diff --git a/src/MainWindow.cpp b/src/MainWindow.cpp
index 2b49f01..d75d9ff 100644
--- a/src/MainWindow.cpp
+++ b/src/MainWindow.cpp
@@ -121,32 +121,9 @@ MainWindow::MainWindow(QWidget *parent)
   connect(m_authManager, &AuthManager::signedIn, m_authDialog, &AuthDialog::reset);
   connect(m_authManager, &AuthManager::signedOut, m_authDialog, &AuthDialog::reset);
   connect(m_authManager, &AuthManager::signedOut, m_authDialog, &AuthDialog::show);
-  connect(m_authManager, &AuthManager::signedIn, this, [this]() {
-    m_store->setCurrentUserEmail(m_authManager->sessionData()->email);
-    m_store->loadStartupData();
-  });
-  connect(m_store, &Store::startupDataLoaded, this, [this]() {
-    m_treeView->expandAll();
-  });
-  connect(m_store, &Store::particleUpdated, this, [this](const QString &, const QString &particleId) {
-    if (particleId == m_selectedParticleId)
-    {
-      const Particle *particle = m_store->particleById(particleId);
-      if (particle && !particle->ackedByEmails.empty())
-      {
-        QStringList acked;
-        for (const auto &email : particle->ackedByEmails)
-        {
-          acked.append(email);
-        }
-        m_ackLabel->setText("Acked by: " + acked.join(", "));
-      }
-      else
-      {
-        m_ackLabel->setText("");
-      }
-    }
-  });
+  connect(m_authManager, &AuthManager::signedIn, this, &MainWindow::onSignedIn);
+  connect(m_store, &Store::startupDataLoaded, m_treeView, &QTreeView::expandAll);
+  connect(m_store, &Store::particleUpdated, this, &MainWindow::onParticleUpdated);
 
   // DocumentSend toolbar button opens text input dialog
   connect(m_sendTextButton, &QToolButton::clicked, this, &MainWindow::showTextInputDialog);
@@ -157,56 +134,11 @@ MainWindow::MainWindow(QWidget *parent)
 
   // "New stream" button
   m_createStreamDialog = new CreateStreamDialog(this);
-  connect(m_newStreamButton, &QPushButton::clicked, this, [this]() {
-    if (m_selectedNetworkId.isEmpty())
-      return;
-    const Network *network = m_store->networkById(m_selectedNetworkId);
-    if (network)
-      m_createStreamDialog->setNetworkMembers(network->members);
-    m_createStreamDialog->show();
-    m_createStreamDialog->raise();
-    m_createStreamDialog->activateWindow();
-  });
-  connect(m_createStreamDialog, &CreateStreamDialog::streamRequested, this,
-          [this](const QString &name, const QString &visibility, const QStringList &members) {
-            m_store->createStream(m_selectedNetworkId, name, "", visibility, members);
-          });
+  connect(m_newStreamButton, &QPushButton::clicked, this, &MainWindow::onNewStreamClicked);
+  connect(m_createStreamDialog, &CreateStreamDialog::streamRequested, this, &MainWindow::onCreateStreamRequested);
 
   // "Add members" toolbar button (ListAdd icon in right sidebar)
-  connect(m_addMembersButton, &QToolButton::clicked, this, [this]() {
-    if (m_selectedStreamId.isEmpty() || m_selectedNetworkId.isEmpty())
-      return;
-    const Network *network = m_store->networkById(m_selectedNetworkId);
-    const Stream *stream = m_store->streamById(m_selectedStreamId);
-    if (!network || !stream)
-      return;
-
-    MemberPickerDialog picker("Add Members", this);
-    picker.setMembers(network->members, stream->memberEmails);
-
-    if (picker.exec() == QDialog::Accepted)
-    {
-      QStringList emails = picker.selectedEmails();
-      if (!emails.isEmpty())
-      {
-        auto *op = m_store->addStreamMembers(m_selectedStreamId, emails);
-        connect(op, &Operation::success, this, [this](const QJsonDocument &) {
-          auto *fetchOp = m_store->fetchStream(m_selectedStreamId);
-          connect(fetchOp, &Operation::success, this, [this](const QJsonDocument &) {
-            m_membersList->clear();
-            const Stream *s = m_store->streamById(m_selectedStreamId);
-            if (s)
-            {
-              for (const QString &email : s->memberEmails)
-              {
-                m_membersList->addItem(email.split("@")[0]);
-              }
-            }
-          });
-        });
-      }
-    }
-  });
+  connect(m_addMembersButton, &QToolButton::clicked, this, &MainWindow::onAddMembersClicked);
 
   m_authManager->tryRestoreSession();
 
@@ -468,26 +400,8 @@ void MainWindow::setupModels()
   m_splitter->setStretchFactor(3, 4);
   m_networkDetailWidget->hide();
 
