add nix flake

flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1756125398,
+        "narHash": "sha256-XexyKZpf46cMiO5Vbj+dWSAXOnr285GHsMch8FBoHbc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "3b9f00d7a7bf68acd4c4abb9d43695afb04e03a5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,72 @@
+{
+  description = "mu and mu4e email package for emacs";
+
+  inputs = { nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; };
+
+  outputs = { self, nixpkgs }: {
+
+    packages.x86_64-linux.default =
+      with import nixpkgs { system = "x86_64-linux"; };
+      stdenv.mkDerivation {
+        name = "mu4e";
+        src = self;
+
+        nativeBuildInputs = [
+          pkg-config
+          meson
+          ninja
+          texinfo
+          #installShellFiles
+          emacs
+          python3
+          #makeWrapper # need?
+          cmake
+          cld2
+        ];
+
+        buildInputs = [ glib gmime3 xapian ];
+
+        mesonFlags = [
+          # "--debug"
+          "-Dguile=disabled"
+          "-Dreadline=disabled"
+          "-Demacs=${emacs}/bin/emacs"
+        ];
+
+        # 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";
+        };
+      };
+  };
+}