GraalVM provides a GNU-compatible R runtime to run R programs directly or in the REPL mode. It is based on GNU R 4.0.3, reuses the base packages of GNU R and is compatible with the ecosystem.
The R language support can be added to GraalVM using the gu utility.
More information is available on the GraalVM website: http://www.graalvm.org/reference-manual/r/