GraalVM's Truffle languages try to make this easier. You still have to write a parser and an interpreter. But from these you get a compiler for free. Plus tools

GraalVM's Truffle languages try to make this easier. You still have to write a parser and an interpreter. But from these you get a compiler for free. Plus tools like a debugger, I think maybe a language server as well. And your language can easily call out to the Java standard library, which solves the problem of standard packages. But you're tied to Java.