Blog — Hisham Medhat

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root@hisham:~/blog$ cat README.md

README.md

Notes on backend systems I actually shipped: multi-tenancy, observability, deployment, and the parts of PHP and TypeScript that surprise me. Written by Hisham Medhat, AI fullstack engineer in Alexandria.

root@hisham:~/blog$ ls -lt posts/

2026-08-31 Cutting cloud spend by 80% without cutting anything users notice

Where the money was actually going across AWS, Azure, and Railway, which line items were safe to delete, and the measurements I took before touching production.

infra aws cost read →

2026-08-31 Multi-tenant Laravel: request-scoped guards over trusting your queries

Tenant isolation belongs below the query layer. How Spatie Teams, request-scoped guards, and repository-level filters keep one tenant's data out of another's response.

laravel saas architecture read →

2026-08-31 Building an observability platform on Hono and Bun

Ingesting telemetry from 15+ services, enriching requests on the way in, and deciding which alerts are worth waking someone up for.

bun observability telemetry read →

2026-08-31 500 integration tests later: what regression coverage actually caught

A year of PHPUnit tests across attendance, overtime, leave, and penalty workflows, and an honest look at which of them ever failed for a good reason.

testing phpunit hr-systems read →

root@hisham:~/blog$ ./subscribe.sh

rss -=- github -=- linkedin -=- hishammedhat0@gmail.com

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