Last week tried to compile and run Io on the GraalVM but was stopped by a com.oracle.truffle.api.dsl.UnsupportedSpecializationException: Unexpected values provided for LLVMNeNodeGen#1: [false, 0], [Boolean,Integer] error.

coming from:

  at <llvm> CHash_at_(Unknown)
        at <llvm> IoState_symbolWithUArray_copy_(../../../../Desktop/io/libs/iovm/source/IoState_symbols.c:44:1123)
        at <llvm> IoState_symbolWithCString_length_(../../../../Desktop/io/libs/iovm/source/IoState_symbols.c:75:2141)
        at <llvm> IoState_symbolWithCString_(../../../../Desktop/io/libs/iovm/source/IoState_symbols.c:79:2268)
        at <llvm> IoState_retainedSymbol(../../../../Desktop/io/libs/iovm/source/IoState.c:245:8336)
        at <llvm> IoState_setupQuickAccessSymbols(../../../../Desktop/io/libs/iovm/source/IoState.c:251:8564)
        at <llvm> IoState_new_atAddress(../../../../Desktop/io/libs/iovm/source/IoState.c:106:2910)
        at <llvm> IoState_new(../../../../Desktop/io/libs/iovm/source/IoState.c:240:8195)
        at <llvm> main(../../../../Desktop/io/tools/source/main.c:37:599)
        at org.graalvm.polyglot.Value.execute(Value.java:839)

Waiting for the day when I can embed Io on Java projects.

It's a great dynamic language but suffers the same problems every other language with a small user-base suffers.