Poettering: Fitting Everything Together

Lennart Poettering designs
his ideal desktop operating system in great detail:

First and foremost, I think the focus must be on an image-based
design rather than a package-based one. For robustness and security
it is essential to operate with reproducible, immutable images that
describe the OS or large parts of it in full, rather than operating
always with fine-grained RPM/dpkg style packages. That's not to say
that packages are not relevant (I actually think they matter a
lot!), but I think they should be less of a tool for deploying code
but more one of building the objects to deploy.