diff --git a/ci/cloudbuild/builds/demo-install.sh b/ci/cloudbuild/builds/demo-install.sh
index bb8870d82a919..4f9ccd0343eae 100755
--- a/ci/cloudbuild/builds/demo-install.sh
+++ b/ci/cloudbuild/builds/demo-install.sh
@@ -47,7 +47,7 @@ fi
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
   "${cmake_config_testing_details[@]}" \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
diff --git a/ci/cloudbuild/builds/grpc-at-head.sh b/ci/cloudbuild/builds/grpc-at-head.sh
index d9318cd45c389..1082a188d63ba 100755
--- a/ci/cloudbuild/builds/grpc-at-head.sh
+++ b/ci/cloudbuild/builds/grpc-at-head.sh
@@ -20,10 +20,11 @@ source "$(dirname "$0")/../../lib/init.sh"
 source module ci/cloudbuild/builds/lib/bazel.sh
 source module ci/cloudbuild/builds/lib/cloudcxxrc.sh
 source module ci/cloudbuild/builds/lib/integration.sh
+source module ci/etc/quickstart-config.sh
 
 rm -fr /h/grpc && git -C /h clone -q --depth 1 https://github.com/grpc/grpc.git
 rm -fr /h/protobuf && mkdir -p /h/protobuf &&
-  curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v25.0.tar.gz |
+  curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v31.1.tar.gz |
   tar -C /h/protobuf -xzf - --strip-components=1
 
 mapfile -t args < <(bazel::common_args)
@@ -35,3 +36,9 @@ bazel test "${args[@]}" --test_tag_filters=-integration-test "${BAZEL_TARGETS[@]
 
 mapfile -t integration_args < <(integration::bazel_args)
 integration::bazel_with_emulators test "${args[@]}" "${integration_args[@]}"
+
+for lib in $(quickstart::libraries); do
+  io::log_h2 "Building Bazel quickstart for ${lib} using MODULE"
+  USE_BAZEL_VERSION=8.5.1 io::run env -C "${PROJECT_ROOT}/google/cloud/${lib}/quickstart" \
+    bazel build --noenable_workspace --enable_bzlmod "${args[@]}" :quickstart
+done
diff --git a/ci/cloudbuild/builds/lib/quickstart.sh b/ci/cloudbuild/builds/lib/quickstart.sh
index a8f287157e386..274b9e1cdc685 100644
--- a/ci/cloudbuild/builds/lib/quickstart.sh
+++ b/ci/cloudbuild/builds/lib/quickstart.sh
@@ -38,7 +38,7 @@ function cleanup() {
   io::log_h2 "cleanup on EXIT with exit_status=${exit_status}"
   if ((exit_status != 0)); then
     io::run find . -name 'core'
-    gdb --exec="${quickstart_program}" --core=./core --eval-command="bt full"
+    io::run gdb --exec="${quickstart_program}" --core=./core --eval-command="thread apply all bt"
   fi
 }
 
diff --git a/ci/cloudbuild/dockerfiles/demo-debian-bookworm.Dockerfile b/ci/cloudbuild/dockerfiles/demo-debian-bookworm.Dockerfile
index cc397b4dca53e..74c5752c79754 100644
--- a/ci/cloudbuild/dockerfiles/demo-debian-bookworm.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-debian-bookworm.Dockerfile
@@ -23,7 +23,7 @@ ARG NCPU=4
 RUN apt-get update && \
     apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential ca-certificates cmake curl git \
-        gcc g++ m4 make ninja-build pkg-config tar wget zlib1g-dev
+        gcc g++ m4 make ninja-build pkg-config tar wget zlib1g-dev libc6-dbg
 # ```
 
