Hyvä Module Compatibility Checker — Manual Grep + Automated CLI
There are two honest ways to check whether a Magento extension is Hyvä-compatible — manual grep across the module source, and the hyva-themes/magento2-compatibility-checker CLI. Neither one catches everything. This post lists the exact bash one-liners I run against vendor/, walks through what the official Hyvä compat CLI flags and what it silently ignores (Magewire deps, GraphQL schema needs, form validation libs), and ends with the checklist I work through when the CLI prints "compatible" but the module still throws KO errors in the Hyvä storefront on Magento 2.4.4 — 2.4.9.