Flake template for rust-overlay

[2gn]

There are great examples in examples/ folder, but I'd like to initialize flake from this project directly using nix flake's --template flag. like so:
nix flake init --template github:oxalica/rust-overlay
Could you add templates option to this project's flake.nix?

[oxalica]

More context: #188 (comment)
There seem to be quite some users 👍 on this issue. I want to know in which scenario do you want flake templates, any idea?

[holly-hacker]

Currently I keep a rust-flake.nix file around that I copy/paste in every project. I can add more for different project types (eg. one for embedded dev) but I feel like it'd be better if they were all in the same repo, so everybody can make use of them and we can be more certain that best practices are followed. That way, I can just come here, pick a template, and initialize it with a single command.

I'm not saying I expect this repo to house templates for every imaginable project type, but some starting points would be good.