added dev shell example for Rust

home/Projects/optimized-pre-config-rust/flake.nix

@@ -0,0 +1,47 @@
+{
+  description = "A devShell for Rust Development";
+
+  inputs = {
+    nixpkgs.url      = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+    flake-utils.url  = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        overlays = [ (import rust-overlay) ];
+        pkgs = import nixpkgs {
+          inherit system overlays;
+        };
+      in
+      with pkgs;
+      {
+        devShells.default = mkShell {
+          buildInputs = [
+            (rust-bin.fromRustupToolchainFile ./rust-toolchain.toml)
+            mold
+            pkg-config
+            openssl
+            sqlite
+            cargo-deny
+            cargo-audit
+            cargo-update
+            cargo-edit
+            cargo-outdated
+            cargo-license
+            cargo-tarpaulin
+            cargo-cross
+            cargo-zigbuild
+            cargo-nextest
+            cargo-spellcheck
+            cargo-modules
+            cargo-bloat
+            taplo
+            bacon
+            helix
+          ];
+        };
+      }
+    );
+}