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Explicit accessibility contracts make React components more portable
47+ min ago (1010+ words) A component that works in a React app doesn't automatically work when you reuse it elsewhere in the React ecosystem. I moved a design-system layout component from a React app into a Next project and it broke. The problem wasn't…...
Database Indexing Mistakes That Are Quietly Killing Your App's Performance
21+ min ago (459+ words) Indexing is one of those topics every developer has heard of, most have used, and surprisingly few have actually reasoned through carefully. It's easy to add an index and move on — it's much harder to know whether that index is…...
At the edge, the number that matters is memory - not throughput (specially in Ramageddon)
29+ min ago (720+ words) We rebuilt LF Edge eKuiper in Rust and ran it against eKuiper, Telegraf and Redpanda Connect... Tagged with rust, iot, performance, opensource....
A 100 PageSpeed score does not contain INP, and that is the most expensive thing about it
1+ hour, 37+ min ago (1070+ words) A 100 in PageSpeed Insights is one of the very few numbers in this job you can chase to a literal maximum, which is exactly why people chase it. It is a score, not a feeling, and getting it forces real…...
My FDCServers VPS Was Online. Disk Reads Were Taking 18.7 Seconds
2+ hour, 34+ min ago (1599+ words) I actually liked FDCServers. That is probably the strangest way to start an article about a VPS that eventually became unusable enough for me to cancel it. For quite a while, the server worked normally. It handled real production traffic....
Redis Is Not Your Database: Designing Cache Failures, Fallbacks, and Resilient Backends
5+ hour, 13+ min ago (724+ words) Redis can make a backend dramatically faster. It can also make a backend dramatically more fragile if the architecture treats the cache as a dependency that must always be available. The distinction is simple: A database stores authoritative data. A…...
I Thought Redis Would Save My API. Just 500 Requests Proved Me Wrong.
5+ hour, 44+ min ago (243+ words) As our series continues, Deep-Dive Backend Systems Roadmap. I created the simplest weather API... Tagged with webdev, distributedsystems, redis, programming....
Laravel Horizon Queue Balancing: Idle Workers vs. Starved Queues
6+ hour, 17+ min ago (800+ words) Every Horizon supervisor makes you choose. Turn balancing on and you pay for a floor of idle workers. Turn it off and a busy queue starves the queues listed after it. The more queues you run, the more each option…...
A Boundary-First Benchmark for Low-Latency Crypto Trading Systems | HackerNoon
7+ hour, 52+ min ago (922+ words) Search "low-latency crypto trading framework," and you will find a lot of microsecond claims. Almost none of them tell you where the stopwatch started and where it stopped. That omission is the whole game. "Sub-100µs" can mean the time from…...
ESLint took 4.4s to lint Vue's core. oxlint took 0.24s. Then I turned on the type-aware rules.
7+ hour, 38+ min ago (515+ words) ESLint took 4.4 seconds to lint 445 TypeScript files. oxlint took 0.24. Turn on the type-aware rules that most projects actually want and ESLint climbs to 12 seconds, while oxlint, doing the type-aware pass too, finishes in under one. I went in expecting to…...
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