Page 17 - Monthly Archives: May 2025

An app that noticeably slows down after half an hour of use, or crashes on older devices, very likely has a memory leak. Unlike pure JavaScript code, where the garbage collector silently forgives many mistakes, React Native's actual memory footprint is shaped by both JavaScript-side and native references. This article covers the typical causes, unremoved event listeners, hanging timers, and problematic closures, and shows how to systematically find and fix leaks with Xcode Instruments and Android Studio Profiler.

A standalone Bash CLI tool distributed without a package manager needs its own way to stay current on users' machines. A self-update mechanism downloads new versions, verifies them, replaces the running script atomically, and rolls the change back on failure before users even notice anything went wrong.

Discord servers are fundamentally private, login bound spaces whose content stays technically unreachable for search engines, regardless of how valuable the discussions held there actually are. For companies with an active community that does not mean this knowledge has to go to waste: editorially reworked community recaps can turn the actual substance into fully indexable blog content. This article explains why Discord works technically different from more open platforms, what a workable recap workflow looks like, and why Discord should primarily be measured as a retention channel rather than an SEO channel.

A broken hreflang implementation makes Google show users the wrong language version of a page and can flag multilingual content as duplicate content. This article explains hreflang syntax, the reciprocal linking rule, the correct use of x-default, and the most common sources of error, then shows how a clean implementation looks in practice using the mironsoft.de blog itself.

React Server Components are not a new rendering model, they are a fundamental paradigm shift. Thinking in client-only components no longer works. Whoever truly understands RSC builds apps that ship less JavaScript, load faster and can encapsulate database access directly inside components.

Source maps translate minified, bundled production code back into readable original source, but production follows different rules than local development: the maps must be deployed safely so attackers cannot extract unminified business logic from them, while error tracking systems such as Sentry still need to reconstruct real stack traces from the minified code.

A migration runner ensures database schemas change traceably and in the right order across multiple environments. This article shows how to build a custom migration runner in Bash, with a tracking table, checksum verification, transactional execution, and a slim command line interface for up, down, and status.

AI assistants like Claude can generate code comments in seconds, but without a deliberate instruction the result is often just a paraphrase of the code itself. This article explains why that is a problem, how precise prompting surfaces hidden constraints and workarounds, and how a concrete before-and-after example makes the difference between worthless and valuable comments clear.

content on ::before and ::after is often used only for empty decorative elements, but it can do a lot more: attr() reads HTML attributes directly, counter() numbers lists and chapters automatically, and content: url() embeds image icons, all without extra markup. Knowing these options saves HTML elements, but requires understanding the accessibility limits of generated content precisely.

Since Git 2.34, an already existing SSH key can be used directly to sign commits, with no separate GPG installation and no dedicated key management of its own. Anyone already using SSH for push and pull gets to verified commits with considerably less overhead this way.