diff --git a/flake.nix b/flake.nix
index 12f76acc..5d34f894 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,72 +1,107 @@
 {
-  description = "mu and mu4e email package for emacs";
+  description = "project with vendored meson subprojects";
 
   inputs = { nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; };
 
-  outputs = { self, nixpkgs }: {
+  outputs = { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
 
-    packages.x86_64-linux.default =
-      with import nixpkgs { system = "x86_64-linux"; };
-      stdenv.mkDerivation {
-        name = "mu4e";
+      # One entry per .wrap file. `hash`/`patchHash` are the
+      # source_hash/patch_hash values from the .wrap, as-is (hex sha256 --
+      # Nix's `sha256 =` attr accepts hex directly).
+      subprojects = {
+        cli11 = {
+          dir = "CLI11-2.7.2";
+          src = pkgs.fetchurl {
+            url = "https://github.com/CLIUtils/CLI11/archive/refs/tags/v2.7.2.tar.gz";
+            sha256 = "46eef3101da70852ec7af026e09d485ccee81813331c8c6052d39344443b83da";
+          };
+        };
+        fmt = {
+          dir = "fmt-12.0.0";
+          src = pkgs.fetchurl {
+            url = "https://github.com/fmtlib/fmt/archive/12.0.0.tar.gz";
+            sha256 = "aa3e8fbb6a0066c03454434add1f1fc23299e85758ceec0d7d2d974431481e40";
+          };
+          patch = pkgs.fetchurl {
+            url = "https://wrapdb.mesonbuild.com/v2/fmt_12.0.0-1/get_patch";
+            sha256 = "307f288ebf3850abf2f0c50ac1fb07de97df9538d39146d802f3c0d6cada8998";
+          };
+        };
+        tabulate = {
+          dir = "tabulate-1.5";
+          src = pkgs.fetchurl {
+            url = "https://github.com/p-ranav/tabulate/archive/refs/tags/v1.5.tar.gz";
+            sha256 = "16b289f46306283544bb593f4601e80d6ea51248fde52e910cc569ef08eba3fb";
+          };
+          patch = pkgs.fetchurl {
+            url = "https://wrapdb.mesonbuild.com/v2/tabulate_1.5-1/get_patch";
+            sha256 = "3c7c5f90b320d9096bc4335ff2c1f0c5b8e0c869d25c92eb4fce519609fb22f7";
+          };
+        };
+        tl-expected = {
+          dir = "expected-1.3.1";
+          src = pkgs.fetchurl {
+            url = "https://github.com/TartanLlama/expected/archive/v1.3.1.tar.gz";
+            sha256 = "9a04f4f472fbb5c30bf60402f1ca626c4a76987f867978d0b8a35d7ab3fb8fe7";
+          };
+          patch = pkgs.fetchurl {
+            url = "https://wrapdb.mesonbuild.com/v2/tl-expected_1.3.1-1/get_patch";
+            sha256 = "91cfeae04ba6ea05792e68a37781236a7045b9e2e4e0c8b7093fd8c3e43b0bad";
+          };
+        };
+        tl-optional = {
+          dir = "optional-1.1.0";
+          src = pkgs.fetchurl {
+            url = "https://github.com/TartanLlama/optional/archive/refs/tags/v1.1.0.tar.gz";
+            sha256 = "88ece79f3de5ccaec4191951a222f95cc80c4381dafd3163bdb1ff87cedf3118";
+          };
+          patch = pkgs.fetchurl {
+            url = "https://wrapdb.mesonbuild.com/v2/tl-optional_1.1.0-1/get_patch";
+            sha256 = "b64e2a89e44279074d845de4fce85151a27ce65298849e87f6069a77967d4eb7";
+          };
+        };
+      };
+
+      # Build the shell commands that stage each subproject's source (and,
+      # if present, unzip its wrapdb "patch" overlay on top) into
+      # subprojects/<dir>, exactly like `meson subprojects download` would.
+      stageSubprojects = pkgs.lib.concatStrings (pkgs.lib.mapAttrsToList
+        (name: sp: ''
+          mkdir -p "subprojects/${sp.dir}"
+          tar xf ${sp.src} -C subprojects --strip-components=0
+          ${pkgs.lib.optionalString (sp ? patch) ''
+            unzip -o -q ${sp.patch} -d "subprojects/${sp.dir}"
+          ''}
+        '') subprojects);
+    in {
+      packages.${system}.default = pkgs.stdenv.mkDerivation {
+        name = "myproject";
         src = self;
 
-        nativeBuildInputs = [
+        nativeBuildInputs = with pkgs; [
           pkg-config
           meson
           ninja
-          texinfo
-          #installShellFiles
-          emacs
+          unzip
           python3
-          #makeWrapper # need?
-          cmake
-          cld2
         ];
 
-        buildInputs = [ glib gmime3 xapian ];
+        buildInputs = [ ];
+
+        postPatch = stageSubprojects + ''
+          # Scripts vendored via fetchurl (e.g. CLI11's scripts/ExtractVersion.py)
+          # keep their original #!/usr/bin/env python3 shebang, which doesn't
+          # resolve inside the Nix build sandbox. patchShebangs rewrites them
+          # to point at the python3 in nativeBuildInputs.
+          patchShebangs subprojects
+        '';
 
         mesonFlags = [
-          # "--debug"
-          "-Dscm=disabled"
-          "-Dreadline=disabled"
-          "-Demacs=${emacs}/bin/emacs"
+          "--wrap-mode=nodownload"
         ];
-
-        # preConfigure = ''
-        #   echo "=== DEBUG: Environment before meson configure ==="
-        #   echo "PWD: $(pwd)"
-        #   echo "Python version:"
-        #   python3 --version || echo "python3 not available"
-        #   echo "Python path:"
-        #   #which python3 || echo "python3 not in PATH"
-        #   echo "PATH: $PATH"
-        #   echo "Meson version:"
-        #   meson --version
-        #   echo "Available files in current directory:"
-        #   ls -la
-        #   echo "Checking for Python scripts:"
-        #   find . -name "*.py" -type f | head -10
-        #   echo "=============================================="
-        # '';
-
-        meta = with lib; {
-          description = "Email indexer and Emacs client (mu4e)";
-          longDescription = ''
-            mu is a tool for dealing with email messages stored in the
-            Maildir-format. mu's purpose in life is to help you to quickly find the
-            messages you need; in addition, it allows you to view messages, extract
-            attachments, create new maildirs, and so on.
-
-            mu4e is an Emacs-based e-mail client that uses mu as its back-end.
-          '';
-          license = licenses.gpl3Plus;
-          homepage = "https://www.djcbsoftware.nl/code/mu/";
-          changelog = "https://github.com/djcb/mu/blob/v${version}/NEWS.org";
-          maintainers = with maintainers; [ antono chvp peterhoeg ];
-          platforms = platforms.unix;
-          mainProgram = "mu";
-        };
       };
-  };
+    };
 }