diff --git a/DESCRIPTION b/DESCRIPTION
index 31adedcaac..fa944e2344 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -64,11 +64,14 @@ Suggests:
     knitr (>= 1.42),
     mirai (>= 1.1.1),
     MultiAssayExperiment,
+    otel(>= 0.2.0),
+    otelsdk(>= 0.2.2),
     R6,
     renv (>= 1.0.11),
     rmarkdown (>= 2.23),
     roxy.shinylive,
     rvest (>= 1.0.0),
+    shiny (>= 1.12.1),
     shinytest2,
     shinyvalidate,
     testthat (>= 3.2.0),
diff --git a/R/module_nested_tabs.R b/R/module_nested_tabs.R
index 616096fc54..e0b29606b8 100644
--- a/R/module_nested_tabs.R
+++ b/R/module_nested_tabs.R
@@ -107,6 +107,10 @@ srv_teal_module <- function(id,
                             reporter = teal.reporter::Reporter$new(),
                             data_load_status = reactive("ok")) {
   moduleServer(id, function(input, output, session) {
+    observeEvent(input$active_module_id, {
+      otel::log_info(sprintf("The app current module is %s", input$active_module_id))
+    })
+
     .srv_teal_module(
       id = "nav",
       data = data,