RT-AC87U with Lyra or Lyra mini

Hi

I have RT-AC87U as router, can I use Lyra or Lyra mini as access point to the 87u ?
I will connect the Lyra with a ethernet cable.

Will roaming work with 87u and Lyra ?

87u, dont support AiMesh, but not sure it needed or do I need a AiMesh with Lyra?