diff --git a/pkgs/by-name/fo/foundry/package.nix b/pkgs/by-name/fo/foundry/package.nix
index 04791ba1efeb..c9e1947cf4a3 100644
--- a/pkgs/by-name/fo/foundry/package.nix
+++ b/pkgs/by-name/fo/foundry/package.nix
@@ -5,6 +5,7 @@
   fetchFromGitHub,
   libusb1,
   nix-update-script,
+  perl,
   pkg-config,
   rustPlatform,
   versionCheckHook,
@@ -14,6 +15,8 @@ rustPlatform.buildRustPackage (finalAttrs: {
   pname = "foundry";
   version = "1.7.0";
 
+  __structuredAttrs = true;
+
   src = fetchFromGitHub {
     owner = "foundry-rs";
     repo = "foundry";
@@ -23,7 +26,12 @@ rustPlatform.buildRustPackage (finalAttrs: {
 
   cargoHash = "sha256-iAWUEVgOgn2Zw9fINxyH9Bynh+flzCY40YFGoVLgG8k=";
 
+  strictDeps = true;
+
   nativeBuildInputs = [
+    # `sha3-asm`'s build script runs cryptogams perl scripts to generate
+    # Keccak assembly, so perl must be available at build time.
+    perl
     pkg-config
   ]
   ++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.DarwinTools ];
@@ -43,6 +51,13 @@ rustPlatform.buildRustPackage (finalAttrs: {
   passthru.updateScript = nix-update-script { };
 
   env = {
+    # The build script in `crates/common/build.rs` uses vergen to embed
+    # `git describe` / SHA output, but the GitHub source tarball has no `.git`
+    # directory. Pre-set the values so vergen reuses them instead of shelling
+    # out to git.
+    VERGEN_GIT_SHA = finalAttrs.src.rev;
+    VERGEN_GIT_DESCRIBE = "v${finalAttrs.version}";
+
     SVM_RELEASES_LIST_JSON =
       if stdenv.hostPlatform.isDarwin then
         # Confusingly, these are universal binaries, not amd64.
@@ -64,6 +79,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
       beeb
       mitchmindtree
       msanft
+      samooyo
     ];
     platforms = lib.platforms.unix;
   };