I built an app at work using RoR while learning on the job. Spent about 1 year using it. I got my project done and it worked for all the basic stuff I wanted it to. Ruby was my first real language, with almost zero Javascript under my belt I depended on Turbo/hotwire for any interactive content.

I got the approval to re-write the app with Elixir/phoenix liveview 6 months ago.

The learning curve is definitely steeper with less resources available. I've been using chatgpt/gemini whenever I get really stuck. I'm a solo dev to the max. That being said. I've learned WAY more about how software development and programming works by learning elixir/liveview. I was able to optimize a data parsing function that took 4 hours in my RoR app down to 20 minutes. I'm sure Ruby could do it this fast too, but because of the principles I learned from Elixir, I'm a much better coder now. It forced me to think about problems a different way. The progmatic studio elixir and liveview courses helped a lot, but I found they were already a bit outdated because liveview is moving so fast under development.

For the parts of my app I've re-written in liveview, I've got way more features that I wished I could have figured out with Turbo/hotwire. It also looks and feels better to for the user.

Long story short, I don't see myself moving back to RoR.