 # Install the development packages for direct `google-cloud-cpp` dependencies:
@@ -62,7 +62,7 @@ WORKDIR /var/tmp/build/abseil-cpp
 RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -79,7 +79,7 @@ WORKDIR /var/tmp/build/protobuf
 RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -97,7 +97,7 @@ WORKDIR /var/tmp/build/opentelemetry-cpp
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
@@ -117,7 +117,7 @@ WORKDIR /var/tmp/build/c-ares
 RUN curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -S . -B cmake-out && \
     cmake --build cmake-out --target install && \
@@ -130,7 +130,7 @@ RUN curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.t
 WORKDIR /var/tmp/build/re2
 RUN curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -145,7 +145,7 @@ WORKDIR /var/tmp/build/grpc
 RUN curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
diff --git a/ci/cloudbuild/dockerfiles/demo-debian-bullseye.Dockerfile b/ci/cloudbuild/dockerfiles/demo-debian-bullseye.Dockerfile
index af638951d5552..d1b311d689a8a 100644
--- a/ci/cloudbuild/dockerfiles/demo-debian-bullseye.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-debian-bullseye.Dockerfile
@@ -24,7 +24,7 @@ RUN apt-get update && \
     apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential ca-certificates curl git \
         gcc g++ libc-ares-dev libc-ares2 libcurl4-openssl-dev \
-        libssl-dev m4 make ninja-build pkg-config tar wget zlib1g-dev
+        libssl-dev m4 make ninja-build pkg-config tar wget zlib1g-dev libc6-dbg
 # ```
 
 # #### Install CMake v3.22
@@ -40,7 +40,7 @@ WORKDIR /var/tmp/build/abseil-cpp
 RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -71,7 +71,7 @@ WORKDIR /var/tmp/build/protobuf
 RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -91,7 +91,7 @@ RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz
 WORKDIR /var/tmp/build/re2
 RUN curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -107,7 +107,7 @@ WORKDIR /var/tmp/build/grpc
 RUN curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
@@ -130,7 +130,7 @@ WORKDIR /var/tmp/build/opentelemetry-cpp
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
diff --git a/ci/cloudbuild/dockerfiles/demo-fedora.Dockerfile b/ci/cloudbuild/dockerfiles/demo-fedora.Dockerfile
index 196c9a0e14126..302e5b7bf392a 100644
--- a/ci/cloudbuild/dockerfiles/demo-fedora.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-fedora.Dockerfile
@@ -22,7 +22,8 @@ ARG NCPU=4
 # ```bash
 RUN dnf makecache && \
     dnf install -y cmake curl findutils gcc-c++ git make ninja-build \
-        patch unzip tar wget zip
+        patch unzip tar wget zip dnf-utils
+RUN dnf makecache && dnf debuginfo-install -y glibc
 # ```
 
 # Fedora:40 includes packages, with recent enough versions, for most of the
diff --git a/ci/cloudbuild/dockerfiles/demo-rockylinux-9.Dockerfile b/ci/cloudbuild/dockerfiles/demo-rockylinux-9.Dockerfile
index a2ddb2fa8961c..7b795b7d4a574 100644
--- a/ci/cloudbuild/dockerfiles/demo-rockylinux-9.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-rockylinux-9.Dockerfile
@@ -27,7 +27,9 @@ RUN dnf makecache && \
     dnf makecache && \
     dnf install -y cmake findutils gcc-c++ git make openssl-devel \
         patch zlib-devel libcurl-devel c-ares-devel tar wget which \
-        autoconf automake libtool binutils
+        autoconf automake libtool binutils dnf-utils
+RUN dnf makecache && dnf debuginfo-install -y glibc
+
 # ```
 
 # Set some useful environment variables.
@@ -73,7 +75,7 @@ WORKDIR /var/tmp/build/abseil-cpp
 RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -94,7 +96,7 @@ WORKDIR /var/tmp/build/protobuf
 RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -115,7 +117,7 @@ RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz
 WORKDIR /var/tmp/build/re2
 RUN curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -137,7 +139,7 @@ RUN curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_CXX_STANDARD=17 \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
         -DgRPC_BUILD_TESTS=OFF \
@@ -165,7 +167,7 @@ WORKDIR /var/tmp/build/json
 RUN curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DBUILD_SHARED_LIBS=yes \
       -DBUILD_TESTING=OFF \
       -DJSON_BuildTests=OFF \
@@ -181,8 +183,8 @@ WORKDIR /var/tmp/build/opentelemetry-cpp
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-      -DCMAKE_CXX_STANDARD=17 \
+        -DCMAKE_BUILD_TYPE=Debug \
+        -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
         -DWITH_STL=CXX17 \
diff --git a/ci/cloudbuild/dockerfiles/demo-ubuntu-24.04.Dockerfile b/ci/cloudbuild/dockerfiles/demo-ubuntu-24.04.Dockerfile
index 5de8cd219e19c..4a60238f3f675 100644
--- a/ci/cloudbuild/dockerfiles/demo-ubuntu-24.04.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-ubuntu-24.04.Dockerfile
@@ -23,7 +23,7 @@ ARG NCPU=4
 ENV DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && \
     apt-get --no-install-recommends install -y apt-transport-https apt-utils \
-        cmake ca-certificates curl git gcc g++ m4 make tar
+        cmake ca-certificates curl git gcc g++ m4 make tar libc6-dbg
 # ```
 
