diff --git a/build/install_deps_alpine.sh b/build/install_deps_alpine.sh
new file mode 100755
index 0000000..f76b2ec
--- /dev/null
+++ b/build/install_deps_alpine.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+apk update
+apk add \
+    bash \
+    git \
+    perl \
+    make \
+    cmake \
+    flex \
+    bison \
+    automake \
+    autoconf \
+    libtool \
+    qemu-arm \
+    qemu-aarch64 \
+    file \
+    texinfo \
+    zip \
+    wget \
+    coreutils \
+    gawk \
+    gmp-dev \
+    libunistring-dev \
+    libffi-dev \
+    lttng-ust-dev \
+    curl \
+    rsync \
+    util-linux
\ No newline at end of file
diff --git a/build/lib.sh b/build/lib.sh
index ec604e8..8107faa 100755
--- a/build/lib.sh
+++ b/build/lib.sh
@@ -40,13 +40,13 @@ set_http_proxy(){
 get_host_triple(){
     local host
     if [ "$CURRENT_ARCH" == "x86" ];then
-        host="i486-linux-musl"
+        host="i686-linux-musl"
     elif [ "$CURRENT_ARCH" == "x86_64" ];then
-        host="x86_64-unknown-linux-musl"
+        host="x86_64-linux-musl"
     elif [ "$CURRENT_ARCH" == "armhf" ];then
         host="arm-linux-musleabihf"
     elif [ "$CURRENT_ARCH" == "aarch64" ];then
-        host="aarch64-linux-musleabi"
+        host="aarch64-linux-musl"
     fi
     echo $host
 }
@@ -157,23 +157,20 @@ get_version(){
 }
 
 lib_create_tmp_dir(){
-    local tmp_dir
-    tmp_dir=$(mktemp -dt -p "${TMP_DIR}" tmpdir.XXXXXX)
+    local tmp_dir=$(mktemp -dt -p ${TMP_DIR} tmpdir.XXXXXX)
     echo "$tmp_dir"
 }
 
 lib_check_lib_arch(){
     lib=$1
-    local tmp_dir
-    local output
     if [ ! -f "$lib" ];then
         echo ""
         return
     fi
-    tmp_dir=$(lib_create_tmp_dir)
+    local tmp_dir=$(lib_create_tmp_dir)
     cp "$lib" "$tmp_dir"
     bash -c "cd ${tmp_dir}; ar x $(basename ${lib})"
-    output=$(find "${tmp_dir}" -name "*.o" -exec file {} \;)
+    local output=$(find "${tmp_dir}" -name "*.o" -exec file {} \;)
     if echo "$output" | grep -q "Intel 80386";then
         echo "Arch of ${lib} is x86" >&2
         echo "x86"
@@ -262,7 +259,7 @@ lib_build_ncurses(){
     CMD="CFLAGS=\"${GCC_OPTS}\" "
     CMD+="CXXFLAGS=\"${GXX_OPTS}\" "
     CMD+="./configure --host=$(get_host_triple) --disable-shared --enable-static"
-    if [ "$CURRENT_ARCH" != "x86" ] && [ "$CURRENT_ARCH" != "x86_64" ];then
+    if [ "$CURRENT_ARCH"!="x86" -a "$CURRENT_ARCH"!="x86_64" ];then
         CMD+=" --with-build-cc=/x86_64-linux-musl-cross/bin/x86_64-linux-musl-gcc"
     fi
     eval "$CMD"
diff --git a/build/targets/build_gdb.sh b/build/targets/build_gdb.sh
index f26e9b3..47d47fa 100755
--- a/build/targets/build_gdb.sh
+++ b/build/targets/build_gdb.sh
@@ -14,57 +14,37 @@ build_gdb() {
     fetch "$GIT_BINUTILS_GDB" "${BUILD_DIRECTORY}/binutils-gdb" git
     cd "${BUILD_DIRECTORY}/binutils-gdb/" || { echo "Cannot cd to ${BUILD_DIRECTORY}/binutils-gdb/"; exit 1; }
     git clean -fdx
-    git checkout gdb-9.2-release
+    git checkout gdb-10.1-release
 
