Software Heritage (see [1] for their website and [2] for a brief intro I gave at useR! 2019 in Toulouse) covers GitHub and CRAN [3]. It is by now 'in collaboration with UNESCO', supported by a long and posh list of sponsors [4] and about as good as it gets to 'ensure longevity of artifacts'.
It is of course not meant for downloads during frequent builds. But given the 'quasi-institutional nature' and sponsorship, we could think of using GitHub as an 'active cache'. But CRAN is CRAN and as it now stands GitHub is not trusted. ¯\_(ツ)_/¯ Dirk [1] https://www.softwareheritage.org/ [2] https://dirk.eddelbuettel.com/papers/useR2019_swh_cran_talk.pdf [3] https://www.softwareheritage.org/faq/ question 2.1 [4] https://www.softwareheritage.org/support/sponsors/ -- dirk.eddelbuettel.com | @eddelbuettel | e...@debian.org ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel