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 docker image. Presume the reticulate package was required to allow umap_learn, which

Worth noting that if the swap space and RAM are insufficient, the umap installation will go through the entire lengthy process before providing an error, that usually does not indicate anything about swap/RAM.

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