diff --git a/3rd_party/simbody b/3rd_party/simbody
index 37e5805bbd..7ef1b38ad3 160000
--- a/3rd_party/simbody
+++ b/3rd_party/simbody
@@ -1 +1 @@
-Subproject commit 37e5805bbd6c73552f4602effbc83489d9cc2a5d
+Subproject commit 7ef1b38ad35a6b71cd2083a73b093a20313f9aa1
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 22cdbefd34..92a9cb1887 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,15 +19,10 @@ if(EMSCRIPTEN)
     set(BUILD_WITH_SIMBODY 1)
     set(ONLY_3D 1)
     set(BUILD_TESTS 1)
-    set(BUILD_STATIC_LIBRARIES on) # Simbody
-    set(BUILD_DYNAMIC_LIBRARIES off) # Simbody
-    add_definitions(-DSIMBODY_WITHOUT_LAPACK)
+    add_definitions(-D__SIMBODY_WITHOUT_LAPACK__)
+    add_definitions(-D__EIGEN__)
     add_definitions(-D__EMSCRIPTEN__)
 
-    set(EIGEN_ROOT ${SPHINXSYS_PROJECT_DIR}/3rd_party/eigen)
-    message("${EIGEN_ROOT}")
-    include_directories("${EIGEN_ROOT}")
-
     remove_definitions(-DTBB_2021_2_0)
     set(TBB_ROOT ${SPHINXSYS_PROJECT_DIR}/3rd_party/wasmtbb)
     include_directories("${TBB_ROOT}/include")
@@ -38,6 +33,19 @@ else()
     add_definitions(-DBOOST_AVAILABLE)
 endif()
 
+if(BUILD_WITH_SIMBODY)
+    add_definitions(-D__SIMBODY_WITHOUT_LAPACK__)
+    add_definitions(-D__EIGEN__)
+    set(EIGEN_ROOT ${SPHINXSYS_PROJECT_DIR}/3rd_party/eigen)
+    message("${EIGEN_ROOT}")
+    include_directories("${EIGEN_ROOT}")
+endif()
+
+if(STATIC_BUILD)
+    set(BUILD_STATIC_LIBRARIES 1) # Simbody
+    set(BUILD_DYNAMIC_LIBRARIES 0) # Simbody
+endif()
+
 if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
     # Set the possible values of build type for cmake-gui
diff --git a/build.sh b/build.sh
deleted file mode 100755
index 5f1a14cd64..0000000000
--- a/build.sh
+++ /dev/null
@@ -1,43 +0,0 @@
-#!/bin/bash
-
-BUILD_CONFIG=$1
-if [ -z "$1" ] ; then
-    BUILD_CONFIG=release
-fi
-
-BUILD_PLATFORM=$2
-if [ -z "$2" ] ; then
-    BUILD_PLATFORM=wasm
-fi
-
-BUILD_DIR=build_${BUILD_PLATFORM}_${BUILD_CONFIG}
-INSTALL_DIR=install_${BUILD_PLATFORM}_${BUILD_CONFIG}
-
-if [ $BUILD_PLATFORM == "wasm" ]; then
-
-    cd ./3rd_party/wasmtbb \
-        && emmake make -j$(nproc) tbb \
-        && cd ../..
-
-    echo 'Running wasm build ... '
-    source /emsdk/emsdk_env.sh
-    cmake -G Ninja -B$BUILD_DIR -H.\
-        -DEMSCRIPTEN=1 \
-        -DCMAKE_BUILD_TYPE=${BUILD_CONFIG} \
-        -DCMAKE_MODULE_PATH=$EMSDK/upstream/emscripten/cmake \
-        -DCMAKE_TOOLCHAIN_FILE=$EMSDK/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake 
-fi
-
-if [ $BUILD_PLATFORM == "x64" ]; then
-    echo 'Running x64 build ... '
-    cmake -G Ninja -B$BUILD_DIR -HSPHinXsys \
-        -DBUILD_PLATFORM=${BUILD_PLATFORM} \
-        -DCMAKE_BUILD_TYPE=${BUILD_CONFIG} \
-        -DWASM_BUILD=0
-fi
-
-cd $BUILD_DIR && ninja && cd ..
-
-# if [ $BUILD_PLATFORM == "wasm" ]; then
-#     cp -r $BUILD_DIR/src/bin/* js/
-# fi
\ No newline at end of file
diff --git a/package.json b/package.json
deleted file mode 100644
index f7b6b1d2c6..0000000000
--- a/package.json
+++ /dev/null
@@ -1,17 +0,0 @@
-{
-    "name": "sph-in-xsys",
-    "version": "1.0.0",
-    "description": "SPHinXsys_JS build",
-    "author": "Wen-Yang Chu & Bence Rochlitz",
-    "scripts": {
-      "build-docker": "docker build . -t sph-builder -f wasm-new.Dockerfile",
-      "interactive-docker": "docker run -it -v $PWD:/app sph-builder /bin/bash",
-      "build-wasm": "docker run -u $(id -u):$(id -g) -v $PWD:/app sph-builder ./build.sh release wasm",
-      "build-x64": "./build.sh release x64"
-    },
-    "dependencies": {},
-    "peerDependencies": {
-      "typescript": ">= 3.8.3"
-    }
-}
-  
\ No newline at end of file
diff --git a/wasm-new.Dockerfile b/wasm-new.Dockerfile
deleted file mode 100644
index a21cccab92..0000000000
--- a/wasm-new.Dockerfile
+++ /dev/null
@@ -1,17 +0,0 @@
-
-FROM emscripten/emsdk:latest
-
-ENV TZ=Europe/Berlin
-RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
-
-RUN apt-get update && apt-get install -y \ 
-    apt-utils \
-    cmake \
-    ninja-build \
-    ccache \
-    && apt-get clean \
-    && rm -rf /var/lib/apt/lists/*
-
-ENV CCACHE_DIR /app/.ccache
-
-WORKDIR /app
\ No newline at end of file