If you've never heard of Onion Omega2, then here's the TL;DR: they're a tiny light-weight computer with lots of onboard features.
Getting started guide https://wiki.onion.io/get-started
Note you might be up for an extra $14-28 for a dock: While you could build your own, it would be best to get a dock if you don't have one already. Once you have one dock, you can use that to flash / maintain your Omega's. https://core-electronics.com.au/search/?q=onion+dock
Bear in mind that the $3 shipping method can be a bit slow and has no tracking (4+ days). Faster options available, starting at $6.95 with full tracking etc.
The slightly longer version: The Omega2 IoT computer is one of Onion’s Linux-based WiFi development boards designed to enable makers of all skill levels to build connected hardware applications. Plug in your Omega, and it will boot the operating system right away, allowing you to develop in your favorite programming language, create web applications and interface with a variety of hardware with minimal time and effort spent getting started.
More details on the product page https://core-electronics.com.au/onion-omega2-iot-computer-41…
"Plug in your Omega"
Do you want to at least tell people what else they need to get to get started? I mean but this on its own and you have a pretty looking microchip. Maybe even put together a starter's kit?
"The Onion Omega boards we carry are separated into three different categories: Mainboard, Dock and Expansion Board. This board falls into the Mainboard category, which means it is highly encouraged that you pick up a Dock since the Onion Omega utilizes a 2mm header instead of a standard 0.1"."
I'm still not sure what I need to buy or what it's going to cost so I don't know if this is a bargain. How does it compare to a Pi?