diff --git a/pkgs/by-name/ug/ugarit-manifest-maker/eggs.nix b/pkgs/by-name/ug/ugarit-manifest-maker/eggs.nix
deleted file mode 100644
index eaf2b9617cce..000000000000
--- a/pkgs/by-name/ug/ugarit-manifest-maker/eggs.nix
+++ /dev/null
@@ -1,430 +0,0 @@
-{ eggDerivation, fetchegg }:
-rec {
-  blob-utils = eggDerivation {
-    name = "blob-utils-1.0.3";
-
-    src = fetchegg {
-      name = "blob-utils";
-      version = "1.0.3";
-      sha256 = "17vdn02fnxnjx5ixgqimln93lqvzyq4y9w02fw7xnbdcjzqm0xml";
-    };
-
-    buildInputs = [
-      setup-helper
-      string-utils
-    ];
-  };
-
-  check-errors = eggDerivation {
-    name = "check-errors-1.13.0";
-
-    src = fetchegg {
-      name = "check-errors";
-      version = "1.13.0";
-      sha256 = "12a0sn82n98jybh72zb39fdddmr5k4785xglxb16750fhy8rmjwi";
-    };
-
-    buildInputs = [
-      setup-helper
-    ];
-  };
-
-  crypto-tools = eggDerivation {
-    name = "crypto-tools-1.3";
-
-    src = fetchegg {
-      name = "crypto-tools";
-      version = "1.3";
-      sha256 = "0442wly63zis19vh8xc9nhxgp9sabaccxylpzmchd5f1d48iag65";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  fnmatch = eggDerivation {
-    name = "fnmatch-1.0.1";
-
-    src = fetchegg {
-      name = "fnmatch";
-      version = "1.0.1";
-      sha256 = "1m3jmyhkyqmjr7v628g6w5n3cqihcfnryrxn91k4597q7vjhikqr";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  foreigners = eggDerivation {
-    name = "foreigners-1.4.1";
-
-    src = fetchegg {
-      name = "foreigners";
-      version = "1.4.1";
-      sha256 = "07nvyadhkd52q0kkvch1a5d7ivpmrhmyg295s4mxb1nw4wz46gfz";
-    };
-
-    buildInputs = [
-      matchable
-    ];
-  };
-
-  lookup-table = eggDerivation {
-    name = "lookup-table-1.13.5";
-
-    src = fetchegg {
-      name = "lookup-table";
-      version = "1.13.5";
-      sha256 = "1nzly6rhynawlvzlyilk8z8cxz57cf9n5iv20glkhh28pz2izmrb";
-    };
-
-    buildInputs = [
-      setup-helper
-      check-errors
-      miscmacros
-      record-variants
-      synch
-    ];
-  };
-
-  lru-cache = eggDerivation {
-    name = "lru-cache-0.5.3";
-
-    src = fetchegg {
-      name = "lru-cache";
-      version = "0.5.3";
-      sha256 = "0z6g3106c4j21v968hfzy9nnbfq2d83y0nyd20aifpq4g55c0d40";
-    };
-
-    buildInputs = [
-      record-variants
-    ];
-  };
-
-  matchable = eggDerivation {
-    name = "matchable-3.3";
-
-    src = fetchegg {
-      name = "matchable";
-      version = "3.3";
-      sha256 = "07y3lpzgm4djiwi9y2adc796f9kwkmdr28fkfkw65syahdax8990";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  message-digest = eggDerivation {
-    name = "message-digest-3.1.0";
-
-    src = fetchegg {
-      name = "message-digest";
-      version = "3.1.0";
-      sha256 = "1w6bax19dwgih78vcimiws0rja7qsd8hmbm6qqg2hf9cw3vab21s";
-    };
-
-    buildInputs = [
-      setup-helper
-      miscmacros
-      check-errors
-      variable-item
-      blob-utils
-      string-utils
-    ];
-  };
-
-  miscmacros = eggDerivation {
-    name = "miscmacros-2.96";
-
-    src = fetchegg {
-      name = "miscmacros";
-      version = "2.96";
-      sha256 = "1ajdgjrni10i2hmhcp4rawnxajjxry3kmq1krdmah4sf0kjrgajc";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  numbers = eggDerivation {
-    name = "numbers-4.4";
-
-    src = fetchegg {
-      name = "numbers";
-      version = "4.4";
-      sha256 = "0bg5zs6jcr9arj4a7r2xqxf2n17bx93640jaivgchbdj1gixranm";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  parley = eggDerivation {
