./flutter/tools/gn \
      --embedder-for-target \
      --target-os linux \
      --linux-cpu arm \ 
      --target-sysroot DEVICE_SYSROOT
      --disable-desktop-embeddings \ 
      --arm-float-abi hard 
      --target-toolchain /usr 
      --target-triple arm-linux-gnueabihf 
      --runtime-mode debug
ninja -C out/linux_debug_unopt_arm

flutter --local-engine-src-path PATH_TO_BUILDED_ENGINE_src
--local-engine=host_debug_unopt build bundle

egl_display_ = eglGetDisplay(display_);
if (egl_display_ == EGL_NO_DISPLAY) {
  LogLastEGLError();
  FL_ERROR("Could not access EGL display.");
  return false;
}
if (eglInitialize(egl_display_, nullptr, nullptr) != EGL_TRUE) {
  LogLastEGLError();
  FL_ERROR("Could not initialize EGL display.");
  return false;
}
if (eglBindAPI(EGL_OPENGL_ES_API) != EGL_TRUE) {
  LogLastEGLError();
  FL_ERROR("Could not bind the ES API.");
  return false;
}

vm_snapshot_instructions_ = dlsym(fd, "_kDartVmSnapshotInstructions");
if (vm_snapshot_instructions_ == NULL) {
  error_ = strerror(errno);
  break;
}
vm_isolate_snapshot_instructions_ = dlsym(fd, "_kDartIsolateSnapshotInstructions");
if (vm_isolate_snapshot_instructions_ == NULL) {
  error_ = strerror(errno);
  break;
}
vm_snapshot_data_ = dlsym(fd, "_kDartVmSnapshotData");
if (vm_snapshot_data_ == NULL) {
  error_ = strerror(errno);
  break;
}
vm_isolate_snapshot_data_ = dlsym(fd, "_kDartIsolateSnapshotData");
if (vm_isolate_snapshot_data_ == NULL) {
  error_ = strerror(errno);
  break;
}

if (vm_snapshot_data_ == NULL ||
vm_snapshot_instructions_ == NULL ||
vm_isolate_snapshot_data_ == NULL ||
vm_isolate_snapshot_instructions_ == NULL) {
  return false;
}
*vm_snapshot_data = reinterpret_cast <
  const uint8_t * > (vm_snapshot_data_);
*vm_snapshot_instructions = reinterpret_cast <
  const uint8_t * > (vm_snapshot_instructions_);
*vm_isolate_snapshot_data = reinterpret_cast <
  const uint8_t * > (vm_isolate_snapshot_data_);
*vm_isolate_snapshot_instructions = reinterpret_cast <
  const uint8_t * > (vm_isolate_snapshot_instructions_);

FlutterProjectArgs args;
// передаем все необходимое в args
args.vm_snapshot_data = vm_snapshot_data;
args.vm_snapshot_instructions = vm_snapshot_instructions;
args.isolate_snapshot_data = vm_isolate_snapshot_data;
args.isolate_snapshot_instructions = vm_isolate_snapshot_instructions;

$HOST_ENGINE/dart-sdk/bin/dart \
--disable-dart-dev \
$HOST_ENGINE/gen/frontend_server.dart.snapshot \
--sdk-root $DEVICE_ENGINE}/flutter_patched_sdk/ \
--target=flutter \
-Ddart.developer.causal_async_stacks=false \
-Ddart.vm.profile=release \
-Ddart.vm.product=release \
--bytecode-options=source-positions \
--aot \
--tfa \
--packages .packages \
--output-dill build/tmp/app.dill \
--depfile build/kernel_snapshot.d \
package:lib/main.dart
$DEVICE_ENGINE/gen_snapshot                               \
    --deterministic                                             \
    --snapshot_kind=app-aot-elf                                 \
    --elf=build/lib/libapp.so                                   \
    --no-causal-async-stacks                                    \
    --lazy-async-stacks                                         \
    build/tmp/app.dill

$ file libapp.so
libapp.so: ELF 32-bit LSB shared object, ARM, EABI5 version 1 (SYSV),
dynamically linked

//...
filter: new ImageFilter.blur(sigmaX: 10.0, sigmaY: 10.0),
//...