As Mark mentioned recently in #33362 [0], the Cuirass web interface is still missing an important feature compared to Hyrda:
"[...] the ability to compare the results of two evaluations and show the *differences* between those results, i.e. to enumerate the newly failing jobs, the newly succeeding jobs, and the newly aborted jobs." I remember using this capability in Hydra and it made the branching workflow much more efficient than is currently possible. [0] https://issues.guix.gnu.org/33362#11
