Page 13 - Mironsoft Blog

Using Tailwind CSS together with React is intuitive, until class composition, conditional styles and variant systems get complex. This article covers the established best practices: clsx for conditional classes, the cn helper for merge-safe composition, and cva for type-safe variant systems in React components.

Schema migration in IndexedDB differs fundamentally from server side database migrations: there is no migration tool, no SQL DDL commands and no central place to run scripts, only the onupgradeneeded event, a single version number, and the developer's responsibility to change object stores and indexes step by step, robustly and backward compatibly.

Cards are the most universal UI pattern on the web. At the same time, Tailwind projects without a card system quickly end up with dozens of different card implementations, each slightly different, none really reusable. This article shows how to build a complete card system with all the important variants using Tailwind CSS.

A performance problem that only shows up for five percent of users on specific device models never surfaces in local profiling, yet it measurably costs App Store ratings and retention. Firebase Performance Monitoring and New Relic Mobile close that gap by continuously collecting performance data from the real production fleet. This article covers which metrics both tools capture automatically, how to set up custom traces for critical user flows like checkout or login, and what sensible alerting thresholds look like for a production app.

Magento Maintenance Mode blocks real users. Teams that flip it on for every deployment are paying for uptime with unnecessary process overhead. This article shows when it's actually required, how to integrate it correctly into GitLab CI, and how a clean release structure reduces it to a bare minimum.

The warning 'overcommit_memory is set to 0, background save may fail' at Redis startup is one of the most common kernel tuning hints in Magento hosting environments. Understanding the three overcommit modes and their relationship to the OOM killer leads to the right decision, instead of blindly following a copy-paste recommendation.

A link without a preview image practically disappears in the fast-scrolling X timeline. Twitter Cards, still technically maintained through the twitter:card naming scheme, decide whether a shared link appears as a large image card or as bare text. Knowing the card types and aligning them cleanly with existing Open Graph data avoids duplicate content conflicts and delivers consistent previews across every platform.

A customer whose click on Add to Cart silently fails because of a broken Alpine expression leaves no trace whatsoever in the Magento exception log, since the error happens entirely inside the browser. This article shows how to bring JavaScript error tracking with Sentry into a Hyvä theme in a CSP-compliant way, which error sources arise specifically from failed Alpine initialization, and how this layer is cleanly separated from pure server-side logging.

Raw text data separated by commas or tabs becomes hard to read as soon as more than three columns are involved. column -t automatically aligns columns, paste merges several files line by line side by side, and together the two tools build readable reports directly in the shell, without any spreadsheet or external table tool.

Lighthouse CI measures performance in a controlled, repeatable way directly inside the pipeline, preventing slow deployments from ever going live. This article explains the difference from Real User Monitoring, walks through a complete lighthouserc configuration with budget assertions, covers historical trend tracking, and shows why testing only the homepage creates a dangerous false sense of security for Magento stores.