Pick either the second or third paragraph and the final one is optional.
Copyright (c) 2024 «AUTHORS»
In the name of a free and open culture, you may do anything with this software that copyright law would normally restrict, provided this license is preserved. This software is offered as-is, without any warranty.
To the extent permitted under applicable law, worldwide, all copyright holders fully waive their copyrights to this software and dedicate it to the public domain.
This software or any derivatives of this software can only be distributed with their source code publicly available; software that is distributed with this software as part of it should also require the same. Services can only make use of this software provided that any modifications are publicly available.