try just disabling the checks

overlays/lix/default.nix

@@ -0,0 +1,14 @@
+{ ... }:
+final: prev: {
+  lix =
+    (prev.lix.override {
+      aws-sdk-cpp = null;
+    }).overrideAttrs
+      (attrs: {
+        version = "${attrs.version}-oizys";
+
+        # probs a mistake ¯\_(ツ)_/¯ 
+        # surely they wouldn't push a broken CL....surely
+        doCheck = false;
+      });
+}