diff --git a/linglong.yaml b/linglong.yaml
new file mode 100644
index 0000000..fdd1f93
--- /dev/null
+++ b/linglong.yaml
@@ -0,0 +1,741 @@
+version: '1'
+
+package:
+  id: io.github.babitmf.bmf
+  kind: app
+  name: "BMF"
+  version: "0.2.0.0"
+  description: "Babit Multimedia Framework (BMF) - multimedia/video processing framework."
+
+base: org.deepin.base/25.2.1
+
+buildext:
+  apt:
+    build_depends:
+      - ca-certificates
+      - git
+      - pkg-config
+      - cmake
+      - make
+      - gcc
+      - g++
+      - binutils-dev
+      - libssl-dev
+      - ffmpeg
+      - libavcodec-dev
+      - libavdevice-dev
+      - libavfilter-dev
+      - libavformat-dev
+      - libavutil-dev
+      - libpostproc-dev
+      - libswresample-dev
+      - libswscale-dev
+      # Enable CUDA build (FindCUDAToolkit)
+      - nvidia-cuda-toolkit
+
+    depends:
+      - libavformat60
+      - libavcodec60
+      - libavutil58
+      - libavfilter9
+      - libavdevice60
+      - libswscale7
+      - libswresample4
+      - libpostproc57
+      - libblas3
+      - liblapack3
+      - libgfortran5
+      # CUDA runtime: bundle libcudart into the app to avoid pulling in driver/dkms/sudo
+      # via apt dependency chain during runtime check.
+
+command:
+  - "/opt/apps/io.github.babitmf.bmf/files/bin/bmf"
+
+build: |
+  set -eux
+  # cp -a /project/bmf /project/linglong/sources/
+  cd /project/linglong/sources/bmf
+
+  # Fix build with FFmpeg 6+: av_mallocz_array was removed from libavutil.
+  # Use an idempotent in-place edit (avoid patch prompts / malformed diffs).
+  FF_HELPER=bmf/hmp/include/hmp/ffmpeg/ff_helper.h
+  if ! grep -q "FFmpeg 6+ removed av_mallocz_array" "$FF_HELPER"; then
+    awk '
+      { print }
+      /#include <libavcodec\/avcodec\.h>/ {
+        print "#include <libavutil/mem.h>"
+        print "#include <libavutil/version.h>"
+        print ""
+        print "#if LIBAVUTIL_VERSION_MAJOR >= 58"
+        print "// FFmpeg 6+ removed av_mallocz_array; use av_calloc as replacement."
+        print "static inline void *av_mallocz_array(size_t nmemb, size_t size) {"
+        print "    return av_calloc(nmemb, size);"
+        print "}"
+        print "#endif"
+      }
+    ' "$FF_HELPER" > /tmp/ff_helper.h
+    mv /tmp/ff_helper.h "$FF_HELPER"
+  fi
+
+  # BMF 顶层 CMakeLists.txt 需要 BMF_BUILD_VERSION，且默认会启用 CUDA/Python，
+  # 在玲珑基础环境中通常更稳妥的做法是先关掉 Python/CUDA/Test。
+  cmake -S . -B build \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX="$PREFIX" \
+    -DCMAKE_INSTALL_RPATH='\$ORIGIN/../lib' \
+    -DCMAKE_BUILD_WITH_INSTALL_RPATH=ON \
+    -DBMF_BUILD_VERSION="0.2.0.0" \
+    -DBMF_BUILD_COMMIT="0" \
+    -DBMF_ENABLE_TEST=OFF \
+    -DBMF_ENABLE_PYTHON=OFF \
+    -DBMF_ENABLE_CUDA=ON \
+    -DBMF_ENABLE_TORCH=OFF \
+    -DBMF_ENABLE_BREAKPAD=OFF \
+    -DBMF_ENABLE_JNI=OFF
+
+  cmake --build build -j"$(nproc)"
+  cmake --install build
+
+  # Upstream hmp library isn't installed by default; package it explicitly.
