☒ what are the errors? Also, how did you install homebrew? which architecture is your ruby running as?

 ☒ Yes, I've experienced that as well. However, using the arm64 binary of ruby right now isn't recommended. I've also found that doing the alternative install isn't recommended right now since there are a lot of things still broken. You can get by with the alternative install if you are not needing to do any Rails work, but as soon as you do, you'll run into issues. I would go with the intel arch install of homebrew like seen in the video. At least until there is a more stable version of homebrew and the gems are stable for the arm64 arch.

 ☒ not really. A lot of things do compile and work under the arm64 binary of homebrew. As you noted, things like postgresql seem to work. I haven't done any tests with using the system ruby version. However, I have tested things out with asdf ruby and rvm ruby (both arm64 and intel)

Until things stabalize, I'd recommend doing homebrew under Rosetta.

 ☒ I agree. This application was in that weird transitional phase where the app/assets/javascript/application.js still had the require of UJS

//= require rails-ujs

However, on modern setups where webpacker is present and the asset pipeline is no longer handling the JS, you're absolutely correct.

 ☒ I do not currently have one for reading the metadata tags, but I like the idea. I think that changing the metadata could be a bit more difficult, but reading it should be possible.