I use Julia as my main driver these days and have shared some of this experience but not all

1) I use VScode and have had 0 problems with Revise. It Just Works when using the Julia extension + built in REPL. I actually prefer the Julia environment to Python in VScode, I have way fewer problems when doing a Notebook-like workflow where I’m writing library code at the same time

2) Agreed, I also wish there was a better story here. I’m constantly frustrated by how little static support there is. It’s getting better though, eg precompilation in 1.6.

3) I haven’t had any issues here outside of the occasional update to VScode Julia extension that botches things

4) I’ve had quite a lot of luck on discourse and GitHub issues, as well as slack for the occasional small question

Rust is great for use cases where you have specific resource management needs, although seems an odd choice for general purpose scientific computing.