+  install -d "$PREFIX/lib"
+  if [ -d build/output/bmf/lib ]; then
+    cp -a build/output/bmf/lib/libhmp.so* "$PREFIX/lib/" || true
+  fi
+
+  # Provide a minimal telemetry uploader library to satisfy optional dlopen
+  # in bmf_sdk::BMFStat (avoids runtime "libbmf_data_reporter.so missing" logs).
+  # This stub does not send anything; it simply implements the expected symbols.
+  cat > /tmp/bmf_data_reporter_stub.cpp <<'CPP'
+  #include <bmf/sdk/bmf_kafka_reporter_interface.h>
+  #include <cstdint>
+  #include <string>
+
+  class NullKafkaReporter final : public BMFKafkaReporterI {
+  public:
+      bool produce(const std::string&) override { return true; }
+      void flush() override {}
+      int64_t get_num_produced() const override { return 0; }
+  };
+
+  extern "C" {
+  BMFKafkaReporterI* create_bmf_kafka_reporter_default_online() {
+      return new NullKafkaReporter();
+  }
+  BMFKafkaReporterI* create_bmf_kafka_reporter_default_boe() {
+      return new NullKafkaReporter();
+  }
+  void destroy_kafka_reporter(BMFKafkaReporterI* reporter) {
+      delete reporter;
+  }
+  }
+  CPP
+  g++ -shared -fPIC -O2 -std=c++17 \
+    -I bmf/sdk/cpp_sdk/include \
+    -Wl,-soname,libbmf_data_reporter.so \
+    -o "$PREFIX/lib/libbmf_data_reporter.so" \
+    /tmp/bmf_data_reporter_stub.cpp
+
+  # Some FFmpeg filter dependencies (e.g. libplacebo) may pull in BLAS/LAPACK
+  # which are not guaranteed to exist in the runtime container.
+  # Bundle the minimal set of numerical runtime libs into the package.
+  bundle_soname() {
+    soname="$1"
+    path="$(ldconfig -p 2>/dev/null | awk -v s="$soname" '$1==s {print $NF; exit}' || true)"
+    if [ -z "$path" ]; then
+      path="$(find /usr/lib -maxdepth 5 -name "$soname" 2>/dev/null | head -n 1 || true)"
+    fi
+    if [ -n "$path" ] && [ -e "$path" ]; then
+      real="$(readlink -f "$path" 2>/dev/null || printf '%s' "$path")"
+      cp -a "$real" "$PREFIX/lib/" || true
+      if [ "$(basename "$real")" != "$soname" ]; then
+        ln -sf "$(basename "$real")" "$PREFIX/lib/$soname" || true
+      fi
+    fi
+  }
+
+  # Linglong runtime may not provide FFmpeg runtime libs even if we declare apt depends.
+  # Bundle the minimal FFmpeg shared libs required by builtin ffmpeg modules.
+  bundle_soname libavformat.so.60
+  bundle_soname libavcodec.so.60
+  bundle_soname libavutil.so.58
+  bundle_soname libavfilter.so.9
+  bundle_soname libavdevice.so.60
+  bundle_soname libswscale.so.7
+  bundle_soname libswresample.so.4
+  bundle_soname libpostproc.so.57
+
+  # CUDA runtime (do NOT rely on apt installing libcudart12 into the app filesystem).
+  # Host driver-side libcuda is provided by Linglong's NVIDIA driver integration.
+  bundle_soname libcudart.so.12
+
+  bundle_soname libblas.so.3
+  bundle_soname liblapack.so.3
+  bundle_soname libgfortran.so.5
+  bundle_soname libquadmath.so.0
+
+  # ModuleManager locates BUILTIN_CONFIG.json by searching:
+  #   1) directory of libbmf_module_sdk.so (usually $PREFIX/lib)
+  #   2) its parent (usually $PREFIX)
+  #   3) current working directory
+  # The chosen directory becomes builtin_root, and builtin modules are then resolved under:
+  #   <builtin_root>/lib/libbuiltin_modules.so
+  # So we must place BUILTIN_CONFIG.json under $PREFIX (not $PREFIX/lib), otherwise it becomes
+  # <builtin_root>=$PREFIX/lib and resolves to a wrong path: $PREFIX/lib/lib/libbuiltin_modules.so.
