We support both Rails and Phoenix at Honeybadger.io (APM/error tracking), and I tend to personally prefer the more declarative/less-magic approach. We're still a Rails monolith primarily but have run Elixir services in production and are fans. We're just getting started on building some observability stuff for Ash, will be interesting to see how it compares.

We got tired of paying Intercom and others a fortune to send customer lifecycle emails; we built Heya to send them ourselves.

Heya let’s you send segmented drip email campaigns similar to Intercom or Customer.io, but directly from Rails.

Main benefits:

- Open source

- Self hosted

- It’s easier to integrate, since it runs on top of your existing user database

- Much cheaper ($99/year atm)

- It’s just Rails!