--watch option for @monodon/rust

[wSedlacek]

It would be nice to be able to have live updates particularly for web servers.
I am very new to rust but cargo-watch seems to be the go to for this.
Would love to see some solution for live reload added.

[Cammisuli]

I was thinking of adding support for cargo-watch, but instead I wanted to utilize the watch functionality in nx.

https://nx.dev/recipes/managing-repository/workspace-watching

Admittedly, there's a few things with nx watch that I'd like to fix, but using it would be the end goal.

[100000001]

Probably not the way to go, but for now I installed watchexec and added this to the project.json targets:

"serve": {
  "executor": "nx:run-commands",
  "options": {
    "cwd": "apps/backend",
    "command": "watchexec --exts rs,toml -r -- cargo run"
  }
}

So now npx nx run-many -t serve starts both the front- and backend

[KerickHowlett]

@Cammisuli Are there any upstream blockers keeping you from implementing a watch task, or is it more of an issue with finding any free time and/or prioritization?