 # Ubuntu:24 includes packages for most of the direct dependencies of
@@ -66,7 +66,7 @@ WORKDIR /var/tmp/build/abseil-cpp
 RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
       -S . -B cmake-out && \
@@ -81,7 +81,7 @@ WORKDIR /var/tmp/build/protobuf
 RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -98,7 +98,7 @@ WORKDIR /var/tmp/build/opentelemetry-cpp
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
         -DWITH_STL=CXX17 \
@@ -117,7 +117,7 @@ WORKDIR /var/tmp/build/c-ares
 RUN curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -S . -B cmake-out && \
     cmake --build cmake-out --target install && \
@@ -130,7 +130,7 @@ RUN curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.t
 WORKDIR /var/tmp/build/re2
 RUN curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -145,7 +145,7 @@ WORKDIR /var/tmp/build/grpc
 RUN curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=ON \
         -DgRPC_INSTALL=ON \
diff --git a/ci/cloudbuild/dockerfiles/demo-ubuntu-jammy.Dockerfile b/ci/cloudbuild/dockerfiles/demo-ubuntu-jammy.Dockerfile
index 289c65b38c2bd..5716b5500acad 100644
--- a/ci/cloudbuild/dockerfiles/demo-ubuntu-jammy.Dockerfile
+++ b/ci/cloudbuild/dockerfiles/demo-ubuntu-jammy.Dockerfile
@@ -25,7 +25,7 @@ RUN apt-get update && \
     apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential cmake ca-certificates curl git \
         gcc g++ libc-ares-dev libc-ares2 libcurl4-openssl-dev libre2-dev \
-        libssl-dev m4 make pkg-config tar wget zlib1g-dev
+        libssl-dev m4 make pkg-config tar wget zlib1g-dev libc6-dbg
 # ```
 
 # #### Abseil
@@ -35,7 +35,7 @@ WORKDIR /var/tmp/build/abseil-cpp
 RUN curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -55,7 +55,7 @@ WORKDIR /var/tmp/build/protobuf
 RUN curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -76,7 +76,7 @@ WORKDIR /var/tmp/build/grpc
 RUN curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
@@ -105,7 +105,7 @@ WORKDIR /var/tmp/build/json
 RUN curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DBUILD_SHARED_LIBS=yes \
       -DBUILD_TESTING=OFF \
       -DJSON_BuildTests=OFF \
@@ -121,7 +121,7 @@ WORKDIR /var/tmp/build/opentelemetry-cpp
 RUN curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
diff --git a/doc/packaging.md b/doc/packaging.md
index d4d6b22d4e012..4bbfb82114fe9 100644
--- a/doc/packaging.md
+++ b/doc/packaging.md
@@ -212,7 +212,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -235,7 +235,8 @@ Install the minimal development tools:
 ```bash
 sudo dnf makecache && \
 sudo dnf install -y cmake curl findutils gcc-c++ git make ninja-build \
-        patch unzip tar wget zip
+        patch unzip tar wget zip dnf-utils
+sudo dnf makecache && sudo dnf debuginfo-install -y glibc
 ```
 
