Hi @Alt0216,
The Mail-us-your-phone service is delayed. We were in the testing phase which was also getting hampered by the shortage of staff and resources. Now with the covid-19 related lock-downs across nations the process has come to a standstill. We hope to find a solution to this as a number of users are not comfortable flashing the device on their own.
One alternative is we are planning on releasing a computer based installer which can do the installation. The user has to connect the smartphone and follow the instructions on the screen. This installer should be released next week. Works on linux as a snap install check the screenshot below . It will show up as ‘easy installer’
Plan is to adapt it for Mac and Windows PC’s. Open up the source code so other developers can also help with the development and add more devices to it. In its current version it supports only some Samsung models.