First, I apologize for being so ignorant - I'm completely new to this and in way over my head.
I'm on macOS, but downloaded developer tools on an older machine that has an ethernet port.
How do I actually run imagebuilder? I'm trying to eventually use "tplink-safeloader" but I have no idea how to use imagebuilder. I downloaded the generic file following the directions on openwrt.org, but don't know how to access the code. Can I use Terminal?