 Fedora:40 includes packages, with recent enough versions, for most of the direct
@@ -303,7 +304,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -387,7 +388,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -411,7 +412,7 @@ Install the minimal development tools, libcurl, OpenSSL and libc-ares:
 export DEBIAN_FRONTEND=noninteractive
 sudo apt-get update && \
 sudo apt-get --no-install-recommends install -y apt-transport-https apt-utils \
-        cmake ca-certificates curl git gcc g++ m4 make tar
+        cmake ca-certificates curl git gcc g++ m4 make tar libc6-dbg
 ```
 
 Ubuntu:24 includes packages for most of the direct dependencies of
@@ -454,7 +455,7 @@ mkdir -p $HOME/Downloads/abseil-cpp && cd $HOME/Downloads/abseil-cpp
 curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
       -S . -B cmake-out && \
@@ -469,7 +470,7 @@ mkdir -p $HOME/Downloads/protobuf && cd $HOME/Downloads/protobuf
 curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -486,7 +487,7 @@ mkdir -p $HOME/Downloads/opentelemetry-cpp && cd $HOME/Downloads/opentelemetry-c
 curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
         -DWITH_STL=CXX17 \
@@ -505,7 +506,7 @@ mkdir -p $HOME/Downloads/c-ares && cd $HOME/Downloads/c-ares
 curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -S . -B cmake-out && \
 sudo cmake --build cmake-out --target install && \
@@ -518,7 +519,7 @@ sudo ldconfig
 mkdir -p $HOME/Downloads/re2 && cd $HOME/Downloads/re2
 curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -533,7 +534,7 @@ mkdir -p $HOME/Downloads/grpc && cd $HOME/Downloads/grpc
 curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=ON \
         -DgRPC_INSTALL=ON \
@@ -559,7 +560,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -585,7 +586,7 @@ sudo apt-get update && \
 sudo apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential cmake ca-certificates curl git \
         gcc g++ libc-ares-dev libc-ares2 libcurl4-openssl-dev libre2-dev \
-        libssl-dev m4 make pkg-config tar wget zlib1g-dev
+        libssl-dev m4 make pkg-config tar wget zlib1g-dev libc6-dbg
 ```
 
 #### Abseil
@@ -595,7 +596,7 @@ mkdir -p $HOME/Downloads/abseil-cpp && cd $HOME/Downloads/abseil-cpp
 curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -615,7 +616,7 @@ mkdir -p $HOME/Downloads/protobuf && cd $HOME/Downloads/protobuf
 curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -636,7 +637,7 @@ mkdir -p $HOME/Downloads/grpc && cd $HOME/Downloads/grpc
 curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
@@ -665,7 +666,7 @@ mkdir -p $HOME/Downloads/json && cd $HOME/Downloads/json
 curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DBUILD_SHARED_LIBS=yes \
       -DBUILD_TESTING=OFF \
       -DJSON_BuildTests=OFF \
@@ -681,7 +682,7 @@ mkdir -p $HOME/Downloads/opentelemetry-cpp && cd $HOME/Downloads/opentelemetry-c
 curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
@@ -702,7 +703,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -726,7 +727,7 @@ Install the minimal development tools.
 sudo apt-get update && \
 sudo apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential ca-certificates cmake curl git \
-        gcc g++ m4 make ninja-build pkg-config tar wget zlib1g-dev
+        gcc g++ m4 make ninja-build pkg-config tar wget zlib1g-dev libc6-dbg
 ```
 
 Install the development packages for direct `google-cloud-cpp` dependencies:
@@ -765,7 +766,7 @@ mkdir -p $HOME/Downloads/abseil-cpp && cd $HOME/Downloads/abseil-cpp
 curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -782,7 +783,7 @@ mkdir -p $HOME/Downloads/protobuf && cd $HOME/Downloads/protobuf
 curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -800,7 +801,7 @@ mkdir -p $HOME/Downloads/opentelemetry-cpp && cd $HOME/Downloads/opentelemetry-c
 curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
@@ -820,7 +821,7 @@ mkdir -p $HOME/Downloads/c-ares && cd $HOME/Downloads/c-ares
 curl -fsSL https://github.com/c-ares/c-ares/archive/refs/tags/cares-1_17_1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -S . -B cmake-out && \
 sudo cmake --build cmake-out --target install && \
@@ -833,7 +834,7 @@ sudo ldconfig
 mkdir -p $HOME/Downloads/re2 && cd $HOME/Downloads/re2
 curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -848,7 +849,7 @@ mkdir -p $HOME/Downloads/grpc && cd $HOME/Downloads/grpc
 curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
@@ -873,7 +874,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -898,7 +899,7 @@ sudo apt-get update && \
 sudo apt-get --no-install-recommends install -y apt-transport-https apt-utils \
         automake build-essential ca-certificates curl git \
         gcc g++ libc-ares-dev libc-ares2 libcurl4-openssl-dev \
-        libssl-dev m4 make ninja-build pkg-config tar wget zlib1g-dev
+        libssl-dev m4 make ninja-build pkg-config tar wget zlib1g-dev libc6-dbg
 ```
 
