build(xatu): add flake package

src/flake/apps.nix

@@ -3,6 +3,7 @@
   lib,
   formatter,
   system,
+  xatu,
 }:
 let
   pkgs = inputs.nixpkgs.legacyPackages.${system};
@@ -17,6 +18,7 @@ in
           formatter
           pkgs.statix
           pkgs.deadnix
+          xatu
         ];
         text = ''
           treefmt
@@ -33,6 +35,7 @@ in
               src/xatu/testdata \
               third_party \
             -- .
+          xatu configs/nixos flake.nix src/dotfiles src/flake src/xatu/package.nix
           treefmt
         '';
       }

src/flake/default.nix

@@ -21,6 +21,15 @@ in
       inherit inputs system;
     }).config.build.wrapper;
 
+  packages.${system} = import ./packages.nix {
+    inherit
+      inputs
+      lib
+      root
+      system
+      ;
+  };
+
   apps.${system} = import ./apps.nix {
     inherit
       inputs
@@ -28,6 +37,7 @@ in
       system
       ;
     formatter = self.formatter.${system};
+    xatu = self.packages.${system}.xatu;
   };
 
   inherit (dotfiles) nixosConfigurations;

src/flake/packages.nix

@@ -0,0 +1,18 @@
+{
+  inputs,
+  lib,
+  root,
+  system,
+}:
+let
+  pkgs = inputs.nixpkgs.legacyPackages.${system};
+in
+{
+  xatu = import ../xatu/package.nix {
+    inherit
+      lib
+      pkgs
+      root
+      ;
+  };
+}

src/xatu/package.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  pkgs,
+  root,
+}:
+pkgs.rustPlatform.buildRustPackage {
+  pname = "xatu";
+  version = "0.1.0";
+
+  src = lib.fileset.toSource {
+    inherit root;
+    fileset = lib.fileset.unions [
+      (root + "/Cargo.lock")
+      (root + "/Cargo.toml")
+      (root + "/src/ariadne")
+      (root + "/src/machoke")
+      (root + "/src/monorepo")
+      (root + "/src/status")
+      (root + "/src/xatu")
+    ];
+  };
+
+  cargoBuildFlags = [
+    "-p"
+    "xatu"
+    "--bin"
+    "xatu"
+  ];
+  cargoLock.lockFile = root + "/Cargo.lock";
+}