I'm not a Go expert so hard to judge, but: github.com/rclone/rclone - Somewhat complex with abstractions, plugins, filesystems, networking, multi-platform supp

I'm not a Go expert so hard to judge, but: github.com/rclone/rclone - Somewhat complex with abstractions, plugins, filesystems, networking, multi-platform support etc https://github.com/hashicorp/ https://github.com/hashicorp/ has a lot of Go