diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 9576f2c6adf0..f4f2f8e6b9ff 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -28037,6 +28037,11 @@
     githubId = 13259982;
     name = "Vanessa McHale";
   };
+  vmfunc = {
+    github = "vmfunc";
+    githubId = 59031302;
+    name = "vmfunc";
+  };
   vncsb = {
     email = "viniciusbernardino1@hotmail.com";
     github = "vncsb";
diff --git a/pkgs/by-name/si/sif/package.nix b/pkgs/by-name/si/sif/package.nix
new file mode 100644
index 000000000000..6d231958f6d2
--- /dev/null
+++ b/pkgs/by-name/si/sif/package.nix
@@ -0,0 +1,42 @@
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  nix-update-script,
+}:
+
+buildGoModule {
+  pname = "sif";
+  version = "0-unstable-2026-01-11";
+
+  src = fetchFromGitHub {
+    owner = "vmfunc";
+    repo = "sif";
+    tag = "automated-release-c988e54";
+    hash = "sha256-/9LRmSrji/8SCD9aHx82HwBfBRPVKzOnogw+uvDI+WI=";
+  };
+
+  vendorHash = "sha256-ztKXnOjZS/jMxsRjtF0rIZ3lKv4YjMdZd6oQFRuAtR4=";
+
+  subPackages = [ "cmd/sif" ];
+
+  env.CGO_ENABLED = 0;
+
+  ldflags = [
+    "-s"
+    "-w"
+  ];
+
+  # network-dependent tests
+  doCheck = false;
+
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "Modular pentesting toolkit written in Go";
+    homepage = "https://github.com/vmfunc/sif";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ vmfunc ];
+    mainProgram = "sif";
+  };
+}