@regis What I proposed in this thread is a short-term solution given what we have to work with for now. I don’t have a good answer to those questions you have since I was hoping we’d take a different approach for future releases to really enable frequent rebuilds. (If I need a private container registry, I’d likely just use GitLab’s container registry since we’re already using GitLab CI + GitLab Terraform backend; I know that’s not a general solution suitable for Tutor though.)
What I really want to see in the long term is outlined in this PR comment: https://github.com/edx/open-edx-proposals/pull/164#issuecomment-718126777 - the short version is that I don’t think a complex theming pipeline should be built into Tutor; rather the core platform itself should have a “Theming MFE” that controls theming, and allows rapid customization and preview (WYSIWYG).
P.S. based on things I’ve learned recently, switching from Webpack to Snowpack or Vite would likely unlock much faster frontend builds.