diff --git a/flake.lock b/flake.lock
index 93f455d..899a12c 100644
--- a/flake.lock
+++ b/flake.lock
@@ -4,14 +4,20 @@
             "inputs": {
                 "nixpkgs": {
                     "inputs": {},
-                    "narHash": "sha256-aLJ6PHTU1VbWBdyZbI/lLoj2JelUCGgovUsHlnAFIOE=",
+                    "narHash": "sha256-aFixJLbJ9ubH5I6ST8k9NRjb/d7o/MAu1Qc/1Sv6eRY=",
                     "originalUrl": "nixpkgs",
-                    "url": "git+file:///home/repo/nixpkgs?ref=genode-19.09&rev=cc2b10a7ed78f62dc2b3afa50d34d613c36e619e"
+                    "url": "git+https://gitea.c3d2.de/ehmry/nixpkgs.git?ref=genode-19.09&rev=489c8ae221fde2b011ebfc207eb3acb6573816ce"
                 }
             },
-            "narHash": "sha256-ZzL+Gdl1R7UJK1I8s/ff+aQVaMCB9pu0gFmTZJeb8mA=",
+            "narHash": "sha256-5QBWE3wHBpVx0L3bdYzYsUFz/qPxjekThlMNrMqu6xw=",
             "originalUrl": "git+https://git.sr.ht/~ehmry/nimble_flake",
-            "url": "git+https://git.sr.ht/~ehmry/nimble_flake?ref=master&rev=11ee779063eb4c78f7bfa281e36e1cc3ae161635"
+            "url": "git+https://git.sr.ht/~ehmry/nimble_flake?ref=master&rev=da0efe3af853cf597b52d47a04848074a6a31a13"
+        },
+        "nixpkgs": {
+            "inputs": {},
+            "narHash": "sha256-aFixJLbJ9ubH5I6ST8k9NRjb/d7o/MAu1Qc/1Sv6eRY=",
+            "originalUrl": "git+https://gitea.c3d2.de/ehmry/nixpkgs?ref=genode",
+            "url": "git+https://gitea.c3d2.de/ehmry/nixpkgs?ref=genode&rev=489c8ae221fde2b011ebfc207eb3acb6573816ce"
         }
     },
     "version": 3
diff --git a/flake.nix b/flake.nix
index 0f7a622..78e8fe6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,16 +4,51 @@
   edition = 201909;
 
   inputs.nimble.uri = "git+https://git.sr.ht/~ehmry/nimble_flake";
+  inputs.nixpkgs.uri = "git+https://gitea.c3d2.de/ehmry/nixpkgs?ref=genode";
 
-  outputs = { self, nimble }: {
+  outputs = { self, nixpkgs, nimble }:
+    let
+      localSystems = [ "x86_64-linux" ];
+      crossSystems = [ "x86_64-genode" ];
 
-    packages.x86_64-linux.hqtoxbot =
-      nimble.defaultPackage.x86_64-linux.buildNimble {
-        name = "hqtoxbot";
-        src = self;
-        homepage = "https://gitea.c3d2.de/ehmry/hqtoxbot";
-      };
+      forAllLocalSystems = f:
+        nixpkgs.lib.genAttrs localSystems (system:
+          f {
+            inherit system;
+            localSystem = system;
+            crossSystem = system;
+          });
 
-    defaultPackage.x86_64-linux = self.packages.x86_64-linux.hqtoxbot;
-  };
+      forAllCrossSystems = f:
+        with builtins;
+        let
+          f' = localSystem: crossSystem:
+            let system = localSystem + "-" + crossSystem;
+            in {
+              name = system;
+              value = f { inherit system localSystem crossSystem; };
+            };
+          list = nixpkgs.lib.lists.crossLists f' [ localSystems crossSystems ];
+        in listToAttrs list;
+
+      forAllSystems = f: (forAllLocalSystems f) // (forAllCrossSystems f);
+
+      buildBot = { system, localSystem, crossSystem }:
+
+        nimble.defaultPackage."${system}".buildNimble {
+          name = "hqtoxbot";
+          src = self;
+          homepage = "https://gitea.c3d2.de/ehmry/hqtoxbot";
+        };
+
+    in {
+
+      defaultPackage = forAllSystems buildBot;
+
+      packages = let
+        f = { system, localSystem, crossSystem }: {
+          hqtoxbot = builtins.getAttr system self.defaultPackage;
+        };
+      in forAllSystems f;
+    };
 }