Backend architecture, Django and Python, relational databases and the everyday craft of delivering enterprise software.
A Celery beat payout queue burned through BlockCypher's free hourly quota and leaked its API token into the payment log. How I cut the requ…
One domain, two mail services: Resend sends the system mail, Zoho Mail holds the support mailbox. The DNS records and why the two SPF recor…
One nginx, one Postgres, and per site its own app, Redis, Celery worker and beat, behind Cloudflare or ArvanCloud. Plus the details that bi…
The articles here are not only about clean code; they are about what happens at the level of the system — database lock contention, the cost of opening TCP connections, and how a service behaves under real load.
