add qemu-user

flake.nix

@@ -5,6 +5,7 @@
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     home-manager.url = "github:nix-community/home-manager";
     deploy-rs.url = "github:serokell/deploy-rs";
+    #mobile-nixos.url = "github:NixOS/mobile-nixos";
   };
 
   outputs = { ... }@inputs: import ./outputs.nix inputs;

hosts/lappy/lappy.nix

@@ -12,7 +12,10 @@
     profiles.sway
     profiles.dnscrypt
     profiles.gaming
-    # For sci-hub and whenever websites break
+    # so i can build nixos mobile
+    profiles.qemu_user
+
+    # for sci-hub and whenever websites break
     # profiles.tor
     # profiles.sshd
   ];

profiles/qemu_user/qemu_user.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, ... }: {
+  boot.binfmt.registrations.aarch64 = {
+    interpreter = "${pkgs.qemu}/bin/qemu-aarch64";
+    magicOrExtension =
+      "\\x7fELF\\x02\\x01\\x01\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x02\\x00\\xb7\\x00";
+    mask =
+      "\\xff\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xff\\xff\\xff\\xff\\xff\\x00\\xff\\xfe\\xff\\xff\\xff";
+  };
+  nix.sandboxPaths = [ "/run/binfmt" "${pkgs.qemu}" ];
+  nix.extraOptions = ''
+    extra-platforms = aarch64-linux ${pkgs.system}
+  '';
+}