Add Nix shell

.envrc

@@ -0,0 +1,3 @@
+#use_flake_if_supported
+use flake
+# eval "$shellHook"

flake.nix

@@ -0,0 +1,49 @@
+{
+ description = "Risinglight";
+
+ inputs = {
+ nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable"; 
+ rust-overlay.url = "github:oxalica/rust-overlay";
+ flake-utils.url = "github:numtide/flake-utils";
+ };
+
+ outputs = { nixpkgs, flake-utils, rust-overlay,... }: let
+ lib = {
+ inherit (flake-utils.lib) defaultSystems eachSystem;
+ };
+ supportedSystems = [ "x86_64-linux" ];
+ in lib.eachSystem supportedSystems (system: let
+
+ pkgs = import nixpkgs {
+ inherit system;
+ overlays = [
+ (import rust-overlay)
+ ];
+ };
+ pinnedRust = (pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain).override {
+ extensions = ["rustc-dev" "rust-src" "rust-analyzer-preview" ];
+ targets = [ "x86_64-unknown-linux-gnu" ];
+ };
+ rustPlatform = pkgs.makeRustPlatform {
+ rustc = pinnedRust;
+ cargo = pinnedRust;
+ };
+ in {
+
+devShell = pkgs.mkShell {
+ hardeningDisable = [
+ "fortify"
+ ];
+ nativeBuildInputs = [
+ pinnedRust
+ pkgs.protobuf
+ ];
+ buildInputs = [
+ ];
+
+ shellHook = ''
+ '';
+};
+
+ });
+}