+  if [ -f bmf/c_modules/meta/BUILTIN_CONFIG.json ]; then
+    install -m 0644 bmf/c_modules/meta/BUILTIN_CONFIG.json "$PREFIX/BUILTIN_CONFIG.json"
+  elif [ -f build/output/bmf/BUILTIN_CONFIG.json ]; then
+    install -m 0644 build/output/bmf/BUILTIN_CONFIG.json "$PREFIX/BUILTIN_CONFIG.json"
+  fi
+  rm -f "$PREFIX/lib/BUILTIN_CONFIG.json" || true
+
+  # 可选：给用户一个导出环境的小工具（运行后打印 export 语句）
+  install -d "$PREFIX/bin"
+  cat > "$PREFIX/bin/bmf_env" <<'EOF'
+  #!/bin/sh
+  ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+  echo "export BMF_ROOT=${ROOT}"
+  echo "export LD_LIBRARY_PATH=${ROOT}/lib:\$LD_LIBRARY_PATH"
+  echo "export LIBRARY_PATH=${ROOT}/lib:\$LIBRARY_PATH"
+  echo "export CPATH=${ROOT}/include:\$CPATH"
+  echo "export PKG_CONFIG_PATH=${ROOT}/lib/pkgconfig:\$PKG_CONFIG_PATH"
+  EOF
+  chmod +x "$PREFIX/bin/bmf_env"
+
+  # Provide a friendly entrypoint for Linglong: ll-builder/ll-cli run (no args) should not fail.
+  cat > "$PREFIX/bin/bmf" <<'EOF'
+  #!/bin/sh
+  set -eu
+
+  BIN_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+  usage() {
+    printf '%s\n' \
+      'BMF (Linglong package)' \
+      '' \
+      'Usage:' \
+      '  bmf run <graph_config.json>' \
+      '  bmf demo-transcode [--input in.mp4] [--output out.mp4] [options]' \
+      '  bmf demo-transcode-cuda [--input in.mp4] [--output out.mp4] [options]' \
+      '  bmf config <init|reset|show|show-cuda|path|path-cuda>' \
+      '  bmf module_manager [args...]' \
+      '  bmf run_bmf_graph <graph_config.json>' \
+      '' \
+      'demo-transcode options:' \
+      '  --scale WxH        (e.g. 1280x720; updates scale + encoder width/height)' \
+      '  --crf N            (e.g. 18..28)' \
+      '  --preset NAME      (e.g. veryfast, fast, medium)' \
+      '  --ab RATE          (audio bitrate, e.g. 128k, 192k)' \
+      '  --vflip/--no-vflip (toggle vflip node in default graph)' \
+      '  --hflip/--no-hflip (toggle hflip node in default graph)' \
+      '' \
+      'demo-transcode-cuda notes:' \
+      '  - Tries hwaccel decode (cuda) + NVENC encode (h264_nvenc) first.' \
+      '  - If CUDA/NVENC is unavailable, it auto-falls back to demo-transcode.' \
+      '  - For NVENC, preset values are typically p1..p7 (differs from x264 presets).' \
+      '' \
+      'Default paths (editable default config):' \
+      '  config:      $HOME/bmf/bmf_graph.json' \
+      '  cuda config: $HOME/bmf/bmf_graph_cuda.json' \
+      '  workdir:     $HOME/bmf (override with BMF_WORKDIR)' \
+      '' \
+      'Notes:' \
+      '  - demo-transcode does NOT overwrite the default config; it renders a run graph in workdir.' \
+      '  - You can edit $HOME/bmf/*.json to change defaults (then run demo-transcode again).' \
+      '' \
+      'Run examples:' \
+      '  - Debug (workspace): ll-builder run -f linglong.yaml -- bmf demo-transcode --input /path/in.mp4' \
+      '  - Release (installed): ll-cli run io.github.babitmf.bmf -- bmf demo-transcode --input /path/in.mp4'
+  }
+
+  if [ "$#" -eq 0 ]; then
+    usage
+    exit 0
+  fi
+
+  CONFIG_DIR="${BMF_CONFIGDIR:-$HOME/bmf}"
+  WORKDIR="${BMF_WORKDIR:-$CONFIG_DIR}"
+  CONFIG="$CONFIG_DIR/bmf_graph.json"
+  CUDA_CONFIG="$CONFIG_DIR/bmf_graph_cuda.json"
+  GRAPH_RUN="$WORKDIR/bmf_graph.run.json"
+  CUDA_GRAPH_RUN="$WORKDIR/bmf_graph_cuda.run.json"
+
+  mkdir -p "$CONFIG_DIR" "$WORKDIR"
+
+  json_escape() {
+    # Escape backslash and double quote for JSON string values.
