maybe someone can help me with installing on macos
running go 1.16.4
go install tailscale.com/cmd/tailscale@main: tailscale.com@v1.1.1-0.20210526001443-60e920bf1816
The go.mod file for the module providing named packages contains one or
more replace directives. It must not contain directives that would cause
it to be interpreted differently than if it were the main module.