diff --git a/Dockerfile.end-to-end.fast b/Dockerfile.end-to-end.fast
new file mode 100644
index 00000000000..b6ca6c9e99f
--- /dev/null
+++ b/Dockerfile.end-to-end.fast
@@ -0,0 +1,25 @@
+# Use an ARG to define the architecture, defaulting to amd64
+ARG ARCH=amd64
+# aztec must be built from Dockerfile.fast
+FROM aztecprotocol/aztec AS aztec
+FROM aztecprotocol/build:1.0-${ARCH}
+
+# Install additional dependencies
+RUN apt-get update && apt-get install -y software-properties-common \
+    && add-apt-repository ppa:xtradeb/apps -y && apt-get update \
+    && apt-get install -y wget gnupg \
+    && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
+    && echo "deb [arch=$(dpkg --print-architecture)] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list \
+    && apt update && apt install -y curl chromium netcat-openbsd \
+    && rm -rf /var/lib/apt/lists/*
+
+ENV CHROME_BIN="/usr/bin/chromium"
+ENV PATH=/opt/foundry/bin:$PATH
+ENV HARDWARE_CONCURRENCY=""
+ENV FAKE_PROOFS=""
+ENV PROVER_AGENT_CONCURRENCY=8
+
+COPY --from=aztec /usr/src/ /usr/src/
+WORKDIR /usr/src/yarn-project/end-to-end
+
+ENTRYPOINT ["yarn", "test"]
diff --git a/Dockerfile.fast b/Dockerfile.fast
index dee0f5ff6f8..c91529a1043 100644
--- a/Dockerfile.fast
+++ b/Dockerfile.fast
@@ -20,99 +20,83 @@ RUN git init -b master \
     && git config user.email 'tech@aztecprotocol.com'
 
 # ---------- EXTRACT BUILD-SYSTEM ----------
-COPY build-system.tar.gz .
-RUN tar -xzf build-system.tar.gz \
-    && rm build-system.tar.gz && git add . \
+COPY build-system build-system
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # ---------- BUILD BARRETENBERG ----------
-COPY barretenberg.tar.gz .
-RUN tar -xzf barretenberg.tar.gz \
-    && rm barretenberg.tar.gz && git add . \
+COPY barretenberg barretenberg
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Bootstrap cache for barretenberg/cpp
 RUN --mount=type=secret,id=aws_access_key_id \
     --mount=type=secret,id=aws_secret_access_key \
-    cd barretenberg/cpp \
+    bash -c 'cd barretenberg \
     && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
     AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
-    && echo "barretenberg/cpp: Success"
-
-# Bootstrap cache for barretenberg/ts
-RUN --mount=type=secret,id=aws_access_key_id \
-    --mount=type=secret,id=aws_secret_access_key \
-    cd barretenberg/ts \
-    && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
-    AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
-    && echo "barretenberg/ts: Success"
+    ./bootstrap_cache.sh' \
+    && echo "barretenberg: Success"
 
 # ---------- BUILD NOIR ----------
-COPY noir.tar.gz .
-RUN tar -xzf noir.tar.gz \
-    && rm noir.tar.gz && git add . \
+ADD noir noir
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Bootstrap cache for Noir
 RUN --mount=type=secret,id=aws_access_key_id \
     --mount=type=secret,id=aws_secret_access_key \
-    cd noir \
+    bash -c 'cd noir \
     && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
     AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
+    ./bootstrap_cache.sh' \
     && echo "noir: Success"
 
 # ---------- BUILD L1 CONTRACTS ----------
-COPY l1-contracts.tar.gz .
-RUN tar -xzf l1-contracts.tar.gz \
-    && rm l1-contracts.tar.gz && git add . \
+ADD l1-contracts l1-contracts
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Bootstrap cache for L1 Contracts
 RUN --mount=type=secret,id=aws_access_key_id \
     --mount=type=secret,id=aws_secret_access_key \
-    cd l1-contracts \
+    bash -c 'cd l1-contracts \
     && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
     AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
+    ./bootstrap_cache.sh' \
     && echo "l1-contracts: Success"
 
 # ---------- BUILD AVM TRANSPILER ----------
-COPY avm-transpiler.tar.gz .
-RUN tar -xzf avm-transpiler.tar.gz \
-    && rm avm-transpiler.tar.gz && git add . \
+ADD avm-transpiler avm-transpiler
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Bootstrap cache for AVM Transpiler
 RUN --mount=type=secret,id=aws_access_key_id \
     --mount=type=secret,id=aws_secret_access_key \
-    cd avm-transpiler \
+    bash -c 'cd avm-transpiler \
     && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
     AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
+    ./bootstrap_cache.sh' \
     && echo "avm-transpiler: Success"
 
