https://github.com/TrustedComputingGroup/concise-evidence is based on CoRIM.

The structure of Concise Evidence is directly symmetric to the CoRIM structure (as it reuses the CoRIM CDDL definitions).
Corresponding Appraisal Procedures for Evidence can be boiled down to a minimum set of code that has to be implemented and would match the appraisal guidance that will come with CoRIM's default profile (DICE), PSA Endorsements, and future profiles.

Adding Concise Evidence support seems to be a quite low hanging fruit and provides an convenient alternative option to EAT in cases where Attester composition becomes a bit more complex.