Lucia

The Lucia Programming Language is licensed under the GNU General Public License v3.0 (GPL-3.0).

This means you are free to use, modify, and distribute the software, as long as any derivative work is also licensed under the GPL. This promotes a free and open software ecosystem, where improvements and changes remain accessible to everyone.

You can read the full license text on the official GNU website:
https://www.gnu.org/licenses/gpl-3.0.en.html