-    name = "parley-0.9.2";
-
-    src = fetchegg {
-      name = "parley";
-      version = "0.9.2";
-      sha256 = "1vsbx4dk1240gzq02slzmavd1jrq04qj7ssnvg15h8xh81xwhbbz";
-    };
-
-    buildInputs = [
-      stty
-      srfi-71
-      miscmacros
-    ];
-  };
-
-  pathname-expand = eggDerivation {
-    name = "pathname-expand-0.1";
-
-    src = fetchegg {
-      name = "pathname-expand";
-      version = "0.1";
-      sha256 = "14llya7l04z49xpi3iylk8aglrw968vy304ymavhhqlyzmzwkx3g";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  posix-extras = eggDerivation {
-    name = "posix-extras-0.1.6";
-
-    src = fetchegg {
-      name = "posix-extras";
-      version = "0.1.6";
-      sha256 = "0gnmhn2l0161ham7f8i0lx1ay94ap8l8l7ga4nw9qs86lk024abi";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  record-variants = eggDerivation {
-    name = "record-variants-0.5.1";
-
-    src = fetchegg {
-      name = "record-variants";
-      version = "0.5.1";
-      sha256 = "15wgysxkm8m4hx9nhhw9akchzipdnqc7yj3qd3zn0z7sxg4sld1h";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  regex = eggDerivation {
-    name = "regex-1.0";
-
-    src = fetchegg {
-      name = "regex";
-      version = "1.0";
-      sha256 = "1z9bh7xvab6h5cdlsz8jk02pv5py1i6ryqarbcs3wdgkkjgmmkif";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  setup-helper = eggDerivation {
-    name = "setup-helper-1.5.5";
-
-    src = fetchegg {
-      name = "setup-helper";
-      version = "1.5.5";
-      sha256 = "1lpplp8f2wyc486dd98gs4wl1kkhh1cs6vdqkxrdk7f92ikmwbx3";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  sql-de-lite = eggDerivation {
-    name = "sql-de-lite-0.6.6";
-
-    src = fetchegg {
-      name = "sql-de-lite";
-      version = "0.6.6";
-      sha256 = "1mh3hpsibq2gxcpjaycqa4ckznj268xpfzsa6pn0i6iac6my3qra";
-    };
-
-    buildInputs = [
-      lru-cache
-      foreigners
-    ];
-  };
-
-  srfi-37 = eggDerivation {
-    name = "srfi-37-1.3.1";
-
-    src = fetchegg {
-      name = "srfi-37";
-      version = "1.3.1";
-      sha256 = "1a2zdkdzrv15fw9dfdy8067fsgh4kr8ppffm8mc3cmlczrrd58cb";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  srfi-71 = eggDerivation {
-    name = "srfi-71-1.1";
-
-    src = fetchegg {
-      name = "srfi-71";
-      version = "1.1";
-      sha256 = "01mlaxw2lfczykmx69xki2s0f4ywlg794rl4kz07plvzn0s3fbqq";
-    };
-
-    buildInputs = [
-
-    ];
-  };
-
-  ssql = eggDerivation {
-    name = "ssql-0.2.4";
-
-    src = fetchegg {
-      name = "ssql";
-      version = "0.2.4";
-      sha256 = "0qhnghhx1wrvav4s7l780mspwlh8s6kzq4bl0cslwp1km90fx9bk";
-    };
-
-    buildInputs = [
-      matchable
-    ];
-  };
-
-  string-utils = eggDerivation {
-    name = "string-utils-1.2.4";
-
-    src = fetchegg {
-      name = "string-utils";
-      version = "1.2.4";
-      sha256 = "07alvghg0dahilrm4jg44bndl0x69sv1zbna9l20cbdvi35i0jp1";
-    };
-
-    buildInputs = [
-      setup-helper
-      miscmacros
-      lookup-table
-      check-errors
-    ];
-  };
-
-  stty = eggDerivation {
-    name = "stty-0.2.6";
-
-    src = fetchegg {
-      name = "stty";
-      version = "0.2.6";
-      sha256 = "09jmjpdsd3yg6d0f0imcihmn49i28x09lgl60i2dllffs25k22s4";
-    };
-
-    buildInputs = [
-      setup-helper
-      foreigners
-    ];
-  };
-
-  synch = eggDerivation {
-    name = "synch-2.1.2";
-
-    src = fetchegg {
-      name = "synch";
-      version = "2.1.2";
-      sha256 = "1m9mnbq0m5jsxmd1a3rqpwpxj0l1b7vn1fknvxycc047pmlcyl00";
