diff --git a/docker/Dockerfile.builder b/docker/Dockerfile.builder
index ee21b22356..8ba65cf044 100644
--- a/docker/Dockerfile.builder
+++ b/docker/Dockerfile.builder
@@ -1,27 +1,39 @@
+# syntax=docker/dockerfile:1.7-labs
+
 # Target with dependencies to build all flow tools from their sources.
 # i.e., "./build_openroad.sh --local" from inside a docker container
 # NOTE: don't use this file directly unless you know what you are doing,
 # instead use etc/DockerHelper.sh
+
 ARG fromImage=openroad/flow-ubuntu22.04-dev:latest
 
-FROM $fromImage AS openroad-builder-base
+FROM $fromImage AS orfs-base
 
-ARG numThreads=$(nproc)
-
-COPY . /OpenROAD-flow-scripts
 WORKDIR /OpenROAD-flow-scripts
+COPY --link dev_env.sh dev_env.sh
+COPY --link build_openroad.sh build_openroad.sh
 
-RUN ./build_openroad.sh --no_init --local --threads ${numThreads}
-
-FROM $fromImage AS openroad-flow-scripts-base
+FROM orfs-base AS orfs-builder-base
 
-COPY . /OpenROAD-flow-scripts
-
-RUN rm -rf /OpenROAD-flow-scripts/tools /OpenROAD-flow-scripts/.git
-
-COPY --from=openroad-builder-base /OpenROAD-flow-scripts/tools/install /OpenROAD-flow-scripts/tools/install
-
-FROM $fromImage
+COPY --link tools tools
+ARG numThreads=$(nproc)
 
-COPY --from=openroad-flow-scripts-base /OpenROAD-flow-scripts /OpenROAD-flow-scripts
-WORKDIR /OpenROAD-flow-scripts
+RUN echo "" > tools/yosys/abc/.gitcommit && \
+  ./build_openroad.sh --no_init --local --threads ${numThreads}
+
+FROM orfs-base
+
+COPY --link flow/platforms flow/platforms
+COPY --link flow/designs flow/designs
+COPY --link flow/tutorials flow/tutorials
+COPY --link docs docs
+COPY --link flow/util flow/util
+COPY --link flow/scripts flow/scripts
+COPY --link flow/test flow/test
+COPY --link docker docker
+COPY --link --from=orfs-builder-base /OpenROAD-flow-scripts/tools/install tools/install
+COPY --link \
+     --exclude=.git* --exclude=tools/ --exclude=docs/ --exclude=docker/ \
+     --exclude=flow/designs --exclude=flow/platforms --exclude=flow/scripts \
+     --exclude=flow/test --exclude=flow/tutorials --exclude=flow/util \
+  . ./