Comment (by Roland Haas):

I marked the thorns as DISABLED. We can include them like this for the next release an selectively enable them on clusters where we know Boos to be present (same as eg for PETSc based thorns). That is if the release managers are ok and the final vote in the ET call goes well.

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Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2692/inclusion-of-fuka-importer-thorns