Fast boot OS for QT Application

[onurkse]

Hi guys, I just want to run QT application on Raspberry Pi screen. In my current design, I am running my QT application on Raspberry Pi OS. But it takes too long to wait for the OS to boot. How can I make the raspberry pi boot in a very short time like 2-3 seconds and have my QT application appear on the screen? Is there a Raspberry Pi OS modified to run QT only?

[SGaist]

Hi and welcome to devnet,

You should then look into something like Boot2Qt (commercial product of the Qt Company) or the yocto project.

[onurkse]

Unfortunately, I cannot buy a commercial product. I am looking for a solution that I can handle for free. I will try yocto project.

[pasi]

Even not using yocto but buildroot the concepts of what is required to make rpi boot faster are there. Also using Qt application.
https://www.furkantokac.com/rpi3-fast-boot-less-than-2-seconds/