 #### Install CMake v3.22
@@ -915,7 +916,7 @@ mkdir -p $HOME/Downloads/abseil-cpp && cd $HOME/Downloads/abseil-cpp
 curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -947,7 +948,7 @@ mkdir -p $HOME/Downloads/protobuf && cd $HOME/Downloads/protobuf
 curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -967,7 +968,7 @@ planning to use pkg-config.
 mkdir -p $HOME/Downloads/re2 && cd $HOME/Downloads/re2
 curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -983,7 +984,7 @@ mkdir -p $HOME/Downloads/grpc && cd $HOME/Downloads/grpc
 curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
@@ -1006,7 +1007,7 @@ mkdir -p $HOME/Downloads/opentelemetry-cpp && cd $HOME/Downloads/opentelemetry-c
 curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
@@ -1027,7 +1028,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \
@@ -1055,7 +1056,9 @@ sudo dnf install -y epel-release && \
 sudo dnf makecache && \
 sudo dnf install -y cmake findutils gcc-c++ git make openssl-devel \
         patch zlib-devel libcurl-devel c-ares-devel tar wget which \
-        autoconf automake libtool binutils
+        autoconf automake libtool binutils dnf-utils
+sudo dnf makecache && sudo dnf debuginfo-install -y glibc
+
 ```
 
 Set some useful environment variables.
@@ -1101,7 +1104,7 @@ mkdir -p $HOME/Downloads/abseil-cpp && cd $HOME/Downloads/abseil-cpp
 curl -fsSL https://github.com/abseil/abseil-cpp/archive/20250814.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
       -DABSL_BUILD_TESTING=OFF \
       -DBUILD_SHARED_LIBS=yes \
@@ -1122,7 +1125,7 @@ mkdir -p $HOME/Downloads/protobuf && cd $HOME/Downloads/protobuf
 curl -fsSL https://github.com/protocolbuffers/protobuf/archive/v33.1.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -Dprotobuf_BUILD_TESTS=OFF \
@@ -1143,7 +1146,7 @@ planning to use pkg-config.
 mkdir -p $HOME/Downloads/re2 && cd $HOME/Downloads/re2
 curl -fsSL https://github.com/google/re2/archive/2025-07-22.tar.gz | \
     tar -xzf - --strip-components=1 && \
-    cmake -DCMAKE_BUILD_TYPE=Release \
+    cmake -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=ON \
         -DRE2_BUILD_TESTING=OFF \
         -S . -B cmake-out && \
@@ -1165,7 +1168,7 @@ curl -fsSL https://github.com/grpc/grpc/archive/v1.76.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
         -DCMAKE_CXX_STANDARD=17 \
-        -DCMAKE_BUILD_TYPE=Release \
+        -DCMAKE_BUILD_TYPE=Debug \
         -DBUILD_SHARED_LIBS=yes \
         -DgRPC_INSTALL=ON \
         -DgRPC_BUILD_TESTS=OFF \
@@ -1193,7 +1196,7 @@ mkdir -p $HOME/Downloads/json && cd $HOME/Downloads/json
 curl -fsSL https://github.com/nlohmann/json/archive/v3.11.3.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-      -DCMAKE_BUILD_TYPE=Release \
+      -DCMAKE_BUILD_TYPE=Debug \
       -DBUILD_SHARED_LIBS=yes \
       -DBUILD_TESTING=OFF \
       -DJSON_BuildTests=OFF \
@@ -1209,8 +1212,8 @@ mkdir -p $HOME/Downloads/opentelemetry-cpp && cd $HOME/Downloads/opentelemetry-c
 curl -fsSL https://github.com/open-telemetry/opentelemetry-cpp/archive/v1.24.0.tar.gz | \
     tar -xzf - --strip-components=1 && \
     cmake \
-        -DCMAKE_BUILD_TYPE=Release \
-      -DCMAKE_CXX_STANDARD=17 \
+        -DCMAKE_BUILD_TYPE=Debug \
+        -DCMAKE_CXX_STANDARD=17 \
         -DBUILD_SHARED_LIBS=yes \
         -DWITH_EXAMPLES=OFF \
         -DWITH_STL=CXX17 \
@@ -1230,7 +1233,7 @@ We can now compile and install `google-cloud-cpp`:
 # Pick a location to install the artifacts, e.g., `/usr/local` or `/opt`
 PREFIX="${HOME}/google-cloud-cpp-installed"
 cmake -S . -B cmake-out \
-  -DCMAKE_BUILD_TYPE=Release \
+  -DCMAKE_BUILD_TYPE=Debug \
   -DCMAKE_CXX_STANDARD=17 \
   -DCMAKE_INSTALL_PREFIX="${PREFIX}" \
   -DBUILD_TESTING=OFF \