sysbuild: free standing configurations

[arifbalik]

I have two apps that I want to configure and build with sysbuild. The apps are under apps/app1 and apps/app2 and I want to include sysbuild.conf, sysbuild.cmake and the sysbuild folder under apps, but of course I can not run west on apps and sysbuild wont pick up any config under apps if I run west on app1 or app2

What are your suggestions in this case. I also have mcuboot enabled for both app so a single sysbuild.conf would be very nice.

apps
├── app1
│   └── ...
├── app2
│   └── ...
├── sysbuild.conf
├── sysbuild.cmake
└── sysbuild
    ├── app1.conf
    ├── app2.conf
    └── mcuboot.conf

[nordicjm]

Not supported, you need a primary image. Note that sysbuild is designed for building one project, not for building multiple at the same time, so one project might consist of multiple images for a single device but should not really consist of 2 completely independent and different applications that e.g. occupy the same regions in memory (although building will still work for that, it is just not designed for that usecase)