add cross compile inventory tag

Author: brittonr

inventory/core/machines.nix

@@ -153,6 +153,7 @@ _: {
         "docker"
         "llm-client"
         "password-manager"
+        "cross-compile"
       ];
       deploy = {
         targetHost = "[email protected]";

inventory/tags/cross-compile.nix

@@ -0,0 +1,26 @@
+{ pkgs, ... }:
+{
+  # Enable cross-compilation support
+  nixpkgs.config.allowUnsupportedSystem = true;
+
+  # Add cross-compilation toolchains
+  environment.systemPackages = with pkgs; [
+    # Cross-compilation tools
+    qemu
+
+    # Build essentials for cross-compilation
+    binutils-unwrapped
+    gcc-unwrapped
+
+    # Useful for debugging cross-compiled binaries
+    file
+    binutils # provides readelf
+  ];
+
+  # Enable binfmt for running cross-compiled binaries via QEMU
+  boot.binfmt.emulatedSystems = [
+    "aarch64-linux"
+    "armv7l-linux"
+    "riscv64-linux"
+  ];
+}