Pencil2D Animation (2025-12-30) port is available for download:
"An easy, intuitive tool to make 2D hand-drawn animations. Pencil2D is a free, open-source 2D animation software built with the Qt framework, allowing users to create traditional hand-drawn animation on Windows, macOS, and Linux by blending bitmap and vector drawing tools with features like onion skinning. It's a community-driven project developed by volunteers, focusing on a simple, lightweight interface for creating cartoons. Open source under the GNU GPL V2 license."
Requieres Qt 5.
Port by Elbert Pol.