diff --git a/doc/common/_static/js/custom.js b/doc/common/_static/js/ide.js
similarity index 68%
rename from doc/common/_static/js/custom.js
rename to doc/common/_static/js/ide.js
index 1163a38..1b1a459 100644
--- a/doc/common/_static/js/custom.js
+++ b/doc/common/_static/js/ide.js
@@ -1,3 +1,4 @@
+// Since Pybricks Code is an "app", all external links get opened in new tab/window
 // https://stackoverflow.com/a/62742435/1976323
 $(document).ready(function () {
     $('a[href^="http://"], a[href^="https://"]').not('a[class*=internal]').attr('target', '_blank');
diff --git a/doc/common/conf.py b/doc/common/conf.py
index c96da1b..4147d0e 100644
--- a/doc/common/conf.py
+++ b/doc/common/conf.py
@@ -147,11 +147,6 @@ else:
     html_theme = 'sphinx_rtd_theme'
     html_theme_path = [sphinx_rtd_theme.get_html_theme_path()]
 
-# a little extra javascript
-html_js_files = [
-    'js/custom.js'
-]
-
 html_context = {
     'disclaimer': _DISCLAIMER,
 }
diff --git a/doc/ide/conf.py b/doc/ide/conf.py
index 5acd7e0..63bdcd2 100644
--- a/doc/ide/conf.py
+++ b/doc/ide/conf.py
@@ -18,6 +18,7 @@ html_logo = '../common/images/pybricks-logo-rtd.png'
 html_show_copyright = False
 html_show_sphinx = False
 html_css_files = ['css/ide.css']
+html_js_files = ['js/ide.js']
 
 imgmath_image_format = 'svg'
 imgmath_use_preview = True  # requires Sphinx v3