     CMD="CFLAGS=\"${GCC_OPTS}\" "
     CMD+="CXXFLAGS=\"${GXX_OPTS}\" "
-    CMD+="LDFLAGS=\"-static -pthread\" "
-    if [ "$CURRENT_ARCH" != "x86" ] && [ "$CURRENT_ARCH" != "x86_64" ];then
+    CMD+="LDFLAGS=\"-static\" "
+    if [ "$CURRENT_ARCH" != "x86_64" ];then
         CMD+="CC_FOR_BUILD=\"/x86_64-linux-musl-cross/bin/x86_64-linux-musl-gcc\" "
         CMD+="CPP_FOR_BUILD=\"/x86_64-linux-musl-cross/bin/x86_64-linux-musl-g++\" "
     fi
-    CMD+="${BUILD_DIRECTORY}/binutils-gdb/configure --target=$(get_host_triple) --host=x86_64-unknown-linux-musl "
-    CMD+="--disable-shared --enable-static"
+    CMD+="${BUILD_DIRECTORY}/binutils-gdb/configure --build=x86_64-linux-musl --host=$(get_host_triple) "
+    CMD+="--disable-shared --enable-static --enable-gdbserver --disable-nls"
 
-    GDB_CMD="${CMD} --disable-interprocess-agent"
-
-    cd "${BUILD_DIRECTORY}/binutils-gdb/"
-    mkdir build
-    cd build
-    eval "$GDB_CMD"
-    ls -la
-    
-    cd "${BUILD_DIRECTORY}/binutils-gdb/"
-    MAKE_PROG="${MAKE-make}"
-    MAKE="${MAKE_PROG} AR=true LINK=true"
-    export MAKE
-    ${MAKE} $* all-libiberty
-    ${MAKE} $* all-intl
-    ${MAKE} $* all-bfd
-    cd binutils
-    MAKE="${MAKE_PROG}"
-    export MAKE
-    ${MAKE} $* ar_DEPENDENCIES= ar_LDADD='../bfd/*.o ../libiberty/*.o `if test -f ../intl/gettext.o; then echo '../intl/*.o'; fi`' ar
-    ls -la
-    cp ar /usr/bin
-
-    cd "${BUILD_DIRECTORY}/binutils-gdb/build"
+    mkdir -p "${BUILD_DIRECTORY}/gdb_build"
+    cd "${BUILD_DIRECTORY}/gdb_build/"
+    eval "$CMD"
     make -j4
     
-    strip "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdb" "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdbserver/gdbserver"
+    strip "${BUILD_DIRECTORY}/gdb_build/gdb/gdb" "${BUILD_DIRECTORY}/gdb_build/gdbserver/gdbserver"
 }
 
 main() {
     build_gdb
-    if [ ! -f "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdb" ] || \
-        [ ! -f "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdbserver/gdbserver" ];then
+    if [ ! -f "${BUILD_DIRECTORY}/gdb_build/gdb/gdb" ] || \
+        [ ! -f "${BUILD_DIRECTORY}/gdb_build/gdbserver/gdbserver" ];then
         echo "[-] Building GDB ${CURRENT_ARCH} failed!"
         exit 1
     fi
-    GDB_VERSION=$(get_version "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdb --version |head -n1 |awk '{print \$4}'")
-    GDBSERVER_VERSION=$(get_version "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdbserver/gdbserver --version |head -n1 |awk '{print \$4}'")
-    cp "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdb" "${OUTPUT_DIRECTORY}/gdb${GDB_VERSION}"
-    cp "${BUILD_DIRECTORY}/binutils-gdb/gdb/gdbserver/gdbserver" "${OUTPUT_DIRECTORY}/gdbserver${GDBSERVER_VERSION}"
+    GDB_VERSION=$(get_version "${BUILD_DIRECTORY}/gdb_build/gdb/gdb --version |head -n1 |awk '{print \$4}'")
+    GDBSERVER_VERSION=$(get_version "${BUILD_DIRECTORY}/gdb_build/gdbserver/gdbserver --version |head -n1 |awk '{print \$4}'")
+    cp "${BUILD_DIRECTORY}/gdb_build/gdb/gdb" "${OUTPUT_DIRECTORY}/gdb${GDB_VERSION}"
+    cp "${BUILD_DIRECTORY}/gdb_build/gdbserver/gdbserver" "${OUTPUT_DIRECTORY}/gdbserver${GDBSERVER_VERSION}"
     echo "[+] Finished building GDB ${CURRENT_ARCH}"
 
