The package is available on salsa science-team group. However, it was
rejected due to license issues discussed in [1]. I didn't receive
feedback from upstream yet, and a similar package, cubature, was
recently added to Debian.
Hence, at the moment I am no longer very motivated to maintain the
package. I am going to retitle the ITP to RFP, in case in future the
copyright and proprietary license issues will be solved.
[1]
https://alioth-lists.debian.net/pipermail/debian-science-maintainers/2019-December/076976.html
Best,
Francesco