Rust will be much lighter than any JVM app, but a fairly complex JVM app can be compiled to a self-contained JVM distribution on around 25MB these days... you u

Rust will be much lighter than any JVM app, but a fairly complex JVM app can be compiled to a self-contained JVM distribution on around 25MB these days... you use jlink to compile the app and parts of the JVM that you actually use. Not to mention you can use GraalVM native-image to compile to a binary directly, in which case it'll be even smaller.