#go #config #config_loader #configuration #configuration_file #configuration_management #etcd_client #go #golang #golang_package #s3_bucket #toml #viper #yaml

koanf is a lightweight Go library to load config from files (JSON, YAML, TOML), env vars, flags, S3, Vault and more, merging them easily with dot-path keys like "app.server.port". Install core with `go get github.com/knadh/koanf/v2`, add providers/parsers as needed. It's a cleaner Viper alternative with fewer dependencies and better extensibility. This saves you time by simplifying config in apps, letting you override values flexibly without bloat or forced orders.

https://github.com/knadh/koanf