 # ---------- BUILD NOIR PROJECTS ----------
-COPY noir-projects.tar.gz .
-RUN tar -xzf noir-projects.tar.gz \
-    && rm noir-projects.tar.gz && git add . \
+ADD noir-projects noir-projects
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Bootstrap cache for Noir Projects
 RUN --mount=type=secret,id=aws_access_key_id \
     --mount=type=secret,id=aws_secret_access_key \
-    cd noir-projects \
+    bash -c 'cd noir-projects \
     && AWS_ACCESS_KEY_ID=$(cat /run/secrets/aws_access_key_id) \
     AWS_SECRET_ACCESS_KEY=$(cat /run/secrets/aws_secret_access_key) \
-    ./bootstrap_cache.sh \
+    ./bootstrap_cache.sh' \
     && echo "noir-projects: Success"
 
 # ---------- BUILD YARN PROJECT ----------
-COPY yarn-project.tar.gz .
-RUN tar -xzf yarn-project.tar.gz \
-    && rm yarn-project.tar.gz && git add . \
+ADD yarn-project yarn-project
+RUN git add . \
     && git commit -m "Update git metadata" >/dev/null
 
 # Build yarn-project directly (no cache script)
diff --git a/barretenberg/bootstrap_cache.sh b/barretenberg/bootstrap_cache.sh
new file mode 100755
index 00000000000..252e25f2e9f
--- /dev/null
+++ b/barretenberg/bootstrap_cache.sh
@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -eu
+
+cd "$(dirname "$0")"
+
+# Run both tasks in the background
+(cd cpp && ./bootstrap_cache.sh "$@") &
+pid_cpp=$!
+(cd ts && ./bootstrap_cache.sh "$@") &
+pid_ts=$!
+
+# Wait for both processes and capture any non-zero exit codes
+wait $pid_cpp || exit_code=$?
+wait $pid_ts || exit_code=$?
+
+# Exit with the first non-zero exit code, if any
+exit ${exit_code:-0}
diff --git a/build-system/s3-cache-scripts/cache-download.sh b/build-system/s3-cache-scripts/cache-download.sh
index 8d72f860460..31c62bfe3ca 100755
--- a/build-system/s3-cache-scripts/cache-download.sh
+++ b/build-system/s3-cache-scripts/cache-download.sh
@@ -17,8 +17,17 @@ function on_exit() {
 # Run on any exit
 trap on_exit EXIT
 
+# Extract endpoint URL if S3_BUILD_CACHE_AWS_PARAMS is set
+if [[ -n "${S3_BUILD_CACHE_AWS_PARAMS:-}" ]]; then
+  # Extract URL from S3_BUILD_CACHE_AWS_PARAMS (assumes the format "--endpoint-url <URL>")
+  # TODO stop passing with endpoint url
+  S3_ENDPOINT=$(echo "$S3_BUILD_CACHE_AWS_PARAMS" | sed -n 's/--endpoint-url \([^ ]*\)/\1/p')
+else
+  # Default to AWS S3 URL if no custom endpoint is set
+  S3_ENDPOINT="http://aztec-ci-artifacts.s3.amazonaws.com"
+fi
 # Attempt to download the cache file
-aws ${S3_BUILD_CACHE_AWS_PARAMS:-} s3 cp "s3://aztec-ci-artifacts/build-cache/$TAR_FILE" "$TAR_FILE" --quiet --no-sign-request || (echo "Cache download of $TAR_FILE failed." && exit 1)
+curl -s -f -O "${S3_ENDPOINT}/build-cache/$TAR_FILE" || (echo "Cache download of $TAR_FILE failed." && exit 1)
 
 # Extract the cache file
 mkdir -p "$OUT_DIR"
diff --git a/docker_fast.sh b/docker_fast.sh
index 2c24eceac12..49d30243be6 100755
--- a/docker_fast.sh
+++ b/docker_fast.sh
@@ -1,43 +1,24 @@
 #!/usr/bin/env bash
 # TODO eventually rename this docker.sh when we've moved to it entirely
-set -eux
+set -eu
 
