Selamat Pagi,
I'm an experienced, talented, and highly-intelligent DevOps engineer, who has worked on a variety of Ruby on Rails apps.
I have complete confidence in my ability to migrate your project from ActionCable to AnyCable, and do so with properly written, properly tested, functional, and maintainable code.
(I will also assure that anything done should work on a variety of different servers rather than locking you into Heroku)