ml <- packager::get_package_makelist()
cbind(lapply(ml, function(x) x[["target"]]),
lapply(ml, function(x) x[["alias"]]))
cl <- packager::get_package_makelist(is_cran = TRUE)
setdiff(sapply(ml, function(x) x[["target"]]),
sapply(cl, function(x) x[["target"]]))
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