init nix flake

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1678819893,
+        "narHash": "sha256-lfA6WGdxPsPkBK5Y19ltr5Sn7v7MlT+jpZ4nUgco0Xs=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "7067edc68c035e21780259ed2d26e1f164addaa2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,23 @@
+{
+  description = "A very basic flake";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+
+  outputs = { self, nixpkgs }: {
+
+    packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello;
+
+    packages.x86_64-linux.default = self.packages.x86_64-linux.hello;
+
+    devShells.x86_64-linux.default = let
+      pkgs = import nixpkgs { system = "x86_64-linux"; };
+    in pkgs.mkShell {
+      buildInputs = with pkgs; [
+        elixir
+        cmake
+        imagemagick
+      ];
+    };
+
+  };
+}