Ask HN: Which tech stack is the most fun?

For work? Elixir! I particularly enjoy writing tests in elixir compared to any other language so far. Most code is transparent so you can always peek under the hood to see what it's doing, maybe copy a few ideas for your own use. Package management is rather straight forward. The console access in production has been a godsend to execute one off scripts or running export tasks, diagnostics or other bits.

For personal projects? Ruby and Elixir, though ruby's documentation has fallen off of shape as of late, that or Elixir's has spoiled me by setting higher bar

I see you mentioned RoR, you can try Phoenix in its place for Elixir.

As I've commented on a previous post: https://news.ycombinator.com/context?id=29273095, nothing beats Ruby on Rails for me.

Rails. Wait a minute actually..oh yeah - Rails.

Like the person you replied to, I vastly prefer ObjC, I find the compiler pedantry in Swift to be annoying and to slow me down. ObjC is very fast to write and to iterate on, particularly in my style where everything that's an object gets typed as `id` so trying new ideas just means swapping out implementations.

The recent Rails 7 updates are pretty fun, although you could argue that's all boring, which is kind of the point. If it's a matter of getting something accomplished quickly, with the outcome being the fun part, I like Rails for it. For just satisfying cool stuff I like a good pile of BASH and awk. I find it rewarding to pipe a bunch of stuff together and get things done that might feel like it has no business being done like that. The fun of it in this case comes from quickly automating things. To the OPs point of a job change, this feels outside of the initial considerations, but hey it's fun stuff and maybe you'd like it! At a minimum there's a ton of value in software developers understanding the environment their code runs on and there's often space for "devops" activities to do a healthy mix of work on software dev and operations kind of stuff.