Suppose a software developer wants to release a software project into the public domain. However the developer knows that this sometimes causes more troubles than it solves due to the problem that public domain isn't an international thing. Can such a developer use the license below which is pretty much a public domain dedication with a zero-bsd fallback.
I want to know how this looks from a legal point of you in both international and national (commonwealth law).
This is free and unencumbered software released into the public domain.
If the above public domain dedication is legally void, the following copyright license shall apply:
Copyright (c) 2020 MY NAME firstname.lastname@example.org
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.