Nice. I tried to use Packages Search to get a list of public domain packages, but https://packages.debian.org/index doesn't search licenses.
Using https://codesearch.debian.net/search?q=public-domain+path%3Adebian%2Fcopyright&literal=0 gives "5310 files grepped (2321 results)". Not sure if that means that 2321 out of 5310 packages contain public domain code. >From the DFSGLicenses FAQ my use case can be solved with placing this text into `debian/copyright`. Copyright: Anatoli Babenia License: public-domain As for inclusion in `dh-make`, I think that there should be a simple way for people to state their will for copyright opt-out for their source code. Telling people to use different copyright laws that don't provide opt-out mechanisms to opt-out from those laws looks wrong. WTFPL, CC-0, Unlicense are all products of that approach that are not guaranteed to work. Requiring authors to write explanations why they place their code in public domain looks like a lack of trust to me. I would state that overcomplicating such a simple thing as public domain is not in the interests of people who chose to share their code this way.