diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5cae564e4d..858a2cafdc1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -477,11 +477,11 @@ jobs:
             timeout-minutes: 120
             file-env: './ci/test/00_setup_env_native_previous_releases.sh'
 
-          - name: 'CentOS, depends, gui'
+          - name: 'Alpine (musl), depends, gui'
             cirrus-runner: 'ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04-lg'
             fallback-runner: 'ubuntu-24.04'
             timeout-minutes: 120
-            file-env: './ci/test/00_setup_env_native_centos.sh'
+            file-env: './ci/test/00_setup_env_native_alpine_musl.sh'
 
           - name: 'tidy'
             cirrus-runner: 'ghcr.io/cirruslabs/ubuntu-runner-amd64:24.04-md'
diff --git a/ci/test/00_setup_env_native_centos.sh b/ci/test/00_setup_env_native_alpine_musl.sh
similarity index 57%
rename from ci/test/00_setup_env_native_centos.sh
rename to ci/test/00_setup_env_native_alpine_musl.sh
index 998ddaf45f8..094709ff828 100755
--- a/ci/test/00_setup_env_native_centos.sh
+++ b/ci/test/00_setup_env_native_alpine_musl.sh
@@ -6,10 +6,10 @@
 
 export LC_ALL=C.UTF-8
 
-export CONTAINER_NAME=ci_native_centos
-export CI_IMAGE_NAME_TAG="quay.io/centos/centos:stream10"
-export CI_BASE_PACKAGES="gcc-c++ glibc-devel libstdc++-devel ccache make ninja-build git python3 python3-pip which patch xz procps-ng rsync coreutils bison e2fsprogs cmake dash"
-export PIP_PACKAGES="pyzmq pycapnp"
+export CONTAINER_NAME=ci_native_alpine_musl
+export CI_IMAGE_NAME_TAG="mirror.gcr.io/alpine:3.22"
+export CI_BASE_PACKAGES="build-base musl-dev pkgconf curl ccache make ninja git python3 py3-pip which patch xz procps rsync util-linux bison e2fsprogs cmake dash linux-headers"
+export PIP_PACKAGES="--break-system-packages pyzmq pycapnp"
 export DEP_OPTS="DEBUG=1"
 export GOAL="install"
 export BITCOIN_CONFIG="\
diff --git a/ci/test/01_base_install.sh b/ci/test/01_base_install.sh
index ce460987901..144b9ab253f 100755
--- a/ci/test/01_base_install.sh
+++ b/ci/test/01_base_install.sh
@@ -32,16 +32,17 @@ if [ -n "${APT_LLVM_V}" ]; then
   )
 fi
 
-if [[ $CI_IMAGE_NAME_TAG == *centos* ]]; then
-  bash -c "dnf -y install epel-release"
-  # The ninja-build package is available in the CRB repository.
-  bash -c "dnf -y --allowerasing --enablerepo crb install $CI_BASE_PACKAGES $PACKAGES"
+if [[ $CI_IMAGE_NAME_TAG == *alpine* ]]; then
+  ${CI_RETRY_EXE} apk update
+  # shellcheck disable=SC2086
+  ${CI_RETRY_EXE} apk add --no-cache $CI_BASE_PACKAGES $PACKAGES
 elif [ "$CI_OS_NAME" != "macos" ]; then
   if [[ -n "${APPEND_APT_SOURCES_LIST}" ]]; then
     echo "${APPEND_APT_SOURCES_LIST}" >> /etc/apt/sources.list
   fi
   ${CI_RETRY_EXE} apt-get update
-  ${CI_RETRY_EXE} bash -c "apt-get install --no-install-recommends --no-upgrade -y $PACKAGES $CI_BASE_PACKAGES"
+  # shellcheck disable=SC2086
+  ${CI_RETRY_EXE} apt-get install --no-install-recommends --no-upgrade -y $PACKAGES $CI_BASE_PACKAGES
 fi
 
 if [ -n "${APT_LLVM_V}" ]; then
diff --git a/ci/test/03_test_script.sh b/ci/test/03_test_script.sh
index 05e4d8fd54a..9353f624294 100755
--- a/ci/test/03_test_script.sh
+++ b/ci/test/03_test_script.sh
@@ -99,8 +99,8 @@ else
 fi
 
 if [ -z "$NO_DEPENDS" ]; then
-  if [[ $CI_IMAGE_NAME_TAG == *centos* ]]; then
-    SHELL_OPTS="CONFIG_SHELL=/bin/dash"
+  if [[ $CI_IMAGE_NAME_TAG == *alpine* ]]; then
+    SHELL_OPTS="CONFIG_SHELL=/usr/bin/dash"
   else
     SHELL_OPTS="CONFIG_SHELL="
   fi
diff --git a/ci/test_imagefile b/ci/test_imagefile
index f9cf3187a25..a0e1714ed5f 100644
--- a/ci/test_imagefile
+++ b/ci/test_imagefile
@@ -17,4 +17,7 @@ ENV BASE_ROOT_DIR=${BASE_ROOT_DIR}
 COPY ./ci/retry/retry /usr/bin/retry
 COPY ./ci/test/00_setup_env.sh ./${FILE_ENV} ./ci/test/01_base_install.sh /ci_container_base/ci/test/
 
