Day 21/90: Practice — file-based todo app with JSON - Go Backend Engineering
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Day 21/90: Practice — file-based todo app with JSON 90 Day Go Challenge: Zero to Production Today I focused on using practice — file-based todo app with json to separate responsibilities cleanly enough that the system can keep changing. The strongest checkpoints were keep package boundaries, workflow ownership, and cross-component contracts explicit, separate domain workflow from transport and persistence so the system can evolve safely, and design the recovery and maintenance path a