diff --git a/debian/lmcp/build-deb.sh b/debian/lmcp/build-deb.sh
index bf214023dd..7b0a4fc681 100755
--- a/debian/lmcp/build-deb.sh
+++ b/debian/lmcp/build-deb.sh
@@ -7,10 +7,10 @@
 # package (Architecture: all, depends on lua + lua-socket).
 set -euo pipefail
 
-PKGVER=1.2.2
-UPSTREAM_TAG=v1.2.2
+PKGVER=1.2.3
+UPSTREAM_TAG=v1.2.3
 PKGREL=1
-LMCP_TARBALL_SHA256=e8f536eae92cf88bed5f479c59ba4fefeb29a4249ff3622a1d8d28ee99b8df3b
+LMCP_TARBALL_SHA256=5def217c307eacaff2812d3b8116e556a6a117168b0e8972c64eddae72728f0c
 HERE=$(dirname "$(readlink -f "$0")")
 
 # Reproducible build: pin all file mtimes + ar member timestamps to a fixed
@@ -28,15 +28,13 @@ echo "$LMCP_TARBALL_SHA256  lmcp.tar.gz" | sha256sum -c
 tar xzf lmcp.tar.gz
 
 ROOT="$work/pkgroot"
-mkdir -p "$ROOT/DEBIAN" \
-         "$ROOT/usr/share/lua/5.4" \
-         "$ROOT/usr/bin" \
-         "$ROOT/usr/share/doc/lmcp"
+mkdir -p "$ROOT/DEBIAN"          "$ROOT/usr/share/lua/5.4"          "$ROOT/usr/bin"          "$ROOT/usr/share/doc/lmcp"
 
 cp lmcp/lmcp.lua   "$ROOT/usr/share/lua/5.4/"
 cp lmcp/json.lua   "$ROOT/usr/share/lua/5.4/"
 cp lmcp/server.lua "$ROOT/usr/share/lua/5.4/"
 cp lmcp/hub.lua    "$ROOT/usr/share/lua/5.4/"
+cp lmcp/tools.d/nash.lua "$ROOT/usr/share/lua/5.4/nash.lua"
 mkdir -p "$ROOT/usr/share/doc/lmcp/examples"
 cp lmcp/examples/lmcp-hub.service          "$ROOT/usr/share/doc/lmcp/examples/"
     cp lmcp/examples/lmcp.service              "$ROOT/usr/share/doc/lmcp/examples/"