Elixr, Phoenix, Postgres, Ubuntu and Gitlab CI/CD, hosted on Digital Ocean. In my case, since I'm teaching this stack (at https://alchemist.camp https://alchem

Elixr, Phoenix, Postgres, Ubuntu and Gitlab CI/CD, hosted on Digital Ocean. In my case, since I'm teaching this stack (at https://alchemist.camp https://alchemist.camp), it was a great choice. I think there's a bit more credibility in using what I'm teaching instead of just using an off-the-shelf solution, and it's also been a source of inspiration for some of the content, too. Being able to handle more visitors and traffic than I'll ever likely get on a total infrastructure cost of just over $7/month, is great, too.