Bars is the spiritual successor of Pavilions Layouts which came before RSB.
But compared to RSB, mutli-route and multi-position support mainly (Bar’s target is to reproduce the usefulness and flexibility of Layouts), the critical addition being Topic route support. Plus I don’t presently support params … I’ve yet to hit a use case. I also don’t bundle any components aside from the demo big letters - this is deliberate and this is meant to be more of an Admin/Developers framework (much like Layouts was).
The roadmap might be more ambitious too - if I get funding I may add the mobile functionality that Layouts had - anyone is free to contact me to sponsor that work.