One identity, many roles: what I got wrong about marketplace accounts
Separate emails per role punish a marketplace's busiest users. How EgyGomla's design moves to one identity with linked buyer and supplier organizations.
Writing
Notes from shipping real products
Articles by Mohamed Elgohary on mobile release engineering, QA, marketplace design and PostgreSQL data integrity, written from real projects.
Tested like a QA engineer: how I release mobile apps
A mobile release checklist shaped by QA/SDET work: test the release build, refuse permissions, break the network, upgrade from live, keep the API safe.
Valid product, wrong supplier: moving an ownership rule into the database
A foreign key proved a product existed, not that it belonged to the named supplier. How a composite foreign key made the wrong pair unstorable.