Keila VS Papercups

Keila is another one with similar features plus a visual (block) editor for designing the email template/content: https://github.com/pentacent/keila

Someone on r/selfhosted built an alternative for Mailchimp called Keila a while ago. (https://github.com/pentacent/keila). I haven't tried it myself but this sounds promising. You can use your own mailserver with it (which I recommend you do not selfhost for business purposes). As it is licensed right now, it should be way cheaper to use this instead of Mailchimp.

If that doesn’t fix it, please feel free to post a bug report with more details here: https://github.com/pentacent/keila/issues

I've used Keila in the past and was pretty happy w/ it.

What about keila (https://github.com/pentacent/keila) I haven't used it myself yet..

A cool feature that’s not quite ready yet but that I’m working on at the moment is the ability to add custom campaign data. This will allow you to create a template (e.g. for showing your most recent blog posts) and feed it with data via the API - giving you the easiest fully-automated email campaigns ever. I wrote a little thread over at Twitter about this (Draft PR on GitHub). I’m curious to hear if/how you’d use that feature!

The best language for the task at hand, when presented with time constraints, is the one that you already know well. OP said in the article that they authored Papercups [1]. Adopting Elixir for a websocket-push service makes a lot of sense, then. However, why don't you learn Elixir, some OTP, and then reconsider that question? You could be missing out.

[1] https://github.com/papercups-io/papercups

https://github.com/papercups-io/papercups - 5.2k stars, uses Phoenix 1.6

Papercups

Shameless plug here if anyone is interested in an open source live chat tool check out https://github.com/papercups-io/papercups

Phoneix - Elixir

We're a live message tool and it is basically what Elixir is built for https://github.com/papercups-io/papercups.

The Elixir community has been great and incredibly friendly. I originally was worried about the size of the community but that hasn't been an issue the community has been super helpful. I also think the annual stackoverflow usage surveys are very misleading because most of the community's questions get asked in ElixirForum and not on Stackoverflow.

Phoneix is the web framework of Elixir which is very similar to Rails but minus a lot of the magic has been very helpful for our productivity as well.

If I had to built another service that is websocket heavy I would definitely use Elixir. Even if it was a standard crud app I would still most likely choose Elixir.