-  // Push fresh data when networks change
-  connect(m_store, &Store::networksChanged, this, [this]() {
-    if (!m_selectedNetworkId.isEmpty() && m_networkDetailWidget->isVisible())
-    {
-      const Network *network = m_store->networkById(m_selectedNetworkId);
-      if (network)
-        m_networkDetailWidget->setNetwork(*network, m_authManager->sessionData() ? m_authManager->sessionData()->email : QString());
-      else
-        m_networkDetailWidget->clear();
-    }
-  });
-
-  // Handle add-member requests from the widget
-  connect(m_networkDetailWidget, &NetworkDetailWidget::addMemberRequested, this,
-          [this](const QString &networkId, const QString &email) {
-            auto *op = m_store->addNetworkMembers(networkId, {email});
-            connect(op, &Operation::success, this, [this, networkId](const QJsonDocument &) {
-              m_store->fetchNetwork(networkId);
-            });
-          });
+  connect(m_store, &Store::networksChanged, this, &MainWindow::onNetworksChanged);
+  connect(m_networkDetailWidget, &NetworkDetailWidget::addMemberRequested, this, &MainWindow::onAddNetworkMemberRequested);
 
   // Create and set tree model
   m_networkStreamModel = new NetworkStreamModel(m_store, this);
@@ -523,6 +437,118 @@ void MainWindow::setupModels()
   m_particlesView->installEventFilter(this);
 }
 
+void MainWindow::onSignedIn()
+{
+  m_store->setCurrentUserEmail(m_authManager->sessionData()->email);
+  m_store->loadStartupData();
+}
+
+void MainWindow::onParticleUpdated(const QString &streamId, const QString &particleId)
+{
+  Q_UNUSED(streamId);
+
+  if (particleId != m_selectedParticleId)
+    return;
+
+  const Particle *particle = m_store->particleById(particleId);
+  if (particle && !particle->ackedByEmails.empty())
+  {
+    QStringList acked;
+    for (const auto &email : particle->ackedByEmails)
+      acked.append(email);
+    m_ackLabel->setText("Acked by: " + acked.join(", "));
+  }
+  else
+  {
+    m_ackLabel->setText("");
+  }
+}
+
+void MainWindow::onNewStreamClicked()
+{
+  if (m_selectedNetworkId.isEmpty())
+  {
+    return;
+  }
+  const Network *network = m_store->networkById(m_selectedNetworkId);
+  if (network)
+  {
+    m_createStreamDialog->setNetworkMembers(network->members);
+  }
+  m_createStreamDialog->show();
+  m_createStreamDialog->raise();
+  m_createStreamDialog->activateWindow();
+}
+
+void MainWindow::onCreateStreamRequested(const QString &name, const QString &visibility, const QStringList &members)
+{
+  m_store->createStream(m_selectedNetworkId, name, "", visibility, members);
+}
+
+void MainWindow::onAddMembersClicked()
+{
+  if (m_selectedStreamId.isEmpty() || m_selectedNetworkId.isEmpty())
+  {
+    return;
+  }
+  const Network *network = m_store->networkById(m_selectedNetworkId);
+  const Stream *stream = m_store->streamById(m_selectedStreamId);
+  if (!network || !stream)
+  {
+    return;
+  }
+
+  MemberPickerDialog picker("Add Members", this);
+  picker.setMembers(network->members, stream->memberEmails);
+
+  if (picker.exec() == QDialog::Accepted)
+  {
+    QStringList emails = picker.selectedEmails();
+    if (!emails.isEmpty())
+    {
+      auto *op = m_store->addStreamMembers(m_selectedStreamId, emails);
+      connect(op, &Operation::success, this, [this](const QJsonDocument &) {
+        auto *fetchOp = m_store->fetchStream(m_selectedStreamId);
+        connect(fetchOp, &Operation::success, this, [this](const QJsonDocument &) {
+          m_membersList->clear();
+          const Stream *s = m_store->streamById(m_selectedStreamId);
+          if (s)
+          {
+            for (const QString &email : s->memberEmails)
+            {
+              m_membersList->addItem(email.split("@")[0]);
+            }
+          }
+        });
+      });
+    }
+  }
+}
+
+void MainWindow::onNetworksChanged()
+{
+  if (!m_selectedNetworkId.isEmpty() && m_networkDetailWidget->isVisible())
+  {
+    const Network *network = m_store->networkById(m_selectedNetworkId);
+    if (network)
+    {
+      m_networkDetailWidget->setNetwork(*network, m_authManager->sessionData() ? m_authManager->sessionData()->email : QString());
+    }
+    else
+    {
+      m_networkDetailWidget->clear();
+    }
+  }
+}
+
+void MainWindow::onAddNetworkMemberRequested(const QString &networkId, const QString &email)
+{
+  auto *op = m_store->addNetworkMembers(networkId, {email});
+  connect(op, &Operation::success, this, [this, networkId](const QJsonDocument &) {
+    m_store->fetchNetwork(networkId);
+  });
+}
+
 void MainWindow::onTreeSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected)
 {
   Q_UNUSED(deselected);
diff --git a/src/MainWindow.h b/src/MainWindow.h
index 5467477..5e20cfa 100644
--- a/src/MainWindow.h
+++ b/src/MainWindow.h
@@ -42,9 +42,16 @@ public:
 
 private slots:
   void on_exitButton_clicked();
-
   void on_settingsButton_clicked();
 
+  void onSignedIn();
+  void onParticleUpdated(const QString &streamId, const QString &particleId);
+  void onNewStreamClicked();
+  void onCreateStreamRequested(const QString &name, const QString &visibility, const QStringList &members);
+  void onAddMembersClicked();
+  void onNetworksChanged();
+  void onAddNetworkMemberRequested(const QString &networkId, const QString &email);
+
   void onTreeSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
   void onParticleSelectionChanged(const QItemSelection &selected, const QItemSelection &deselected);
   void onTextMessageSubmitted(const QString &text);