Consider: bootc install --package-mode?

[jmarrero]

During CentOS Connect, @ericcurtin, @jtligon, and @Conan-Kudo raised the question of whether bootc could also deploy package-mode systems. The idea is to allow users who do not want an image-mode system to still leverage the same container-based toolchain to build and deploy package-mode systems.

I am not yet sure what this would look like in practice, but it seems that some of the work @cgwalters is doing in #1957 could be a starting point for supporting something along these lines.

It would be good to expand on what the expectations are for such a model. In the past, Colin has mentioned the possibility of using bootc for the initial install, and then, from that point forward, having users manage their systems using traditional package managers like dnf or apt.

[jeckersb]

This is closely related (almost duplicate) of #1668