     echo ::set-output name=PACKAGED_NAME::"gdb${GDB_VERSION}"
diff --git a/build/targets/build_nmap.sh b/build/targets/build_nmap.sh
index 20bd7ee..564528f 100755
--- a/build/targets/build_nmap.sh
+++ b/build/targets/build_nmap.sh
@@ -36,9 +36,9 @@ build_nmap() {
 main() {
     lib_build_openssl
     build_nmap
-    if [ ! -f "${BUILD_DIRECTORY}/nmap/nmap" ] || \
-        [ ! -f "${BUILD_DIRECTORY}/nmap/ncat/ncat" ] || \
-        [ ! -f "${BUILD_DIRECTORY}/nmap/nping/nping" ];then
+    if [ ! -f "${BUILD_DIRECTORY}/nmap/nmap" -o \
+         ! -f "${BUILD_DIRECTORY}/nmap/ncat/ncat" -o \
+         ! -f "${BUILD_DIRECTORY}/nmap/nping/nping" ];then
         echo "[-] Building Nmap ${CURRENT_ARCH} failed!"
         exit 1
     fi
@@ -63,7 +63,7 @@ main() {
     fi
     cd "${BUILD_DIRECTORY}/nmap"
     make install
-    cp -r /usr/local/share/nmap/* "$NMAP_DIR"
+    cp -r /usr/local/share/nmap/* $NMAP_DIR
     echo "[+] Copied data to Nmap data dir"
 }
 
diff --git a/build/targets/build_openssh.sh b/build/targets/build_openssh.sh
index 14a2744..cb5c130 100755
--- a/build/targets/build_openssh.sh
+++ b/build/targets/build_openssh.sh
@@ -33,8 +33,8 @@ main() {
     lib_build_openssl
     lib_build_zlib
     build_openssh
-    if [ ! -f "${BUILD_DIRECTORY}/openssh-portable/ssh" ] || \
-        [ ! -f "${BUILD_DIRECTORY}/openssh-portable/sshd" ];then
+    if [ ! -f "${BUILD_DIRECTORY}/openssh-portable/ssh" -o \
+         ! -f "${BUILD_DIRECTORY}/openssh-portable/sshd" ];then
         echo "[-] Building OpenSSH ${CURRENT_ARCH} failed!"
         exit 1
     fi
@@ -43,7 +43,7 @@ main() {
     cp "${BUILD_DIRECTORY}/openssh-portable/sshd" "${OUTPUT_DIRECTORY}/sshd${OPENSSH_VERSION}"
     echo "[+] Finished building OpenSSH ${CURRENT_ARCH}"
 
