Shell completion, structured output, config file conventions, cross-platform distribution with GoReleaser and cargo-dist, progress bars and logging — everything you need to write CLI tools people actually enjoy using.
Cobra
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Writing CLI Tools with Great UX: The Complete Guide -
Writing a CLI Tool in Go: From Zero to Distributable Binary A complete walkthrough of building a production-quality CLI tool in Go using Cobra and Viper — covering commands, flags, config files, environment variables, graceful shutdown, testing, cross-compilation, and distributing binaries with GoReleaser.