+    printf '%s' "$1" | sed -e 's|\\|\\\\|g' -e 's|"|\\"|g'
+  }
+
+  parse_bitrate() {
+    # Accept: 128000, 128k, 192K, 1m, 1M
+    v="$1"
+    case "$v" in
+      *[Kk]) n="${v%[Kk]}"; printf '%s' "$((n * 1000))" ;;
+      *[Mm]) n="${v%[Mm]}"; printf '%s' "$((n * 1000000))" ;;
+      *) printf '%s' "$v" ;;
+    esac
+  }
+
+  write_default_config() {
+    cat > "$CONFIG" <<'JSON'
+  {
+    "mode": "normal",
+    "input_streams": [],
+    "output_streams": [],
+    "option": { "dump_graph": 1 },
+    "nodes": [
+      {
+        "id": 0,
+        "option": { "input_path": "__INPUT__" },
+        "input_streams": [],
+        "output_streams": [
+          { "identifier": "audio:ffmpeg_decoder_0_2", "alias": "" },
+          { "identifier": "video:ffmpeg_decoder_0_1", "alias": "" }
+        ],
+        "module_info": { "name": "c_ffmpeg_decoder", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 1,
+        "option": { "name": "scale", "para": "320:240" },
+        "input_streams": [ { "identifier": "ffmpeg_decoder_0_1", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_1_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 2,
+        "option": { "name": "vflip" },
+        "input_streams": [ { "identifier": "ffmpeg_filter_1_0", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_2_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 3,
+        "option": { "name": "null" },
+        "input_streams": [ { "identifier": "ffmpeg_filter_2_0", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_3_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 4,
+        "option": {
+          "video_params": { "width": 320, "height": 240, "codec": "h264", "crf": 23, "preset": "veryfast" },
+          "audio_params": { "channels": 2, "bit_rate": 128000, "codec": "aac", "sample_rate": 44100 },
+          "output_path": "__OUTPUT__"
+        },
+        "input_streams": [
+          { "identifier": "ffmpeg_filter_3_0", "alias": "" },
+          { "identifier": "ffmpeg_decoder_0_2", "alias": "" }
+        ],
+        "output_streams": [],
+        "module_info": { "name": "c_ffmpeg_encoder", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 1,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      }
+    ]
+  }
+  JSON
+  }
+
+  write_cuda_config() {
+    # CUDA/NVENC template:
+    # - Decoder: hwaccel=cuda
+    # - Encoder: h264_nvenc
+    cat > "$CUDA_CONFIG" <<'JSON'
+  {
+    "mode": "normal",
+    "input_streams": [],
+    "output_streams": [],
+    "option": { "dump_graph": 1 },
+    "nodes": [
+      {
+        "id": 0,
+        "option": { "input_path": "__INPUT__", "video_params": { "hwaccel": "cuda", "hwaccel_check": 0 } },
+        "input_streams": [],
+        "output_streams": [
+          { "identifier": "audio:ffmpeg_decoder_0_2", "alias": "" },
+          { "identifier": "video:ffmpeg_decoder_0_1", "alias": "" }
+        ],
+        "module_info": { "name": "c_ffmpeg_decoder", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 1,
+        "option": { "name": "scale", "para": "320:240" },
+        "input_streams": [ { "identifier": "ffmpeg_decoder_0_1", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_1_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 2,
+        "option": { "name": "vflip" },