-    OPENSSH_VERSION=$(echo "$OPENSSH_VERSION" | sed 's/-//')
+    OPENSSH_VERSION=$(echo $OPENSSH_VERSION | sed 's/-//')
     echo ::set-output name=PACKAGED_NAME::"${OPENSSH_VERSION}"
     echo ::set-output name=PACKAGED_NAME_PATH::"/output/*"
 }
diff --git a/build/targets/build_strace.sh b/build/targets/build_strace.sh
new file mode 100755
index 0000000..9b9c442
--- /dev/null
+++ b/build/targets/build_strace.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+set -e
+set -x
+set -o pipefail
+if [ "$#" -ne 1 ];then
+    echo "Usage: ${0} [x86|x86_64|armhf|aarch64]"
+    echo "Example: ${0} x86_64"
+    exit 1
+fi
+source $GITHUB_WORKSPACE/build/lib.sh
+init_lib "$1"
+
+build_strace() {
+    fetch "https://github.com/strace/strace" "${BUILD_DIRECTORY}/strace" git
+    cd "${BUILD_DIRECTORY}/strace"
+    git clean -fdx
+    git checkout v5.7
+    ./bootstrap
+    CMD="CFLAGS=\"${GCC_OPTS}\" "
+    CMD+="CXXFLAGS=\"${GXX_OPTS}\" "
+    CMD+="LDFLAGS=\"-static -pthread\" "
+    if [ "$CURRENT_ARCH" != "x86" ] && [ "$CURRENT_ARCH" != "x86_64" ];then
+        CMD+="CC_FOR_BUILD=\"/i686-linux-musl-cross/bin/i686-linux-musl-gcc\" "
+        CMD+="CPP_FOR_BUILD=\"/i686-linux-musl-cross/bin/i686-linux-musl-g++\" "
+    fi
+    CMD+="./configure --host=i486-linux-musl --target=$(get_host_triple)"
+    eval "$CMD"
+    make CFLAGS="-w" -j4
+    strip strace
+}
+
+main() {
+    build_strace
+    local version
+    version=$(get_version "${BUILD_DIRECTORY}/strace/strace --version 2>&1 | head -n1 | awk '{print \$4}'")
+    cp "${BUILD_DIRECTORY}/strace/strace" "${OUTPUT_DIRECTORY}/strace"
+    echo "[+] Finished building strace ${CURRENT_ARCH}"
+
+    echo ::set-output name=PACKAGED_NAME::"strace${version}"
+    echo ::set-output name=PACKAGED_NAME_PATH::"${OUTPUT_DIRECTORY}/*"
+}
+
+main
diff --git a/build/targets/build_tcpreplay.sh b/build/targets/build_tcpreplay.sh
new file mode 100755
index 0000000..eb46fcf
--- /dev/null
+++ b/build/targets/build_tcpreplay.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+set -e
+set -x
+set -o pipefail
+if [ "$#" -ne 1 ];then
+    echo "Usage: ${0} [x86|x86_64|armhf|aarch64]"
+    echo "Example: ${0} x86_64"
+    exit 1
+fi
+source $GITHUB_WORKSPACE/build/lib.sh
+init_lib "$1"
+
+build_autogen(){
+    fetch "http://ftp.gnu.org/gnu/autogen/rel5.16.2/autogen-5.16.2.tar.gz" "${BUILD_DIRECTORY}/autogen" http
+    cd "${BUILD_DIRECTORY}/autogen"
+    automake
+    CFLAGS="${GCC_OPTS}" \
+        CXXFLAGS="${GXX_OPTS}" \
+        CPPFLAGS="-static" \
+        LDFLAGS="-static" \
+        ./configure \
+            --host="$(get_host_triple)"
+    make -j4
+    make install
+}
+
+build_tcpreplay() {
+    fetch "https://github.com/appneta/tcpreplay.git" "${BUILD_DIRECTORY}/tcpdump" git
+    cd "${BUILD_DIRECTORY}/tcpreplay"
+    git clean -fdx
+    git checkout v4.3.3
+    export LIBPCAP_PATH="${BUILD_DIRECTORY}/libpcap"
+    ./autogen.sh
+    CFLAGS="${GCC_OPTS} -I${LIBPCAP_PATH} -L${LIBPCAP_PATH}" \
+        CXXFLAGS="${GXX_OPTS}" \
+        CPPFLAGS="-static" \
+        LDFLAGS="-static" \
+        ./configure \
+            --host="$(get_host_triple)"
+    make -j4
+    strip tcpreplay
+}
+
+main() {
+    lib_build_libpcap
+    build_autogen
+    build_tcpreplay
+    local version
+    version=$(get_version "${BUILD_DIRECTORY}/tcpreplay/tcpreplay --version 2>&1 | head -n1 | awk '{print \$3}'")
+    cp "${BUILD_DIRECTORY}/tcpreplay/tcpreplay" "${OUTPUT_DIRECTORY}/tcpreplay"
+    echo "[+] Finished building tcpreplay ${CURRENT_ARCH}"
+
+    echo ::set-output name=PACKAGED_NAME::"tcpreplay${version}"
+    echo ::set-output name=PACKAGED_NAME_PATH::"${OUTPUT_DIRECTORY}/*"
+}
+
+main
diff --git a/patches/gdb/gdb-aarch64-header-sigcontext-fix.patch b/patches/gdb/gdb-aarch64-header-sigcontext-fix.patch
new file mode 100644
index 0000000..c679ae3
--- /dev/null
+++ b/patches/gdb/gdb-aarch64-header-sigcontext-fix.patch
@@ -0,0 +1,18 @@
+--- /tmp/aarch64-linux-musl-cross/aarch64-linux-musl/include/asm/sigcontext.h
++++ /aarch64-linux-musl-cross/aarch64-linux-musl/include/asm/sigcontext.h
+@@ -25,6 +25,7 @@
+  * Signal context structure - contains all info to do with the state
+  * before the signal handler was invoked.
+  */
++#if false
+ struct sigcontext {
+ 	__u64 fault_address;
+ 	/* AArch64 registers */
+@@ -127,6 +128,7 @@
+ 	__u16 vl;
+ 	__u16 __reserved[3];
+ };
++#endif
+ 
+ #endif /* !__ASSEMBLY__ */
+