Run a cluster of changelog app instances

[gerhard]

This comes up towards the end of this week's Kaizen episode, 🎧 shipit.show/70

While I remember, I wanted to take a few notes:

• https://elixirforum.com/t/what-are-the-caching-strategies-in-phoenix/12351/11

Saša Jurić, the con_cache author: Cachex is much more actively maintained as well as more feature rich, so that’s what I’d recommend first.

• https://github.com/whitfin/cachex
• https://hexdocs.pm/cachex/distributed-caches.html
• https://alvinrapada.medium.com/caching-in-phoenix-elixir-with-cachex-1ca2c9442618