You know those gists you posted with build scripts. Can you commit them
to one of the libbitcoin repos?

Maybe this one https://github.com/libbitcoin/libbitcoin-build

Also where should people send debpkg bug reports? What do you think of
the libbitcoin-build Issues tracker?

The current Ubuntu 16.04 for me is failing with:

$ bx help
bx: symbol lookup error: /usr/lib/libbitcoin-explorer.so.0: undefined
symbol: _ZN10libbitcoin7network9handshake11unspecifiedE