hexplain.hashnode.devFrom Open Source to Enterprise Only: The Infrastructure Shift No One Budgeted ForThe Quiet Moment That Changed Everything In November 2025, MinIO made a decision that would have gone largely unnoticed if not for the consequences that followed. With no announcement post, no migration guide, and no public roadmap, the company updat...Jan 23·6 min read
hexplain.hashnode.devCassandra vs ScyllaDB: Evolution of a Distributed DatabaseDistributed databases are rarely chosen lightly. When your system handles millions of events per second, every architectural decision echoes across performance, cost, and operational sanity. Apache Cassandra has long been a default choice for large-s...Jan 22·4 min read
hexplain.hashnode.devNestJS Event-Driven APIs: Architecture, Patterns, and Best PracticesMost backend systems do not fail because of incorrect business logic.They fail because too much work is executed at the wrong time. A request arrives at an API, and instead of performing only the essential work, the system immediately starts logging ...Jan 20·4 min read
hexplain.hashnode.devBash Basics: A Beginner’s Guide to the Command LineLearn some of the most useful Bash commands and the problems they help you solve Most computers today are not really powered by electricity. They appear to be powered by the constant pumping motion of a mouse.— William Shotts If you have watched movi...Jan 20·4 min read
hexplain.hashnode.devIf You Want to Succeed in Automation Testing, Start Here.I’ve noticed a consistent and worrying pattern. Most testers jump straight into Selenium tutorials or expensive bootcamps without understanding the fundamentals. They struggle, feel stuck, and often give up or remain junior for years. The issue is no...Jan 17·2 min read