From 3cca4e91054a4d2bb5335feb19138362ce0fe417 Mon Sep 17 00:00:00 2001
From: Siddarth Kumar <siddarthkay@gmail.com>
Date: Thu, 28 May 2026 16:53:25 +0530
Subject: [PATCH] nix: fix fetching of crates which now require agent overlay

---
 flake.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index 3f6a3dc..ad41bba 100644
--- a/flake.nix
+++ b/flake.nix
@@ -12,7 +12,16 @@
         "x86_64-darwin" "aarch64-darwin"
       ];
       forAllSystems = nixpkgs.lib.genAttrs stableSystems;
-      pkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+      # crates.io's WAF returns 403 for the default `curl/X.Y.Z` User-Agent.
+      fetchurlUserAgentOverlay = final: prev: {
+        fetchurl = args: prev.fetchurl (args // {
+          curlOptsList = (args.curlOptsList or []) ++ [ "-A" "logos-storage-nix" ];
+        });
+      };
+      pkgsFor = forAllSystems (system: import nixpkgs {
+        inherit system;
+        overlays = [ fetchurlUserAgentOverlay ];
+      });
     in
     {
       packages = forAllSystems (system: let