[Add] nix dev shell

flake.lock

@@ -53,9 +53,30 @@
       "inputs": {
         "flake-parts": "flake-parts",
         "nixpkgs": "nixpkgs",
+        "rust-overlay": "rust-overlay",
         "ttp": "ttp"
       }
     },
+    "rust-overlay": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1778987862,
+        "narHash": "sha256-V3qGt9P1eJP/r/1ONablphfGiH0RP4agQhrRANpDYx8=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "6f44d8874ac29806c8d5cae42bf8e19ebb5ce0d3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
     "ttp": {
       "flake": false,
       "locked": {

flake.nix

@@ -4,13 +4,17 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
     ttp = {
       url = "git+https://git.methanium.net/Tensamin/TTP.git?rev=7e5d1953df8592a1feba0f390d205d0ef61a3119";
       flake = false;
     };
   };
 
-  outputs = inputs@{ self, nixpkgs, flake-parts, ttp, ... }:
+  outputs = inputs@{ self, nixpkgs, flake-parts, rust-overlay, ttp, ... }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       systems = [
         "x86_64-linux"
@@ -19,7 +23,17 @@
         "aarch64-darwin"
       ];
 
-      perSystem = { self', pkgs, ... }: {
+      perSystem = { self', pkgs, system, ... }:
+        let
+          rustPkgs = import nixpkgs {
+            inherit system;
+            overlays = [ (import rust-overlay) ];
+          };
+          rustToolchain = rustPkgs.rust-bin.stable.latest.default.override {
+            extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
+          };
+        in
+        {
           packages = {
             default = self'.packages.iota;
             iota = pkgs.rustPlatform.buildRustPackage {
@@ -49,6 +63,11 @@
               passthru.dataDir = "/var/lib/iota";
             };
           };
+
+          devShells.default = pkgs.mkShell {
+            nativeBuildInputs = with pkgs; [ rustToolchain git cmake perl pkg-config ];
+            buildInputs = with pkgs; [ openssl sqlite ];
+          };
         };
 
       flake = {