It’s worth scoping out what your site will need to do up front to some extent. Spending a couple of days setting up a basic background processing system (whethe

It’s worth scoping out what your site will need to do up front to some extent. Spending a couple of days setting up a basic background processing system (whether that’s celery, rq, or a home grown system) makes it easy to make great engineering decisions later down the line. Questions like: should I send this email in-line in the web request? Get a very easy answer: no, just stick do it later. Sure, sending an email is probably fine to do in-line for now, but months in you may realise that things are slow, that you’re sending emails and rolling back transactions later, or committing the transaction but losing the email that needed to be sent, or all manner of other annoying edge cases. Queues don’t solve everything, but they can be an ok answer to a lot of stuff for a long time. For basic sites, yeah maybe not necessary, but a reliable background processing system has always been a significant accelerator in my projects.