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1.0-6 by Paul Murrell, 5 years ago
https://github.com/pmur002/metapost, https://stattech.wordpress.fos.auckland.ac.nz/2018/12/03/2018-12-metapost-three-ways/
Browse source code at https://github.com/cran/metapost
Authors: Paul Murrell
Documentation: PDF Manual
GPL (>= 2) license
Imports grid, gridBezier
Suggests grImport
System requirements: mpost
Suggested by gdiff.
See at CRAN