From cf5364dc557ffa66550fcbab29ddbb0c782717f4 Mon Sep 17 00:00:00 2001
From: Alexander Sosedkin <monk@unboiled.info>
Date: Thu, 16 Dec 2021 23:29:59 +0100
Subject: [PATCH] flake.nix: throw on unsupported system type

---
 flake.nix | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/flake.nix b/flake.nix
index 36f55d0..443e35b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,16 +27,19 @@
 
       lib.nixOnDroidConfiguration =
         { config
-        , system ? "aarch64-linux"  # unused
+        , system ? "aarch64-linux"  # unused, only supported variant
         , extraModules ? [ ]
         , extraSpecialArgs ? { }
         , pkgs ? pkgs'
         , home-manager-path ? home-manager.outPath
         }:
-        import ./modules {
-          inherit config extraModules extraSpecialArgs home-manager-path pkgs;
-          isFlake = true;
-        };
+        if system != "aarch64-linux" then
+          throw "aarch64-linux is the only currently supported system type"
+        else
+          import ./modules {
+            inherit config extraModules extraSpecialArgs home-manager-path pkgs;
+            isFlake = true;
+          };
       apps.nix-on-droid.aarch64-linux = app;
       defaultApp.aarch64-linux = app;
     };