feat: added nix flake

.gitignore

@@ -75,3 +75,5 @@ fabric.properties
 /tcpDialer.go
 /hochwasser
 /hochwasser.exe
+
+result

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1667395993,
+        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1672428209,
+        "narHash": "sha256-eejhqkDz2cb2vc5VeaWphJz8UXNuoNoM8/Op8eWv2tQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "293a28df6d7ff3dec1e61e37cc4ee6e6c0fb0847",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,27 @@
+{
+  description = "Build Golang";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, flake-utils }:
+  flake-utils.lib.eachDefaultSystem (system: 
+        let pkgs = import nixpkgs { inherit system; };
+      in
+      rec {
+        devShell = pkgs.mkShell {
+          buildInputs = [
+            pkgs.go
+          ];
+        };
+        defaultPackage = pkgs.buildGoModule {
+          pname = "Hochwasser";
+          name = "Hochwasser";
+          src = ./.;
+          vendorSha256 = "sha256-wc52mzV8cs4X1pQHIDcwh2oZiPLLUJwGN/nU9HJvZpQ=";
+        };
+        apps.default = { type = "app"; program = "${defaultPackage}/bin/Hochwasser"; };
+      });
+}