diff --git a/Dockerfile b/Dockerfile
index 9c53152..f07dcd0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,13 +1,17 @@
 FROM debian:latest
 
 RUN apt-get update && apt-get install -y \
-    build-essential \
-    cmake \
-    git \
-    nlohmann-json3-dev wget curl cmake ninja-build mold build-essential nodejs npm jq ccache \
+    build-essential cmake git wget tar curl ninja-build mold nodejs npm perl jq ccache nlohmann-json3-dev \
     && rm -rf /var/lib/apt/lists/*
 
-#RUN curl -fsSL https://get.docker.com | sh
+RUN echo "deb http://deb.debian.org/debian testing main" | tee /etc/apt/sources.list.d/testing-temp.list
+
+RUN apt-get update && apt-get -t testing install -y upx-ucl && \
+        rm -rf /var/lib/apt/lists/* && \
+        rm /etc/apt/sources.list.d/testing-temp.list && \
+        apt-get update
+
+RUN curl -fsSL https://get.docker.com | sh
 
 COPY --chmod=0755 ./src/* /usr/local/bin/
 
diff --git a/src/build.x86_64/openssl-3.5.0.tar.gz b/src/build.x86_64/openssl-3.5.0.tar.gz
new file mode 100644
index 0000000..475463d
Binary files /dev/null and b/src/build.x86_64/openssl-3.5.0.tar.gz differ
diff --git a/src/dropshell-build-install-requirements b/src/dropshell-build-install-requirements
index c15c1eb..dd20d92 100755
--- a/src/dropshell-build-install-requirements
+++ b/src/dropshell-build-install-requirements
@@ -197,6 +197,13 @@ function install_openssl_musl() {
     local MUSL_PATH="${INSTALL_DIR}/${FULLARCH}"
     [ -d "$MUSL_PATH" ] || _die "MUSL_PATH does not exist: $MUSL_PATH"
 
+    LIBPATH="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot/usr/lib"
+    [ -d "$LIBPATH" ] || LIBPATH="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot/usr/lib64"
+    if [ -f "$LIBPATH/libssl.a" ]; then
+        echo "OpenSSL $ARCH is already installed"
+        return
+    fi
+
     local BUILD_DIR="${SCRIPT_DIR}/build.$ARCH"
     mkdir -p "$BUILD_DIR"
 
@@ -213,8 +220,11 @@ function install_openssl_musl() {
     OPENSSL_TARGET=$(toolchain_to_openssl_target "$FULLARCH")
     local SYSROOT="$MUSL_PATH/${ARCH_SHORT_PREFIX}/sysroot"
     local CC="$MUSL_PATH/bin/${ARCH_SHORT_PREFIX}-gcc"
+    [ -f "$CC" ] || CC="$MUSL_PATH/bin/gcc"
     local AR="$MUSL_PATH/bin/${ARCH_SHORT_PREFIX}-ar"
+    [ -f "$AR" ] || AR="$MUSL_PATH/bin/ar"
     local RANLIB="$MUSL_PATH/bin/${ARCH_SHORT_PREFIX}-ranlib"
+    [ -f "$RANLIB" ] || RANLIB="$MUSL_PATH/bin/ranlib"
 
     DEST_PATH="$SYSROOT/usr/lib/libssl.a"
     if [ -f "$DEST_PATH" ]; then
@@ -243,7 +253,7 @@ function install_openssl_musl() {
 
     cd "$PREVDIR"
 
-    echo "OpenSSL built and installed for all detected musl toolchains."
+    echo "OpenSSL built and installed for $FULLARCH"
 }