Comment (by Roland Haas):

Is it possible to include the (hopefully small) parts of Boost needed in the KadathThorn source code?

While I can see that eventually Boost may be included in the ET (for Kadath, Reprimand, CarpetX), it is a large amount of code and not always good about backwards compatibility so one can likely end up a situation where different thorns require conflicting Boost versions.

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