Hello,
currently, I try to setup UCS to launch dropbear during boot to unlock the LUKS encrypted disk. But I am a bit puzzled that the package cryptsetup-initramfs is not available in the repositories (unmaintained is already enabled).
A few months ago, I already experimented with dropbear and cryptsetup, and it worked as intended. I am just not sure if I tried it with UCS, though. Looking at my setup from then, it seems I never finished this config … 
But where is the package cryptsetup-initramfs? Or why isn’t it included?
Bests,
Masin Al-Dujaili