diff --git a/README.md b/README.md
index ee3470c..ceb0b89 100644
--- a/README.md
+++ b/README.md
@@ -227,3 +227,7 @@ There are some FreshRSS extensions out there, developed by community members.
 
 * [Show URL](https://codeberg.org/strubbl/xExtension-ShowURL): Shows the current article's URL right before the article content starts
 
+### By [@caglaryalcin](https://github.com/caglaryalcin)
+
+* [Three Pane Reader](https://github.com/caglaryalcin/xExtension-ThreePaneReader): An Inoreader-style three-pane reading layout (navigation, article list, and article content side by side)
+
diff --git a/repositories.json b/repositories.json
index e0f1398..2701073 100644
--- a/repositories.json
+++ b/repositories.json
@@ -121,4 +121,7 @@
 }, {
   "url": "https://codeberg.org/strubbl/xExtension-ShowURL",
   "type": "git"
+}, {
+  "url": "https://github.com/caglaryalcin/xExtension-ThreePaneReader",
+  "type": "git"
 }]