Alternatives to Trello

[Costas]

https://kanboard.org/
https://wekan.github.io/
http://restya.com/board/index.html
http://taskboard.matthewross.me/ https://github.com/kiswa/TaskBoard

https://www.proofhub.com/
https://www.workzone.com/
https://restya.com
https://taiga.io/ https://tree.taiga.io/discover/search?text=kanban