Package: ganeti Version: 3.0.2-1 Tags: bookworm, sid ganeti build-depends on both libcurl4-openssl-dev and libghc-curl-dev, the current version of libghc-curl-dev build-depends on libcurl4-gnutls-dev and libcurl4-gnutls-dev conflicts with libcurl4-openssl-dev.
Therefore your packages build-dependencies are unsatisfiable.