go install github.com/koyeb/koyeb-cli/cmd/koyeb failed on macOS with cannot find package github.com/hashicorp/hcl/hcl/printer, a dependency-resolution error from the viper configuration library rather than anything wrong with the local Go setup. A Koyeb maintainer confirmed the supported install paths and updated the readme: install the CLI through Homebrew or download the pre-compiled binaries from the GitHub releases page. The reporter confirmed the pre-compiled binary installed cleanly and listed services and apps correctly. If you still need to build from source, make sure GOROOT and GOPATH are set in your shell environment first.