We were very happy to have Tobias Grosser as guest for the past two days (11.08.-12.08). Tobias is an associate professor in the School of Informatics at the University of Edinburgh and a member of the Edinburgh Compiler and Architecture Design Group. At the CCC he had several (socially distant) exchanges with members of the groups exchanging ideas on optimizing compilers and intermediate representations. Tobias also gave a talk with several physical (and distant, cf. picture) and virtual attendees. He talked about a multi-level intermediate representation for hardware description languages, reporting on a recent PLDI publication.