diff --git a/by-list.md b/by-list.md
index 7783da3..6b86fc9 100644
--- a/by-list.md
+++ b/by-list.md
@@ -327,6 +327,7 @@
 - [Thymis-io/thymis](https://github.com/Thymis-io/thymis) - Web-based platform for configuring, provisioning, updating, and monitoring (IoT-)devices and systems, powered by NixOS
 - [cheeaun/phanpy](https://github.com/cheeaun/phanpy) - A minimalistic opinionated Mastodon web client
 - [spatie/sheets](https://github.com/spatie/sheets) - Store & retrieve your static content in plain text files
+- [cocur/slugify](https://github.com/cocur/slugify) - Converts a string to a slug. Includes integrations for Symfony, Silex, Laravel, Zend Framework 2, Twig, Nette and Latte.
 
 ## knowledge
 - [TiddlyWiki/TiddlyWiki5](https://github.com/TiddlyWiki/TiddlyWiki5) - A self-contained JavaScript wiki for the browser, Node.js, AWS Lambda etc.
@@ -1286,6 +1287,7 @@
 - [public-apis/public-apis](https://github.com/public-apis/public-apis) - A collective list of free APIs
 - [Qloapps/QloApps](https://github.com/Qloapps/QloApps) - QloApps is a Free and Open-source hotel management and reservation system to take a hotel business online. QloApps offers a Property Management System (PMS), a Booking Engine, and an attractive Hotel Website. Elevate hotel operations with QloApps to streamline processes and provide an enhanced experience for both hoteliers and guests.
 - [spatie/sheets](https://github.com/spatie/sheets) - Store & retrieve your static content in plain text files
+- [cocur/slugify](https://github.com/cocur/slugify) - Converts a string to a slug. Includes integrations for Symfony, Silex, Laravel, Zend Framework 2, Twig, Nette and Latte.
 
 ## work
 - [oeg-upm/devops-infra](https://github.com/oeg-upm/devops-infra) - Public repository for an ontology network on DevOps infrastructure