Unlike GraalVM Java, as far as I can tell TruffleRuby doesn't provide a bundler that can create a single executable out of everything, but in principle I don't see why it couldn't.
I'm not sure I'd try replacing shell scripts with natively compiled Python binaries. That said, I use a Kotlin Scripting based bash replacement in my own work that has many useful features for shell scripting and is generally much more pleasant. You have to "install" it in the sense of having it extracted somewhere, but it runs on Win/Mac/Linux and can be used without root etc.
I wasn't so much imagining each shell script being replaced with a binary, as I was imagining deploying a single static binary "sysadmin-DSL interpreter binary" — where that "interpreter" is just "Ruby with a custom prelude, all packed together" — such that I could then name that interpreter in the shebang line for my admin scripts written in that DSL.
https://github.com/oracle/truffleruby
Unlike GraalVM Java, as far as I can tell TruffleRuby doesn't provide a bundler that can create a single executable out of everything, but in principle I don't see why it couldn't.