diff --git a/app/helpers/events_helper.rb b/app/helpers/events_helper.rb
index 6ee25f658..c7aa72715 100644
--- a/app/helpers/events_helper.rb
+++ b/app/helpers/events_helper.rb
@@ -3,24 +3,30 @@ module EventsHelper
     case event_type
     when "added"
       events = day_timeline.events.where(action: [ "card_published", "card_reopened" ])
+      full_events_count = events.count
       {
-        title: event_column_title("Added", events.count, day_timeline.day),
+        title: event_column_title("Added", full_events_count, day_timeline.day),
         index: 1,
-        events: events
+        events: events.limit(100).load,
+        full_events_count: full_events_count
       }
     when "closed"
       events = day_timeline.events.where(action: "card_closed")
+      full_events_count = events.count
       {
-        title: event_column_title("Closed", events.count, day_timeline.day),
+        title: event_column_title("Closed", full_events_count, day_timeline.day),
         index: 3,
-        events: events
+        events: events.limit(100).load,
+        full_events_count: full_events_count
       }
     else
       events = day_timeline.events.where.not(action: [ "card_published", "card_closed", "card_reopened" ])
+      full_events_count = events.count
       {
-        title: event_column_title("Updated", events.count, day_timeline.day),
+        title: event_column_title("Updated", full_events_count, day_timeline.day),
         index: 2,
-        events: events
+        events: events.limit(100).load,
+        full_events_count: full_events_count
       }
     end
   end
diff --git a/app/views/events/day_timeline/_column.html.erb b/app/views/events/day_timeline/_column.html.erb
index a1186da6b..ab7f0aa15 100644
--- a/app/views/events/day_timeline/_column.html.erb
+++ b/app/views/events/day_timeline/_column.html.erb
@@ -8,4 +8,8 @@
       <%= local_datetime_tag events.first.created_at, class: "event__timestamp txt-small translucent" %>
     <% end %>
   <% end %>
+
+  <% if column[:events].count < column[:full_events_count] %>
+    <div class="pad-inline pad-block-half margin-block-end-half fill-highlight txt-x-small margin-inline-half border-radius">Showing the first 100 items (<%= column[:full_events_count] - column[:events].count %> are hidden)</div
+  <% end %>
 </div>
diff --git a/bin/setup b/bin/setup
index 90d68e323..61ab69995 100755
--- a/bin/setup
+++ b/bin/setup
@@ -62,6 +62,9 @@ if which pacman >/dev/null 2>&1; then
   fi
 fi
 
+# Ensure gh-signoff is installed and up to date
+step "Set up gh-signoff" bash -c "gh extension install basecamp/gh-signoff || gh extension upgrade basecamp/gh-signoff"
+
 bundle config set --local auto_install true
 step "Installing RubyGems" bundle install
 
diff --git a/test/system/smoke_test.rb b/test/system/smoke_test.rb
index 870438f72..8c80c165e 100644
--- a/test/system/smoke_test.rb
+++ b/test/system/smoke_test.rb
@@ -61,8 +61,8 @@ class SmokeTest < ApplicationSystemTestCase
 
     def assert_image_figure_attachment(content_type: "image/png", caption:)
       assert_figure_attachment(content_type: content_type) do
-        assert_selector("img[src*='/rails/active_storage']")
-        assert_selector "figcaption input[placeholder='#{caption}']"
+        assert_selector "img[src*='/rails/active_storage']", wait: 5
+        assert_selector "figcaption input[placeholder='#{caption}']", wait: 5
       end
     end
 end