If you prefer to install the usual way via apt, use the following guide from the github page: APT Install Etcher.
Primarily Etcher is used for flashing or writing the Linux OS. How to Install and Use the Etcher Tool on Ubuntu is explained in this article. Go to Etcher download page and download the. Click on the Flash button to start creating a bootable USB pin drive of Deepin Linux. We strongly recommend you use a premium SD card from a reputable manufacturer such as Sandisk, Kingston or Samsung, using an “A1” (or better) grade SD card. balenaEtcher is just one of many tools to do this. I’ve really come to prefer BalenaEtcher but you can use whatever tool you like best. It is a nice Windows program that simplifies the process of creating Linux disks and is recommended by some Linux distro vendors.