Based on https://wiki.mikrotik.com/wiki/Manual:Upgrading_RouterOS.

Mass firmware update.

Feature should have:

option 1

• rOS version check
• platform architecture check
• choose right firmware file
• send firmware file
• upgrade bios
• reboot device

option 2

App should create tftp server with firware files and bulk send command with his ip address. ( worse option imo).