diff --git a/README.md b/README.md
index 4deabb52..201fb01e 100644
--- a/README.md
+++ b/README.md
@@ -581,6 +581,7 @@ Read [CONTRIBUTING.md](/.github/CONTRIBUTING.md) to learn how to add your own re
 *Solutions to AoC in Swift.*
 
 * [Abizern/aoc-swift-2025](https://github.com/Abizern/aoc-swift-2025) ![Last Commit on GitHub](https://img.shields.io/badge/last%20commit-2025--12--01-brightgreen)
+* [gereon/AoC2025](https://codeberg.org/gereon/AoC2025)
 
 #### Tcl/Tk