-function start_minio() {
-  if nc -z 127.0.0.1 12000 2>/dev/null >/dev/null ; then
-    # Already started
-    return
-  fi
-  docker run -d -p 12000:9000 -p 12001:12001 -v minio-data:/data \
-    quay.io/minio/minio server /data --console-address ":12001"
-  # Make our cache bucket
-  AWS_ACCESS_KEY_ID="minioadmin" AWS_SECRET_ACCESS_KEY="minioadmin" aws --endpoint-url http://localhost:12000 s3 mb s3://aztec-ci-artifacts 2>/dev/null || true
-}
+MAKE_END_TO_END=${1:-false}
 
 S3_BUILD_CACHE_UPLOAD=${S3_BUILD_CACHE_UPLOAD:-false}
 S3_BUILD_CACHE_MINIO_URL="http://$(hostname -I | awk '{print $1}'):12000"
 
-# Start local file server for a quicker cache layer
-start_minio
-
 if ! git diff-index --quiet HEAD --; then
-  echo "Warning: You have unstaged changes. Disabling S3 caching and local MinIO caching to avoid polluting cache (which uses Git data)." >&2
+  echo "Warning: You have unstaged changes. For now this is a fatal error as this script relies on git metadata." >&2
   S3_BUILD_CACHE_UPLOAD=false
   S3_BUILD_CACHE_DOWNLOAD=false
-  S3_BUILD_CACHE_MINIO_URL=""
-  echo "Fatal: For now, this is a fatal error as it would defeat the purpose of 'fast'." >&2
+  S3_BUILD_CACHE_MINIO_URL=""A
   exit 1
 elif [ ! -z "${AWS_ACCESS_KEY_ID:-}" ] ; then
   S3_BUILD_CACHE_DOWNLOAD=true
 elif [ -f ~/.aws/credentials ]; then
   # Retrieve credentials if available in AWS config
-
-  # Do not trace this information
-  set +x
   AWS_ACCESS_KEY_ID=$(aws configure get default.aws_access_key_id)
   AWS_SECRET_ACCESS_KEY=$(aws configure get default.aws_secret_access_key)
-
-  # Resume tracing
-  set -x
   S3_BUILD_CACHE_DOWNLOAD=true
 else
   S3_BUILD_CACHE_UPLOAD=false
@@ -52,11 +33,8 @@ function on_exit() {
 trap on_exit EXIT
 
 # Save each secret environment variable into a separate file in $TMP directory
-set +x
 echo "${AWS_ACCESS_KEY_ID:-}" > "$TMP/aws_access_key_id.txt"
 echo "${AWS_SECRET_ACCESS_KEY:-}" > "$TMP/aws_secret_access_key.txt"
-set -x
-
 echo "${S3_BUILD_CACHE_MINIO_URL:-}" > "$TMP/s3_build_cache_minio_url.txt"
 echo "${S3_BUILD_CACHE_UPLOAD:-}" > "$TMP/s3_build_cache_upload.txt"
 echo "${S3_BUILD_CACHE_DOWNLOAD:-}" > "$TMP/s3_build_cache_download.txt"
@@ -73,10 +51,19 @@ PROJECTS=(
   yarn-project
 )
 
+function copy() {
+  local project=$1
+  git archive --format=tar.gz --mtime='1970-01-01T00:00Z' -o "$TMP/$project.tar.gz" $(git rev-parse HEAD) $project
+  cd "$TMP"
+  tar -xzf $project.tar.gz
+  rm $project.tar.gz
+}
+# Write the git archives in parallel
 for project in "${PROJECTS[@]}"; do
-  # Archive Git-tracked files per project into a tar.gz file
-  git archive --format=tar.gz -o "$TMP/$project.tar.gz" HEAD $project
+  # Copy over JUST the git version of files over (bail if any fail)
+  copy $project || kill $0 &
 done
+wait
 
 # Run Docker build with secrets in the folder with our archive
 DOCKER_BUILDKIT=1 docker build -t aztecprotocol/aztec -f Dockerfile.fast --progress=plain \
@@ -85,4 +72,8 @@ DOCKER_BUILDKIT=1 docker build -t aztecprotocol/aztec -f Dockerfile.fast --progr
   --secret id=s3_build_cache_minio_url,src=$TMP/s3_build_cache_minio_url.txt \
   --secret id=s3_build_cache_upload,src=$TMP/s3_build_cache_upload.txt \
   --secret id=s3_build_cache_download,src=$TMP/s3_build_cache_download.txt \
-  "$TMP"
\ No newline at end of file
+  "$TMP"
+
+if [ $MAKE_END_TO_END != "false" ] ; then
+  DOCKER_BUILDKIT=1 docker build -t aztecprotocol/end-to-end -f Dockerfile.end-to-end.fast --progress=plain "$TMP"
+fi