+        "input_streams": [ { "identifier": "ffmpeg_filter_1_0", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_2_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 3,
+        "option": { "name": "null" },
+        "input_streams": [ { "identifier": "ffmpeg_filter_2_0", "alias": "" } ],
+        "output_streams": [ { "identifier": "ffmpeg_filter_3_0", "alias": "" } ],
+        "module_info": { "name": "c_ffmpeg_filter", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 0,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      },
+      {
+        "id": 4,
+        "option": {
+          "video_params": { "width": 320, "height": 240, "codec": "h264_nvenc", "bit_rate": 2000000, "preset": "p4" },
+          "audio_params": { "channels": 2, "bit_rate": 128000, "codec": "aac", "sample_rate": 44100 },
+          "output_path": "__OUTPUT__"
+        },
+        "input_streams": [
+          { "identifier": "ffmpeg_filter_3_0", "alias": "" },
+          { "identifier": "ffmpeg_decoder_0_2", "alias": "" }
+        ],
+        "output_streams": [],
+        "module_info": { "name": "c_ffmpeg_encoder", "type": "", "path": "", "entry": "" },
+        "input_manager": "immediate",
+        "scheduler": 1,
+        "meta_info": { "premodule_id": -1, "callback_bindings": [] }
+      }
+    ]
+  }
+  JSON
+  }
+
+  ensure_config() {
+    if [ ! -f "$CONFIG" ]; then
+      write_default_config
+    fi
+  }
+
+  ensure_cuda_config() {
+    if [ ! -f "$CUDA_CONFIG" ]; then
+      write_cuda_config
+    fi
+  }
+
+  render_graph() {
+    base="$1"
+    in_path="$2"
+    out_path="$3"
+    out_file="$4"
+
+    in_esc="$(json_escape "$in_path")"
+    out_esc="$(json_escape "$out_path")"
+
+    awk \
+      -v in_esc="$in_esc" \
+      -v out_esc="$out_esc" \
+      -v have_scale="$HAVE_SCALE" \
+      -v scale_para="$SCALE_PARA" \
+      -v scale_w="$SCALE_W" \
+      -v scale_h="$SCALE_H" \
+      -v have_crf="$HAVE_CRF" \
+      -v crf="$CRF" \
+      -v have_preset="$HAVE_PRESET" \
+      -v preset="$PRESET" \
+      -v have_ab="$HAVE_AB" \
+      -v ab="$AB" \
+      -v have_vflip="$HAVE_VFLIP" \
+      -v vflip_name="$VFLIP_NAME" \
+      -v have_hflip="$HAVE_HFLIP" \
+      -v hflip_name="$HFLIP_NAME" \
+      '
+      BEGIN { node = -1 }
+      {
+        # Track current node by matching: "id": N
+        if (match($0, /"id"[[:space:]]*:[[:space:]]*[0-9]+/)) {
+          s = substr($0, RSTART, RLENGTH)
+          sub(/.*:/, "", s)
+          gsub(/[[:space:]]*/, "", s)
+          node = s + 0
+        }
+
+        # Always patch input/output path
+        if ($0 ~ /"input_path"[[:space:]]*:/) {
+          sub(/"input_path"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"input_path\": \"" in_esc "\"")
+        }
+        if ($0 ~ /"output_path"[[:space:]]*:/) {
+          sub(/"output_path"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"output_path\": \"" out_esc "\"")
+        }
+
+        # scale node (id=1)
+        if (have_scale == 1 && node == 1 && $0 ~ /"para"[[:space:]]*:/) {
+          sub(/"para"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"para\": \"" scale_para "\"")
+        }
+
+        # vflip node (id=2), hflip node (id=3) - option/name usually on same line in template
+        if (have_vflip == 1 && node == 2 && $0 ~ /"name"[[:space:]]*:/) {
+          sub(/"name"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"name\": \"" vflip_name "\"")
