Writing
Mostly post-mortems of my own mistakes: database decisions that aged badly, abstractions that looked clean until traffic arrived, and the occasional thing that worked.
-
13 min read
React State from first principles
Learn react useState hook from first principles. Use states with confidence.
-
4 min read
What MongoDB change streams actually cost you
Change streams removed a polling loop and a whole class of duplicate-payout bugs. They also introduced three failure modes I had not budgeted for.
-
3 min read
Stop putting business logic in Express middleware
Middleware that mutates the request object reads like dependency injection and behaves like a global variable. Here is the refactor that finally stuck.
-
3 min read
A React data layer that survives a bad network
Notes from building an offline-first pharmacy app for shops on 2G, where the connection is not an edge case but the normal operating condition.