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Latest in Languages & Runtimes
Why SVG exports look blurry: a practical PNG checklist
1+ hour, 25+ min ago (268+ words) SVG is resolution-independent, but the PNG you export from it is not. If an icon looks soft in a slide, email, or app store screenshot, the problem is often the export size rather than the SVG file. Decide where the…...
Your MQTT devices keep publishing when the WAN drops — here's the setup
4+ hour, 21+ min ago (512+ words) Devices publish MQTT to a broker in the cloud. It works, until the link to the site goes down for forty minutes. There are two standard answers, and they're both reasonable. QoS 1 with a persistent session. The client retries unacknowledged…...
Internationalization (i18n) in Next.js App Router
5+ min ago (29+ words) Adding a second language to a Next.js App Router project is straightforward once you understand the routing pattern — the tricky parts are usually …...
Partitioning in Apache Spark: How to Control Parallelism and Improve Performance
1+ hour, 8+ min ago (5+ words) “” is published by Ved Prakash....
YouTube's WebP thumbnails are half the bytes of the JPEG at 1280x720. At 480x360 they are often bigger. 1,000 videos measured.
6+ hour, 42+ min ago (631+ words) So I measured it. Short version: WebP is about half the bytes at 1280x720 and 640x480. At 480x360, the size most embeds and players actually use, WebP is the heavier file for 56% of recent uploads and 72% of videos uploaded in 2026. For each video…...
Making API Performance Tests More Realistic: From Endpoint Metrics to Role-Based Journeys
6+ hour, 57+ min ago (1596+ words) Daniel Balcarek's article API Performance Testing: How to Design Realistic Tests makes a straightforward point: load should reflect how people use the system, and the target load should come from an explicit requirement or telemetry. It made me ask a…...
Compression Is Prediction, and gzip Is What That Looks Like at One-Byte Resolution
3+ hour, 42+ min ago (32+ words) Someone built a text generator whose entire model is one line: score each candidate continuation by how small gzip …...
Why One Thread Is Enough: Building a Sequential TCP Server in Rust
8+ hour, 40+ min ago (650+ words) Look, I know "single-threaded server" sounds like you forgot to finish building it. We live in a... Tagged with programming, software, rust, backend....
🔥 30 Days of Frontend - Day 1
9+ hour, 1+ min ago (206+ words) When state changes, many developers think: That's a useful simplified model, but there's more happening in between. A better mental model is: The state update tells React that the component needs to be rendered again. React calls the component function…...
One Icon Catalog, Many Delivery Surfaces
9+ hour, 3+ min ago (434+ words) An icon system can have many versions. Your React package may be 3.4.1. Your Vue package may be 2.8.0. Your CLI may be 1.6.2. That is not a problem. The problem starts when they no longer expose the same icon catalog. Software packages…...