diff --git a/Gemfile.lock b/Gemfile.lock
index 3bff3a4d..b1bc72cb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -41,7 +41,7 @@ GEM
     net-scp (4.0.0)
       net-ssh (>= 2.6.5, < 8.0.0)
     net-ssh (7.0.1)
-    nokogiri (1.13.10-arm64-darwin)
+    nokogiri (1.14.0.rc1-arm64-darwin)
       racc (~> 1.4)
     racc (1.6.2)
     rack (2.2.5)
diff --git a/lib/tasks/mrsk/app.rake b/lib/tasks/mrsk/app.rake
index 0e68090d..1e3afc9a 100644
--- a/lib/tasks/mrsk/app.rake
+++ b/lib/tasks/mrsk/app.rake
@@ -33,6 +33,24 @@ namespace :mrsk do
       end
     end
 
+    desc "Run app on servers (or start them if they've already been run)"
+    task :run do
+      MRSK_CONFIG.roles.each do |role|
+        on(MRSK_CONFIG.servers(role: role)) do |host|
+          begin
+            execute *app.run(role: role)
+          rescue SSHKit::Command::Failed => e
+            if e.message =~ /already in use/
+              puts "Container with same version already deployed on #{host}, starting that instead"
+              execute *app.start, host: host
+            else
+              raise
+            end
+          end
+        end
+      end
+    end
+
     desc "Start existing app on servers"
     task :start do
       on(MRSK_CONFIG.servers) { execute *app.start, raise_on_non_zero_exit: false }
diff --git a/test/test_helper.rb b/test/test_helper.rb
index f7a6ceb6..e317c412 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -1,6 +1,7 @@
 require "bundler/setup"
 require "active_support/test_case"
 require "active_support/testing/autorun"
+require "debug"
 
 ActiveSupport::LogSubscriber.logger = ActiveSupport::Logger.new(STDOUT) if ENV["VERBOSE"]