New: this article has been updated to support Ubuntu 21.04 Hirsute Hippo!
No LAN cable is required. Use any power outlet within the radius of your WiFi router! The 5GHz ac standard for Raspberry Pi 4 also covered.
I suppose that you have a wireless router and know how to configure it. Besides, you will need some storage medium for Raspberry Pi.
If you are looking for an elegant solution, I suggest investing in a capacious microSD card. A…