How do I create a binary from .jl files?

[mkitti]

Here are a few videos on how to use PackageCompiler.jl to create binary executables and shared libraries.

JuliaCon 2020 | Shippable apps and custom sysimages with PackageCompiler.jl | Kristoffer Carlsson

Creating Shared Library Bundles with Package Compiler | K Carlsson, S Byrne, K Squire | JuliaCon2021

Deep Dive: Creating Shared Libraries with PackageCompiler.jl | K Carlsson et al | JuliaCon2021

The documentation for this can be found below:

Apps · PackageCompiler

As for the REPL, if you do not want to use for its interactive features, I would consider using it as a development tool that implements a compilation cache.