I do believe that OTP/MFA is now working.

Gemfile.lock

@@ -93,6 +93,7 @@ GEM
       rack-test (>= 0.6.3)
       regexp_parser (>= 1.5, < 3.0)
       xpath (~> 3.2)
+    chunky_png (1.4.0)
     concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
     crass (1.0.6)
@@ -212,6 +213,10 @@ GEM
       railties (>= 5.2)
     rexml (3.2.6)
     rotp (6.3.0)
+    rqrcode (2.2.0)
+      chunky_png (~> 1.0)
+      rqrcode_core (~> 1.0)
+    rqrcode_core (1.2.0)
     rubyzip (2.3.2)
     selenium-webdriver (4.20.1)
       base64 (~> 0.2)
@@ -266,6 +271,7 @@ DEPENDENCIES
   mysql2 (~> 0.5)
   puma (~> 6.0)
   rails (= 7.1.3.3)
+  rqrcode
   selenium-webdriver
   sprockets-rails
   stimulus-rails