The Mini Modules layout is an N gauge layout constructed using Johannes Modules, presented by Small N Working.
This layout appeared at the following AMRC exhibitions:
More info can be found on this layout at https://www.smallnworking.co.uk/johannes-modules
Johannes Modules is a method of building a layout using modules based on Kato Unitrack. More info can be found at https://www.johannes-module.de/module (website is in German but the pictures and diagrams speak for themselves).