The FCC has announced that rule changes detailed in a lengthy 2019 Report and Order governing RF exposure standards go into effect on May 3, 2021. We are all required to make sure our station complies with these rules. See this blog for an example.

Amateur Radio helps get messages out of an area stricken by disaster when infrastructure fails. There are a few simple things you can do now to prepare to take advantage of the Amateur Radio Service.

This is a simple procedure for cloning an SD card using the CLI on Mac OS X.
Use with caution and make sure you know which device is your SD card because you would overwrite your other drive devices on accident. I'm mostly putting this here for my own reference.

I copied and pasted these excerpts from the NTS MPG so I have them available for quick reference. I've added bold for emphasis and reformatted a little to make it easier to read and understand this advice.

These are some notes and references I collected from various sources about the frequencies that are commonly used in different parts of the world and for various use cases.

Why qruqsp?
Why are we building this?
What are the goals?
What's the plan?

I captured notes about my experience trying to create an SD card NOOBs image for Raspberry Pi on my MacBook. I prefer using the CLI as much as possible in Mac OS and Linux / UNIX.
Use with caution and make sure you know which device is your SD card because you would overwrite your other drive devices on accident.