add nix flake

.envrc

@@ -0,0 +1 @@
+use flake

flake.lock

@@ -0,0 +1,82 @@
+{
+  "nodes": {
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1716080827,
+        "narHash": "sha256-2R9LBCR8TlMuK4Md9ELwPVuwRQWI3pAh7Nj9e318Hk4=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "a7146b04405d93b24a1bac76d93270787872c8be",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-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"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1716097317,
+        "narHash": "sha256-1UMrLtgzielG/Sop6gl6oTSM4pDt7rF9j9VuxhDWDlY=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "8535fb92661f37ff9f0da3007fbc942f7d134b41",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "crane": "crane",
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,60 @@
+{
+  description = "breeze file server";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+
+    crane.url = "github:ipetkov/crane";
+    crane.inputs.nixpkgs.follows = "nixpkgs";
+
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, nixpkgs, crane, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = nixpkgs.legacyPackages.${system};
+
+        craneLib = crane.mkLib pkgs;
+
+        # Common arguments can be set here to avoid repeating them later
+        # Note: changes here will rebuild all dependency crates
+        commonArgs = {
+          src = craneLib.cleanCargoSource (craneLib.path ./.);
+          strictDeps = true;
+
+          buildInputs = [
+            # Add additional build inputs here
+          ] ++ pkgs.lib.optionals pkgs.stdenv.isDarwin [ pkgs.libiconv ];
+        };
+
+        breeze = craneLib.buildPackage (commonArgs // {
+          cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+        });
+      in
+      {
+        checks = {
+          inherit breeze;
+        };
+
+        packages.default = breeze;
+
+        apps.default = flake-utils.lib.mkApp {
+          drv = breeze;
+        };
+
+        devShells.default = craneLib.devShell {
+          # Inherit inputs from checks.
+          checks = self.checks.${system};
+
+          # Additional dev-shell environment variables can be set directly
+          # MY_CUSTOM_DEVELOPMENT_VAR = "something else";
+
+          # Extra inputs can be added here; cargo and rustc are provided by default.
+          packages = [
+            pkgs.rewrk
+          ];
+        };
+      });
+}
+