-    };
-
-    buildInputs = [
-      setup-helper
-      check-errors
-    ];
-  };
-
-  tiger-hash = eggDerivation {
-    name = "tiger-hash-3.1.0";
-
-    src = fetchegg {
-      name = "tiger-hash";
-      version = "3.1.0";
-      sha256 = "0j9dsbjp9cw0y4w4srg0qwgh53jw2v3mx4y4h040ds0fkxlzzknx";
-    };
-
-    buildInputs = [
-      message-digest
-    ];
-  };
-
-  ugarit = eggDerivation {
-    name = "ugarit-2.0";
-
-    src = fetchegg {
-      name = "ugarit";
-      version = "2.0";
-      sha256 = "1l5zkr6b8l5dw9p5mimbva0ncqw1sbvp3d4cywm1hqx2m03a0f1n";
-    };
-
-    buildInputs = [
-      miscmacros
-      sql-de-lite
-      crypto-tools
-      srfi-37
-      stty
-      matchable
-      regex
-      tiger-hash
-      message-digest
-      posix-extras
-      parley
-      ssql
-      pathname-expand
-    ];
-  };
-
-  ugarit-manifest-maker = eggDerivation {
-    name = "ugarit-manifest-maker-0.1";
-
-    src = fetchegg {
-      name = "ugarit-manifest-maker";
-      version = "0.1";
-      sha256 = "1jv8lhn4s5a3qphqd3zfwl1py0m5cmqj1h55ys0935m5f422547q";
-    };
-
-    buildInputs = [
-      matchable
-      srfi-37
-      fnmatch
-      miscmacros
-      ugarit
-      numbers
-    ];
-  };
-
-  variable-item = eggDerivation {
-    name = "variable-item-1.3.1";
-
-    src = fetchegg {
-      name = "variable-item";
-      version = "1.3.1";
-      sha256 = "19b3mhb8kr892sz9yyzq79l0vv28dgilw9cf415kj6aq16yp4d5n";
-    };
-
-    buildInputs = [
-      setup-helper
-      check-errors
-    ];
-  };
-}
diff --git a/pkgs/by-name/ug/ugarit-manifest-maker/package.nix b/pkgs/by-name/ug/ugarit-manifest-maker/package.nix
deleted file mode 100644
index 2811980c095f..000000000000
--- a/pkgs/by-name/ug/ugarit-manifest-maker/package.nix
+++ /dev/null
@@ -1,37 +0,0 @@
-{
-  lib,
-  chickenPackages_4,
-}:
-
-let
-  eggs = import ./eggs.nix { inherit (chickenPackages_4) eggDerivation fetchegg; };
-in
-
-chickenPackages_4.eggDerivation rec {
-  pname = "ugarit-manifest-maker";
-  version = "0.1";
-  name = "${pname}-${version}";
-
-  src = chickenPackages_4.fetchegg {
-    inherit version;
-    name = pname;
-    sha256 = "1jv8lhn4s5a3qphqd3zfwl1py0m5cmqj1h55ys0935m5f422547q";
-  };
-
-  buildInputs = with eggs; [
-    matchable
-    srfi-37
-    fnmatch
-    miscmacros
-    ugarit
-    numbers
-  ];
-
-  meta = {
-    homepage = "https://www.kitten-technologies.co.uk/project/ugarit-manifest-maker/";
-    description = "Tool for generating import manifests for Ugarit";
-    mainProgram = "ugarit-manifest-maker";
-    license = lib.licenses.bsd3;
-    platforms = lib.platforms.unix;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 7f8314b8a213..c2ad87e8d135 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -2116,6 +2116,7 @@ mapAliases {
   ubuntu_font_family = throw "'ubuntu_font_family' has been renamed to/replaced by 'ubuntu-classic'"; # Converted to throw 2025-10-27
   udisks2 = udisks; # Added 2025-10-30
   ue4demos = throw "'ue4demos' has been removed because it is unmaintained"; # Added 2026-02-07
+  ugarit-manifest-maker = throw "'ugarit-manifest-maker' has been removed because it is unmaintained"; # Added 2026-05-07
   unicap = throw "'unicap' has been removed because it is unmaintained"; # Added 2025-05-17
   unifi-poller = throw "'unifi-poller' has been renamed to/replaced by 'unpoller'"; # Converted to throw 2025-10-27
   unixODBC = warnAlias "'unixODBC' has been renamed to 'unixodbc'" unixodbc; # Added 2026-02-12