basic project setup

flake.nix

@@ -1,22 +1,59 @@
 {
   description = "A Nix-flake-based Rust development environment for ESP";
 
-  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    rust-overlay.url = "github:oxalica/rust-overlay";
+  };
 
-  outputs = { self, nixpkgs }:
+  outputs = { self, nixpkgs, rust-overlay }:
     let
       supportedSystems = [ "x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin" ];
       forEachSupportedSystem = f: nixpkgs.lib.genAttrs supportedSystems (system: f {
-        pkgs = import nixpkgs { inherit system; };
+        pkgs = import nixpkgs {
+          inherit system;
+          overlays = [ rust-overlay.overlays.default ];
+        };
       });
     in
     {
-      devShells = forEachSupportedSystem ({ pkgs }: {
-        default = pkgs.mkShell {
-          packages = with pkgs; [
+      devShells = forEachSupportedSystem ({ pkgs }:
+        let
+          rust-toolchain = pkgs.rust-bin.fromRustupToolchainFile ./firmware/rust-toolchain.toml;
+        in
+        {
+          default = pkgs.mkShell {
+            packages = with pkgs; [
+              rust-toolchain
+              cargo-flamegraph
+              espup
 
-          ];
-        };
-      });
+              ldproxy
+
+              gcc
+              git
+              gnumake
+              flex
+              bison
+              gperf
+              python313
+              cmake
+              ninja
+              ccache
+              dfu-util
+              libusb1
+              python313Packages.pip
+
+              esp-generate
+
+              espflash
+              probe-rs
+            ];
+            env = {
+              LIBCLANG_PATH = "/home/clara/.rustup/toolchains/esp/xtensa-esp32-elf-clang/esp-19.1.2_20250225/esp-clang/lib";
+              PATH = "/home/clara/.rustup/toolchains/esp/xtensa-esp-elf/esp-14.2.0_20240906/xtensa-esp-elf/bin:$PATH";
+            };
+          };
+        });
     };
 }