diff --git a/pkgs/by-name/nm/nmapsi4/package.nix b/pkgs/by-name/nm/nmapsi4/package.nix
deleted file mode 100644
index 37287dcef021..000000000000
--- a/pkgs/by-name/nm/nmapsi4/package.nix
+++ /dev/null
@@ -1,67 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchFromGitHub,
-  cmake,
-  pkg-config,
-  dnsutils,
-  nmap,
-  libsForQt5,
-}:
-
-stdenv.mkDerivation rec {
-  pname = "nmapsi4";
-  version = "0.5-alpha2";
-
-  src = fetchFromGitHub {
-    owner = "nmapsi4";
-    repo = "nmapsi4";
-    rev = "v${version}";
-    hash = "sha256-q3XfwJ4TGK4E58haN0Q0xRH4GDpKD8VZzyxHe/VwBqY=";
-  };
-
-  nativeBuildInputs = [
-    cmake
-    pkg-config
-    libsForQt5.wrapQtAppsHook
-  ];
-
-  buildInputs = with libsForQt5; [
-    qtbase
-    qtscript
-    qtwebengine
-  ];
-
-  postPatch = ''
-    substituteInPlace src/platform/digmanager.cpp \
-      --replace '"dig"' '"${dnsutils}/bin/dig"'
-    substituteInPlace src/platform/discover.cpp \
-        --replace '"nping"' '"${nmap}/bin/nping"'
-    for f in \
-      src/platform/monitor/monitor.cpp \
-      src/platform/nsemanager.cpp ; do
-
-      substituteInPlace $f \
-        --replace '"nmap"'  '"${nmap}/bin/nmap"'
-    done
-  '';
-
-  postInstall = ''
-    mv $out/share/applications/kde4/*.desktop $out/share/applications
-    rmdir $out/share/applications/kde4
-
-    for f in $out/share/applications/* ; do
-      substituteInPlace $f \
-        --replace Qt4                   Qt5
-    done
-  '';
-
-  meta = {
-    description = "Qt frontend for nmap";
-    mainProgram = "nmapsi4";
-    changelog = "https://github.com/nmapsi4/nmapsi4/releases/tag/${src.rev}";
-    license = lib.licenses.gpl2Plus;
-    maintainers = with lib.maintainers; [ peterhoeg ];
-    inherit (src.meta) homepage;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 344b74f477e0..756b05f7105c 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -1505,6 +1505,7 @@ mapAliases {
   nixosTest = throw "'nixosTest' has been renamed to/replaced by 'testers.nixosTest'"; # Converted to throw 2025-10-27
   nixStable = throw "'nixStable' has been renamed to/replaced by 'nixVersions.stable'"; # Converted to throw 2025-10-27
   nm-tray = throw "'nm-tray' has been removed, as it only works with Plasma 5"; # Added 2025-08-30
+  nmapsi4 = throw "'nmapsi4' has been removed as it depended on qt5 webengine, which is EOL"; # Added 2026-04-25
   node2nix = throw "node2nix has been removed because it was only used to maintain the now-removed nodePackages set. Use the newer builders in nixpkgs instead, such as buildNpmPackage"; # Added 2026-03-03
   nodePackages = throw "nodePackages has been removed. Many packages are now available at the top level (e.g. `pkgs.package-name`). Check on https://search.nixos.org to see if the package is still available."; # Added 2026-03-03
   nodePackages_latest = throw "nodePackages has been removed. Many packages are now available at the top level (e.g. `pkgs.package-name`). Check on https://search.nixos.org to see if the package is still available."; # Added 2026-03-03