+        }
+        if (have_hflip == 1 && node == 3 && $0 ~ /"name"[[:space:]]*:/) {
+          sub(/"name"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"name\": \"" hflip_name "\"")
+        }
+
+        # encoder node (id=4)
+        if (node == 4) {
+          if (have_scale == 1 && $0 ~ /"width"[[:space:]]*:/) {
+            sub(/"width"[[:space:]]*:[[:space:]]*[0-9]+/, "\"width\": " scale_w)
+          }
+          if (have_scale == 1 && $0 ~ /"height"[[:space:]]*:/) {
+            sub(/"height"[[:space:]]*:[[:space:]]*[0-9]+/, "\"height\": " scale_h)
+          }
+          if (have_crf == 1 && $0 ~ /"crf"[[:space:]]*:/) {
+            sub(/"crf"[[:space:]]*:[[:space:]]*[0-9]+/, "\"crf\": " crf)
+          }
+          if (have_preset == 1 && $0 ~ /"preset"[[:space:]]*:/) {
+            sub(/"preset"[[:space:]]*:[[:space:]]*"[^"]*"/, "\"preset\": \"" preset "\"")
+          }
+          # 注意：这里会匹配 node=4 里的 bit_rate（音频），模板里 video_params 用 bit_rate 或 crf，不会冲突
+          if (have_ab == 1 && $0 ~ /"bit_rate"[[:space:]]*:/) {
+            sub(/"bit_rate"[[:space:]]*:[[:space:]]*[0-9]+/, "\"bit_rate\": " ab)
+          }
+        }
+
+        print
+      }
+      ' "$base" > "$out_file"
+  }
+
+  cmd="$1"
+  shift || true
+
+  case "$cmd" in
+    run)
+      graph="${1:-}"
+      if [ -z "$graph" ]; then
+        echo "Usage: bmf run <graph_config.json>" >&2
+        exit 2
+      fi
+      exec "$BIN_DIR/run_bmf_graph" "$graph"
+      ;;
+
+    config)
+      sub="${1:-}"
+      case "$sub" in
+        init)
+          ensure_config
+          ensure_cuda_config
+          echo "Config: $CONFIG" >&2
+          echo "CUDA config: $CUDA_CONFIG" >&2
+          ;;
+        reset)
+          if [ -f "$CONFIG" ]; then
+            cp -a "$CONFIG" "$CONFIG.bak.$(date +%Y%m%d_%H%M%S)" || true
+          fi
+          if [ -f "$CUDA_CONFIG" ]; then
+            cp -a "$CUDA_CONFIG" "$CUDA_CONFIG.bak.$(date +%Y%m%d_%H%M%S)" || true
+          fi
+          write_default_config
+          write_cuda_config
+          echo "Reset config: $CONFIG" >&2
+          echo "Reset CUDA config: $CUDA_CONFIG" >&2
+          ;;
+        show)
+          ensure_config
+          cat "$CONFIG"
+          ;;
+        show-cuda)
+          ensure_cuda_config
+          cat "$CUDA_CONFIG"
+          ;;
+        path)
+          echo "$CONFIG"
+          ;;
+        path-cuda)
+          echo "$CUDA_CONFIG"
+          ;;
+        *)
+          echo "Usage: bmf config <init|reset|show|show-cuda|path|path-cuda>" >&2
+          exit 2
+          ;;
+      esac
+      ;;
+
+    demo-transcode|demo-transcode-cuda)
+      subcmd="$cmd"
+
+      # defaults for args
+      INPUT=""
+      OUTPUT=""
+
+      HAVE_SCALE=0
+      SCALE_PARA=""
+      SCALE_W=0
+      SCALE_H=0
+
+      HAVE_CRF=0
+      CRF=0
+
+      HAVE_PRESET=0
+      PRESET=""
+
+      HAVE_AB=0
+      AB=0
+
+      HAVE_VFLIP=0
+      VFLIP_NAME="vflip"
+
+      HAVE_HFLIP=0
+      HFLIP_NAME="null"
+
+      # parse args
+      while [ "$#" -gt 0 ]; do
+        case "$1" in
+          --help|-h)
+            usage
+            exit 0
+            ;;
+          --input)
+            shift
+            INPUT="${1:-}"
+            ;;
+          --output)
+            shift
+            OUTPUT="${1:-}"
