CCosmosincosmoscribe.hashnode.dev·Aug 10 · 9 min readDon't make these mistakes; otherwise, your cookies might break in productionLook, if you've deployed something that was working perfectly on localhost and suddenly auth stops working in production, you're not alone. This is one of those bugs that doesn't throw a clear error. 00
CCosmosincosmoscribe.hashnode.dev·Jun 12 · 13 min readAuthentication Demystified: Every Login Method, Actually ExplainedBefore we get overwhelmed by the jargon, let's talk about the actual problem we are solving. At some point, every app needs to answer one question: is this person actually who they say they are? That 00
CCosmosincosmoscribe.hashnode.dev·May 31 · 10 min readHow WhatsApp Works Without Internet: Offline Messaging and Sync ExplainedBefore we get overwhelmed by phrases like "eventual consistency" and "offline-first architecture," let's just talk about something you've probably done a hundred times. You're on a train through a tun00
CCosmosincosmoscribe.hashnode.dev·May 31 · 12 min readHow Instagram Stores Your Reels, Photos, and Drafts Without Losing a FrameOk, before we go into the depths of these concepts, I want to tell you that we will take it easy. I don't want you to get overwhelmed by terms like pre-signed URLs, object storage, chunked upload pipe00
CCosmosincosmoscribe.hashnode.dev·May 23 · 16 min readReact Navigation vs Expo Router: Which One Should You Actually Use?Ok, before we go into the depths of these concepts, I want to tell you that we will take it easy. I don't want you to get overwhelmed by the two names sitting in the title. By the end of this, you wil00
