Hi, it's possible for DDs to build/test packages on porter boxes via dd-schroot-cmd, see https://dsa.debian.org/doc/schroot/.
However, e.g. arm64 autopkgtest failures are RC bugs and so far, it was difficult to reproduce and debug those on the porter boxes, at least I was not aware of an easy way to run autopkgtest on those. During the Online MiniDebConf today I hacked a bit around, and (with some help from Antonio Terceiro) came up with the following proof-of-concept script: https://salsa.debian.org/mbanck/dd-autopkgtest/-/blob/master/dd-autopkgtest You can run this with a source package name on one of the porter boxes, like: ./dd-autopkgtest foo It will then (i) create a working directory with the name of the source package, (ii) bootstrap a schroot, (iii) install autopkgtest, the test dependencies and the binaries in the schroot and (iv) run autopkgtest. It will drop you in a shell if autopkgtest fails. The primary limitation is that you can only test binary packages that are in unstable already, because dd-schroot-cmd does not allow to install local packages. I have not extended the script for other distributions than unstable, but that should be possible. Bugs, merge requests, suggestions and comments welcome! Michael