setup build env with nix

flake.nix

@@ -0,0 +1,75 @@
+{
+  description = "sp1";
+  inputs = {
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    nixpkgs.url = "github:NixOS/nixpkgs/release-24.11";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    crane.url = "github:ipetkov/crane";
+  };
+
+  outputs =
+    inputs@{
+      flake-parts,
+      rust-overlay,
+      crane,
+      ...
+    }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+
+      ];
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "aarch64-darwin"
+        "x86_64-darwin"
+      ];
+      perSystem =
+        {
+          config,
+          self',
+          inputs',
+          pkgs,
+          system,
+          ...
+        }:
+        let
+          craneLib = (crane.mkLib pkgs).overrideToolchain rust-toolchain;
+          rust-toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain;
+        in
+        {
+          _module.args.pkgs = import inputs.nixpkgs {
+            inherit system;
+            overlays = with inputs; [
+              rust-overlay.overlays.default
+            ];
+          };
+          devShells.default = pkgs.mkShell {
+            buildInputs = [
+              rust-toolchain
+            ];
+          };
+          packages =
+            let
+              cargoArtifacts = craneLib.buildDepsOnly {
+                src = craneLib.cleanCargoSource ./.;
+                doCheck = false;
+              };
+            in
+            {
+              default = craneLib.buildPackage {
+                inherit cargoArtifacts;
+                src = craneLib.cleanCargoSource ./.;
+                pname = "sp1-cli";
+                name = craneLib.crateNameFromCargoToml { cargoToml = ./path/to/Cargo.toml; };
+                doCheck = false;
+              };
+            };
+
+          formatter = pkgs.nixfmt-rfc-style;
+        };
+    };
+}