+# Bash is required, so install it when missing
+RUN sh -c "bash -c 'true' || ( apk update && apk add --no-cache bash )"
+
 RUN ["bash", "-c", "cd /ci_container_base/ && set -o errexit && source ./ci/test/00_setup_env.sh && ./ci/test/01_base_install.sh"]
diff --git a/src/qt/forms/debugwindow.ui b/src/qt/forms/debugwindow.ui
index d1c627bb3ce..005f1517f4e 100644
--- a/src/qt/forms/debugwindow.ui
+++ b/src/qt/forms/debugwindow.ui
@@ -210,7 +210,7 @@
         </widget>
        </item>
        <item row="7" column="1" colspan="2">
-        <widget class="QLabel" name="networkName">
+        <widget class="NetworkName" name="networkName">
          <property name="cursor">
           <cursorShape>IBeamCursor</cursorShape>
          </property>
@@ -1872,6 +1872,11 @@
    <class>PlainCopyTextEdit</class>
    <extends>QTextEdit</extends>
   </customwidget>
+  <customwidget>
+   <class>NetworkName</class>
+   <extends>QLabel</extends>
+   <header>qt/rpcconsole.h</header>
+  </customwidget>
  </customwidgets>
  <resources>
   <include location="../bitcoin.qrc"/>
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 958c82fda22..66128dcf6a6 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -57,6 +57,9 @@ const int INITIAL_TRAFFIC_GRAPH_MINS = 30;
 const QSize FONT_RANGE(4, 40);
 const char fontSizeSettingsKey[] = "consoleFontSize";
 
+const std::string DEFAULT_CHALLENGE_STRING =
+    "512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae";
+
 const struct {
     const char *url;
     const char *source;
@@ -717,6 +720,39 @@ void RPCConsole::setClientModel(ClientModel *model, int bestblock_height, int64_
         ui->blocksDir->setText(model->blocksDir());
         ui->startupTime->setText(model->formatClientStartupTime());
         ui->networkName->setText(QString::fromStdString(Params().GetChainTypeString()));
+        ui->networkName->setWordWrap(true);
+
+        if (Params().GetChainTypeString() == "signet") {
+            std::vector<uint8_t> vChallenge = Params().GetConsensus().signet_challenge;
+            std::string challengeString = HexStr(vChallenge);
+            if (challengeString != DEFAULT_CHALLENGE_STRING) {
+                LogDebug(BCLog::QT, "rpcconsole:challengeString=%s\n", challengeString);
+                if (challengeString.length() > 16) { // a sane minimum
+                    std::string challenge_fingerprint = challengeString.substr(0, 8);
+                    const QString title = tr("Node window - [signet] (%1)").arg(QString::fromStdString(challenge_fingerprint));
+                    // display fingerprint in Node window title
+                    this->setWindowTitle(title);
+                } else {
+                    // A trivial challenge is supported. Example: signetchallenge=51
+                    std::string challenge_fingerprint = challengeString.substr(0, challengeString.length());
+                    const QString title = tr("Node window - [signet] (%1)").arg(QString::fromStdString(challenge_fingerprint));
+                    // display fingerprint in Node window title
+                    this->setWindowTitle(title);
+                }
+                if (challengeString.length() > (size_t)ui->networkName->width()) {
+                    challengeString.insert(0, "\n");  // break after Signet:
+                    challengeString.insert(65, "\n"); // then split at (130/2)
+                }
+                ui->networkName->setToolTip(
+                    tr("%1").arg(QString::fromStdString(challengeString)));
+                ui->networkName->setText(
+                    tr("%1\nChallenge: %2").arg("Signet").arg(QString::fromStdString(challengeString)));
+            } else {
+                ui->networkName->setText(tr("Signet: Default"));
+                ui->networkName->setToolTip(QString());
+                this->setWindowTitle(tr("[signet] Default"));
+            }
+        }
 
         //Setup autocomplete and attach it
         QStringList wordList;
diff --git a/src/qt/rpcconsole.h b/src/qt/rpcconsole.h
index fe2955cc26b..a03cf595214 100644
--- a/src/qt/rpcconsole.h
+++ b/src/qt/rpcconsole.h
@@ -15,6 +15,8 @@
 
 #include <QByteArray>
 #include <QCompleter>
+#include <QFontMetrics>
+#include <QLabel>
 #include <QMimeData>
 #include <QTextDocumentFragment>
 #include <QTextEdit>
@@ -210,4 +212,56 @@ class PlainCopyTextEdit : public QTextEdit {
     }
 };
 
+class NetworkName : public QLabel
+{
+    Q_OBJECT
+
+public:
+    explicit NetworkName(QWidget *parent = nullptr) : QLabel(parent) {}
+
+    void setText(const QString& text) {
+        m_fullText = text;
+        recalculateElidedText();
+    }
+
+    const QString& fullText() const { return m_fullText; }
+    QString selectedText() const {
+        return m_fullText;
+    }
+
+protected:
+    void resizeEvent(QResizeEvent *event) override {
+        QLabel::resizeEvent(event);
+        recalculateElidedText();
+    }
+
+    // Provide the full challenge when Copy&Paste
+    QMimeData* createMimeDataFromSelection() const {
+        auto md = new QMimeData();
+        md->setText(m_fullText);
+        return md;
+    }
+
+private:
+    QString m_fullText;
+
+    void recalculateElidedText() {
+        if (m_fullText.isEmpty()) {
+            QLabel::setText(QString());
+            return;
+        }
+
+        QFontMetrics fm(font());
+        int availableWidth = width()-1;
+        //int availableWidth = contentsRect().width()-1;
+
+        QString elidedText = fm.elidedText(m_fullText, Qt::ElideMiddle, availableWidth);
+
+        if (QLabel::text() != elidedText) {
+            QLabel::setText(elidedText);
+            //QLabel::setText(m_fullText);
+        }
+    }
+};
+
 #endif // BITCOIN_QT_RPCCONSOLE_H