+            ;;
+          --scale)
+            shift
+            s="${1:-}"
+            s="$(printf '%s' "$s" | tr 'xX' ':')"
+            SCALE_W="${s%%:*}"
+            SCALE_H="${s##*:}"
+            SCALE_PARA="$SCALE_W:$SCALE_H"
+            HAVE_SCALE=1
+            ;;
+          --crf)
+            shift
+            CRF="${1:-0}"
+            HAVE_CRF=1
+            ;;
+          --preset)
+            shift
+            PRESET="${1:-}"
+            HAVE_PRESET=1
+            ;;
+          --ab|--audio-bitrate)
+            shift
+            AB="$(parse_bitrate "${1:-0}")"
+            HAVE_AB=1
+            ;;
+          --vflip)
+            HAVE_VFLIP=1
+            VFLIP_NAME="vflip"
+            ;;
+          --no-vflip)
+            HAVE_VFLIP=1
+            VFLIP_NAME="null"
+            ;;
+          --hflip)
+            HAVE_HFLIP=1
+            HFLIP_NAME="hflip"
+            ;;
+          --no-hflip)
+            HAVE_HFLIP=1
+            HFLIP_NAME="null"
+            ;;
+          --)
+            shift
+            break
+            ;;
+          -*)
+            echo "Unknown option: $1" >&2
+            echo "Tip: bmf demo-transcode --help" >&2
+            exit 2
+            ;;
+          *)
+            if [ -z "$INPUT" ]; then
+              INPUT="$1"
+            elif [ -z "$OUTPUT" ]; then
+              OUTPUT="$1"
+            else
+              echo "Unexpected argument: $1" >&2
+              exit 2
+            fi
+            ;;
+        esac
+        shift || true
+      done
+
+      if [ -z "$INPUT" ]; then
+        INPUT="$WORKDIR/in.mp4"
+      fi
+      if [ -z "$OUTPUT" ]; then
+        OUTPUT="$WORKDIR/out.mp4"
+      fi
+
+      if [ ! -f "$INPUT" ]; then
+        echo "Input not found: $INPUT" >&2
+        echo "Tip: cp /path/to/video.mp4 \"$WORKDIR/in.mp4\"" >&2
+        echo "Config path: $CONFIG" >&2
+        exit 0
+      fi
+
+      if [ "$subcmd" = "demo-transcode" ]; then
+        ensure_config
+        render_graph "$CONFIG" "$INPUT" "$OUTPUT" "$GRAPH_RUN"
+        echo "Run graph: $GRAPH_RUN" >&2
+        exec "$BIN_DIR/run_bmf_graph" "$GRAPH_RUN"
+      fi
+
+      # demo-transcode-cuda:
+      ensure_cuda_config
+      render_graph "$CUDA_CONFIG" "$INPUT" "$OUTPUT" "$CUDA_GRAPH_RUN"
+      echo "Run CUDA graph: $CUDA_GRAPH_RUN" >&2
+
+      if "$BIN_DIR/run_bmf_graph" "$CUDA_GRAPH_RUN"; then
+        exit 0
+      fi
+
+      echo "CUDA/NVENC path failed; falling back to software demo-transcode." >&2
+      ensure_config
+      render_graph "$CONFIG" "$INPUT" "$OUTPUT" "$GRAPH_RUN"
+      echo "Run graph: $GRAPH_RUN" >&2
+      exec "$BIN_DIR/run_bmf_graph" "$GRAPH_RUN"
+      ;;
+
+    run_bmf_graph|module_manager|trace_format_log)
+      exec "$BIN_DIR/$cmd" "$@"
+      ;;
+
+    *)
+      # Default: treat args as run_bmf_graph arguments
+      exec "$BIN_DIR/run_bmf_graph" "$cmd" "$@"
+      ;;
+  esac
+  EOF
+
+  chmod +x "$PREFIX/bin/bmf"
+
+sources:
+  - kind: git
+    url: https://github.com/BabitMF/bmf.git
+    name: bmf
+    commit: v0.2.0
+    version: v0.2.0
+    submodules: true
+  # linglong:gen_deb_source sources amd64 https://ci.deepin.com/repo/deepin/deepin-community/stable crimson/release main commercial community
+  # linglong:gen_deb_source install libhmp1
\ No newline at end of file