Monitaur is the premier model governance software that helps highly regulated enterprises build better AI and models that businesses, regulators, and consumers can trust.
I'm guessing you're looking more for a dev tool, but I co-founded a company that deals with this very thing (among others) from a governance perspective. https://www.monitaur.ai/
I do load the GA and Stripe data asynchronously via XHR requests. The initial load does take quite a bit of time. After that, I cache the results to the database and load from there first so subsequent loads are much quicker.
I love the simplicity of these types of things. It's a bit pricey, but things like this can save a lot of time. I built one specific to my needs, which integrates the key metrics I look for in both Stripe and GA:
Have any interest in expanding this into a blog post? I've been working on a similar post. Maybe we can compare notes. I'm at michael at testdriven dot io, if interested.
Big fan of this library. I think Celery is overkill for most projects. RQ is nice for the majority projects and it can scale right along with your project.
Moving from the legacy checkout to elements was complex since you do not mention in the docs that validation checks no longer get checked on the client and instead have to happen on the sever.
Have you looked into e2e tests? They verify that the system works as expected - so they should catch those areas that you are not testing for in your unit and integrations tests.
Check out Real Python (https://realpython.com), if you're looking to learn web development with Python and Django.
Note: I am the co-founder/author
Real Python takes an experiential, learning by doing approach so you build interesting projects. Happy to provide a discount. Email us - info at realpython dot com. Cheers!