Installing UMAP took up nearly 1-1.5 GB of swap

Atleast ~500MB of RAM and around 1-1.5GB of swap was used while installing the UMAP package into rocker/tidyverse. It also took ~10 minutes atleast, and started with installing the reticulate, Rspectra and Rcppeigen (?) packages first, after which UMAP was installed. It would certainly save time and head-banging to have umap already installed into a…