Optimization

By subsetting a variable font with pyftsubset to include only the Unicode ranges and OpenType features your site actually needs, and serving it as a WOFF2 file with the CSS unicode-range descriptor, you can reduce web font payload by 70-85%. A typical setup drops a 300 KB variable font to under 40 KB while keeping full weight and italic axis support for every glyph you actually use. This post walks through the entire process from font selection to CI integration.

You can find and fix Python memory leaks with three tools that pair well: memray for flame graphs, tracemalloc for line-level tracking, and objgraph for object reference maps. Start with memray to spot the hungry functions. Drop into tracemalloc to find the exact lines. End with objgraph to see why objects won’t get collected. Pair this with generators, __slots__, memory-mapped files, and chunked reads to cut peak memory by 50-80% in data-heavy apps.

Service workers give you a programmable network proxy right inside the browser. They sit between your page and the server, intercept every fetch request, and let you decide whether to serve a response from cache or from the network. For static sites - where every page is a pre-built file and every asset has a predictable URL - this is a natural fit. A well-configured service worker makes your static site load in single-digit milliseconds on repeat visits, work fully offline, and pass every Lighthouse PWA audit. The entire implementation fits in a single JavaScript file under 100 lines.

If you’ve been following the mechanical keyboard scene over the past couple of years, you’ve probably noticed Hall Effect keyboards moving from niche curiosity to genuine mainstream contender. The technology that was once confined to expensive custom builds and obscure group buys is now showing up in mid-range boards from Keychron, Razer, and SteelSeries. And at the top of the pile, two keyboards have emerged as the flagships of the Hall Effect world: the Wooting 80HE and the Geon Raw HE .

Alacritty and Kitty are both fast in 2026, so speed no longer decides it. The real split is how they draw text. Kitty renders emoji and glyphs that Alacritty mangles. Each project also has a very different lead developer. This guide tests both on real Linux work.

GPU-Accelerated Terminals in 2026

Linux terminals got fast. Almost every good one feels quick now. So “fast versus slow” is the wrong question. In 2026 you choose by features and feel, not raw speed.

Laptop overheating on Linux is rarely one bug. It’s a stack problem. Firmware, kernel power policy, the CPU governor, discrete GPU power, and plain dust in the heatsink all interact. The good news: Linux shows you every layer. Work through it in order and you can cut sustained temps by 8 to 20 C, quiet the fans, and stretch battery life without slowing the laptop down.

This guide reads as a full workflow, not a random list of tweaks. You’ll start with prereqs and a baseline, score how bad the issue is, then fix in order: software first, firmware and kernel next, hardware last.