diff --git a/nix/mkAtmApp.nix b/nix/mkAtmApp.nix
index 630faf3..68a4c37 100644
--- a/nix/mkAtmApp.nix
+++ b/nix/mkAtmApp.nix
@@ -38,7 +38,7 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
     inherit (finalAttrs) pname version src pnpmWorkspaces;
     inherit pnpm;
     fetcherVersion = 3;
-    hash = "sha256-03ANBQ7bHJwsqlX2ScA1+1LFuO8njiuU7O4VGOb6cMM=";
+    hash = "sha256-XqpQpFL3PqnFltb4ujAmmnnV0LOqTHKV/bo3riFu9pY=";
   };
 
   nativeBuildInputs = [
@@ -57,6 +57,11 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
     pkgs.sqlite.dev # better-sqlite3
     pkgs.libudev-zero # serialport
     pkgs.stdenv.cc.cc.lib # libstdc++
+    # @pokusew/pcsclite (nfc-pcsc): the `lib` output carries libpcsclite.so so
+    # autoPatchelf wires it into the .node RPATH at runtime. Compile/link paths
+    # are injected via CPATH/LIBRARY_PATH in buildPhase (its binding.gyp
+    # hardcodes Debian /usr paths instead of using pkg-config).
+    pkgs.pcsclite.lib
   ];
 
   env = {
@@ -83,6 +88,19 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
       --arch=x64
     popd
 
+    # @pokusew/pcsclite (nfc-pcsc's native addon) — also V8 C++ API, so it too
+    # must be rebuilt against Electron's headers. Its binding.gyp hardcodes
+    # /usr/include/PCSC + /usr/lib, so point the compiler/linker at nixpkgs'
+    # pcsclite explicitly (winscard.h lives under include/PCSC).
+    echo "=== Rebuilding @pokusew/pcsclite against Electron ${electron.version} headers ==="
+    pushd node_modules/.pnpm/@pokusew+pcsclite@*/node_modules/@pokusew/pcsclite
+    CPATH="${pkgs.pcsclite.dev}/include/PCSC''${CPATH:+:$CPATH}" \
+    LIBRARY_PATH="${pkgs.pcsclite.lib}/lib''${LIBRARY_PATH:+:$LIBRARY_PATH}" \
+    HOME=$TMPDIR ${nodejs}/bin/npx --yes node-gyp rebuild \
+      --nodedir="$electron_nodedir" \
+      --arch=x64
+    popd
+
     # Build the Electron app (turbo builds all workspace deps + app)
     pnpm --filter="@bitSpire/machine..." build
 
@@ -95,7 +113,7 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
   installPhase = ''
     runHook preInstall
 
-    mkdir -p $out/node_modules/{@lamassu,@serialport}
+    mkdir -p $out/node_modules/{@lamassu,@serialport,@pokusew}
 
     # Helper: find a package dir inside the pnpm virtual store.
     # pnpm store dirs look like: node_modules/.pnpm/<name>@<ver>[_<peer-suffix>]/node_modules/<name>
@@ -132,6 +150,12 @@ pkgs.stdenv.mkDerivation (finalAttrs: {
     copy_pnpm_pkg bindings $out/node_modules/bindings
     copy_pnpm_pkg file-uri-to-path $out/node_modules/file-uri-to-path
 
+    # nfc-pcsc + @pokusew/pcsclite (Bolt Card reader). The compiled
+    # pcsclite.node (from the rebuild above) rides along in the package dir and
+    # loads via `bindings` (already copied). autoPatchelf wires libpcsclite.
+    copy_pnpm_pkg nfc-pcsc $out/node_modules/nfc-pcsc
+    copy_pnpm_pkg @pokusew/pcsclite $out/node_modules/@pokusew/pcsclite
+
     # @bitSpire/hal (workspace package, dynamically imported for hardware access)
     mkdir -p $out/node_modules/@bitSpire/hal/dist
     cp -rL packages/hal/dist/* $out/node_modules/@bitSpire/hal/dist/