Initial commit

flake.nix

@@ -0,0 +1,73 @@
+{
+  description = "sysapi - system stats & command execution REST API in Rust";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    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; };
+
+        # Pin to stable. Swap to rust-overlay's nightly if you need it:
+        # pkgs.rust-bin.nightly.latest.default
+        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
+          extensions = [
+            "rust-src"
+            "rust-analyzer"
+            "clippy"
+            "rustfmt"
+          ];
+        };
+
+        # Native build inputs required to compile Rust crates with C deps
+        nativeBuildInputs = with pkgs; [
+          rustToolchain
+          pkg-config
+        ];
+
+        # Runtime / link-time dependencies
+        buildInputs = with pkgs; [
+          openssl # required by jsonwebtoken / reqwest
+        ];
+
+      in
+      {
+        devShells.default = pkgs.mkShell {
+          inherit nativeBuildInputs buildInputs;
+
+          # Let pkg-config find openssl
+          PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
+
+          # Tells the openssl-sys crate where to look (fallback if pkg-config fails)
+          OPENSSL_DIR = "${pkgs.openssl.dev}";
+          OPENSSL_LIB_DIR = "${pkgs.openssl.out}/lib";
+          OPENSSL_INCLUDE_DIR = "${pkgs.openssl.dev}/include";
+
+          # Points rust-analyzer at the stdlib source
+          RUST_SRC_PATH = "${rustToolchain}/lib/rustlib/src/rust/library";
+
+          shellHook = ''
+            echo "🦀 sysapi dev shell ready"
+            echo "   rustc  $(rustc --version)"
+            echo "   cargo  $(cargo --version)"
+          '';
+        };
+      }
+    );
+}