Works as a virtual CRAN snapshot for source packages. It automatically downloads and installs 'tar.gz' files with dependencies, all of which were available on a specific day.
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1.0.5 by Ryota Suzuki, 2 years ago
https://github.com/r-suzuki/dateback
Browse source code at https://github.com/cran/dateback
Authors: Ryota Suzuki <suzuki@ef-prime.com>
Documentation: PDF Manual
MIT + file LICENSE license
See at CRAN