Having fun with Julia and R setup in Termux on Android with RCall julia library and being able to toggle in between them.
For some reason not able to install.packages in R in Julia but not a big deal since can just install packages in regular R session in Termux on Android.
Fyi 
I remember doing this (at least the Julia part ) circa Julia 1.6, but at some point it stopped working on my device. Is there some documentation of the process online somewhere?
Hi, @kevbonham .
I used the published manual installation suggestions:
And just changed the download package name to correspond to the aarch64 package name on the downloads page
I wasn’t able to install julia using recommended juliaup method (problem compiling on the device) but that might have been because at the time I didn’t have all the gnu build packages properly installed.
Once julia was installed, I was able to use julia’s standard package manager to install RCall and Conda. However, the package manger Pkg did initially have trouble compiling those packages but helpfully suggested I do
Pkg.build("pkgOfInterest")
Which got the julia packages to compile.