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Active Storage works well out of the box and quietly fails at scale. Here is how to configure it correctly for production, avoid the common traps, and extend it where the defaults fall short.
Read moreThe decisions you make in the first hour of a Rails project determine how painful the next two years will be. Here is the setup I reach for before touching application logic.
Read moreMulti-model forms, complex validation logic, and params that don't map cleanly to database columns are where Rails' built-in form handling breaks down. Form objects fix all three without pulling in a framework.
Read moreStruct and Data solve the same problem — lightweight named containers — but their different defaults around mutability and equality make them suited to different jobs. Here is where each one earns its place.
Read moreJVM garbage collection is not magic — it follows predictable patterns that determine latency, throughput, and memory footprint. Understanding the model lets you tune effectively instead of guessing at flags.
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