Man pages matching name dist::zilla::app::command::externaldeps in section 3pm:

Dist::Zilla::App::Command::externaldeps.3pm.en	debian 10 / libdist-zilla-plugin-requiresexternal-perl
Dist::Zilla::App::Command::externaldeps.3pm.en	debian 11 / libdist-zilla-plugin-requiresexternal-perl
Dist::Zilla::App::Command::externaldeps.3pm.en	debian 12 / libdist-zilla-plugin-requiresexternal-perl