diff --git a/hosts/nord/configuration.nix b/hosts/nord/configuration.nix
index 93e1ece..5a6ba71 100644
--- a/hosts/nord/configuration.nix
+++ b/hosts/nord/configuration.nix
@@ -44,6 +44,8 @@
     #../../profiles/domeneshop-dyndns # handled by noximilien
   ];
 
+  nix.settings.max-jobs = 1; # this host do be stinky
+
   networking.firewall.allowedTCPPorts = [ 57621 ]; # spotify local discovery
 
   #networking.wireguard.interfaces."wg0".ips = [ "172.22.48.4/24" ]; # fyrkat
diff --git a/hosts/noximilien/configuration.nix b/hosts/noximilien/configuration.nix
index 015243b..5016024 100644
--- a/hosts/noximilien/configuration.nix
+++ b/hosts/noximilien/configuration.nix
@@ -100,6 +100,8 @@
     "kuklef.se"
   ];
 
+  nix.settings.max-jobs = 1; # this host do be stinky
+
   networking.hostId = "e1ffd469"; # needed for zfs: head -c 8 /etc/machine-id
 
   #networking.wireguard.interfaces."wg0".ips = [ "172.22.48.3/24" ]; # fyrkat
diff --git a/profiles/auto-upgrade.nix b/profiles/auto-upgrade.nix
index b3c3ee0..792d370 100644
--- a/profiles/auto-upgrade.nix
+++ b/profiles/auto-upgrade.nix
@@ -8,7 +8,16 @@
   system.autoUpgrade.enable = true;
   #system.autoUpgrade.allowReboot = true; # reboot after a kernel (module) or initrd upgrade, consider also setting `rebootWindow`
 
-  environment.etc."current-system-flake".source = inputs.self; # the plan was to allow me to locate the new flake.lock, but alas https://github.com/NixOS/nix/issues/6895
+  environment.etc."current-system-flake".source = inputs.self;
+  # workaround for https://github.com/NixOS/nix/issues/6895
+  environment.etc."current-system-flake-inputs.json".source
+    = pkgs.writers.writeJSON "flake-inputs.json" (
+      lib.flip lib.mapAttrs inputs (name: input:
+        # inputs.*.sourceInfo sans outPath, since writeJSON will otherwise serialize sourceInfo like derivation
+        lib.filterAttrs (key: val: !builtins.elem key ["outPath"]) (input.sourceInfo or {})
+          // { store-path = input.outPath; } # comment this line if you don't want to retain a store reference to the flake inputs
+      )
+    );
 
   #system.autoUpgrade.flake = inputs.self.outPath; # a nix store path
   #system.autoUpgrade.flake = "github:pbsds/nix-config"; # TODO: use this instead?