add Nix flake

.gitignore

@@ -1,2 +1,6 @@
+# Zig
 .zig-cache/
 zig-out/
+
+# Nix
+result*

deps.nix

@@ -0,0 +1,27 @@
+# generated by zon2nix (https://github.com/nix-community/zon2nix)
+
+{ linkFarm, fetchzip }:
+
+linkFarm "zig-packages" [
+  {
+    name = "12201bbf05e1fb73323a9b13d2599dc4bf82851e6d328d7523a1af5b861a87edf286";
+    path = fetchzip {
+      url = "https://git.sr.ht/~leon_plickat/zig-ini/archive/879c74a3a801d49fa34343aebd55a22f591899b3.tar.gz";
+      hash = "sha256-in7abjMSWtnmrri2tbTJW2WVL4ZLrKkTT8Bxy8njJT4=";
+    };
+  }
+  {
+    name = "12202727aaaf0e742d4945be55af1ace8b25902095e0c1b0a24b70cc80a81b7ac518";
+    path = fetchzip {
+      url = "https://git.sr.ht/~leon_plickat/zig-spoon/archive/fdba8e643c9558254bf4e6c600dfbd782fa7a267.tar.gz";
+      hash = "sha256-c8V+HqtDMW6JBDKilzrC39GizvWPp1eMton1X4PpxJI=";
+    };
+  }
+  {
+    name = "1220c65aff8d8dd585df1ca026dc5d5860977cd0e303340029b77549ebb9c882b8c7";
+    path = fetchzip {
+      url = "https://git.sr.ht/~leon_plickat/zig-exre/archive/565ff0a83ea62389714ad439c49fa6bfdc21f5a9.tar.gz";
+      hash = "sha256-JJ34UiOwbja2OUQ8bAnIXHfq7ezFd4MNk2+INNt4YLM=";
+    };
+  }
+]

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1724224976,
+        "narHash": "sha256-Z/ELQhrSd7bMzTO8r7NZgi9g5emh+aRKoCdaAv5fiO0=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "c374d94f1536013ca8e92341b540eba4c22f9c62",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs",
+        "utils": "utils"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,44 @@
+{
+  description = "NFM - Neat File Manager.";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+    utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs =
+    { self
+    , nixpkgs
+    , utils
+    ,
+    }: utils.lib.eachDefaultSystem
+      (system:
+      let
+        pkgs = import nixpkgs { inherit system; };
+      in
+      rec
+      {
+        packages.nfm = pkgs.stdenv.mkDerivation {
+          name = "nfm";
+          src = ./.;
+          dontConfigure = true;
+          dontFixup = true;
+
+          nativeBuildInputs = with pkgs; [ zig_0_13.hook ];
+
+          postPatch = ''
+            mkdir -p $ZIG_GLOBAL_CACHE_DIR
+            ln -s ${pkgs.callPackage ./deps.nix { }} $ZIG_GLOBAL_CACHE_DIR/p
+          '';
+        };
+
+        packages.default = packages.nfm;
+
+        devShells.default = nixpkgs.legacyPackages.${system}.mkShell {
+          buildInputs = with pkgs; [
+            zig_0_13
+          ];
+        };
+      });
+}
+