From the limited experience I have with QMK, it  appears to be a little more Windows / Mac centric, case in point, the QMK Toolbox (recommended GUI), only contains Windows and Mac programs, for Linux it's pretty much CLI (command line interface) all the way...

There's a lot of quality documentation but I could not find a basic walk through on getting a newly designed keyboard up and running, however, I did find lots on setting up or modifying an existing designs which helped...

*Will add link to the instructions I used that did not work (left all five test board stuck in DFU mode) as soon as I find it again*

Test Board used: STM32F401/411  BlackPill

Process:

• CD to your qmk_firmware directory
• qmk new-keyboard ... follow instructions
• make ayla_411:default
• ./flash.sh ayla_411_default.bin

The flash.sh is available on git, not essential but useful...

See: https://github.com/phpbbireland/mioke80/tree/main/qmk/ayla_411

Essentials:

https://docs.qmk.fm/hardware_keyboard_guidelines#naming-your-keyboard-project

https://docs.qmk.fm/newbs_getting_started

https://docs.qmk.fm/flashing