Your users want live updates: an order flips to paid, a notification pops, a dashboard number ticks up without a refresh. The obvious answer in Django is Channelshttps://channels.readthedocs.io/. I reached for it first too. But as our scale grew, the...

Change a product's price anywhere in your app, and it instantly syncs to a third-party marketplace. No manual triggers, no polling, no fragile save overrides. Here's the signal pattern that powers it. The Problem In our app, a product's name or pr...