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Latest in Languages & Runtimes
Agent-Cache: Multi-Tier LLM Caching for Valkey and Redis
2+ hour, 12+ min ago (666+ words) Agent loops burn tokens and clock cycles on repeated work. The same LLM prompt fires twice, the same tool call fetches identical data, and session state gets reconstructed from scratch on every request. Agent-cache solves this with a three-tier caching…...
Explicit accessibility contracts make React components more portable
4+ hour 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
3+ hour, 34+ 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)
3+ hour, 42+ 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
4+ hour, 50+ 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
5+ hour, 47+ 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....
10 Things I Check Before Testing a Web Application
1+ hour, 53+ min ago (31+ words) My practical reconnaissance checklist for authorized security testing When I get access to a new web application for security testing, I don’t …...
How to Compress 4K NFT Artwork and Fix Web3 Crypto Landing Page Mobile Speed Drops
2+ hour, 16+ min ago (32+ words) The advanced WebAssembly asset optimization framework to clear Google LCP marks and secure absolute data privacy for …...
Project Leyden Just Killed The “Java Is Too Slow For Serverless” Argument
3+ hour, 11+ min ago (33+ words) You have sat in this meeting. Someone proposes Lambda. You say the word “Java.” The room gets quiet in that specific …...
Redis Is Not Your Database: Designing Cache Failures, Fallbacks, and Resilient Backends
8+ hour, 26+ 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…...