised $4axionry.hashnode.dev
QQrrier13h ago · 8 min readDesigning an escrow state machine for peer-to-peer deliveries with USDC on BaseA peer-to-peer delivery looks simple from the outside: someone abroad wants a thing, someone with a plane ticket brings it, money changes hands. Once you try to model it, it becomes a small distributeqrrier.hashnode.dev
JJamie Lee1d ago · 6 min readOne live overlay for coding + system design + behavioral—buyer checklistOn interview day, stitching ChatGPT in a browser, a coding-only helper, and a separate STAR note doc usually breaks under the clock. Not because any one piece is useless—the workflow fragments. A cleajamieleegrowth.hashnode.dev
RRONI DAS23h ago · 10 min readFollow One OAuth Token From Birth to Expiry, and Most Interview Questions Answer ThemselvesWhy does the authorization server hand your app a code, and not the token it actually wants? If you can answer that in two sentences, you can answer about half of the OAuth questions an interviewer wisystemdesignacademy.hashnode.dev
AAnish Ansari1d ago · 7 min readSystem Design Drill Day 11: The Transactional Outbox PatternAlmost every Laravel checkout controller has the same two lines: save the order, then dispatch a job. It works nearly every time. If Redis hiccups between those two lines, the order is paid and the emblog.anishansari.com.np
YYash Dhawane1d ago · 6 min readScalability: Why Adding More Servers Isn't Always the AnswerI'm learning High-Level Design (HLD), and one of my first lessons was about scalability. Before this, when I thought about a system struggling with increasing traffic, my instinct was simple: add moreyashdhawane.hashnode.dev
