John Carmack7 posts

writing the migration first and the UI last has made our team so much faster.

Replying to @ada

This deserves more attention.

if your cache has no invalidation story, it is not a cache, it is a bug farm.

Replying to @hedy

The trench coat line got me.

Replying to @zara

Came here to say exactly this.

coffee count: 3. bugs fixed: 1. bugs created: 2. net progress: vibes. #music

Unpopular opinion: finally moved our realtime updates to SSE. Simpler than websockets for 90% of cases. #heliostack cc @sam

Unpopular opinion: Seoul in autumn is unreasonably beautiful. #opensource

Small win today: naming things is still the hardest part. Today’s victim: a feature flag.

Hot take: Seoul in autumn is unreasonably beautiful.

Replying to @ken

The trench coat line got me.

Thread: new synth arrived. productivity will be low this week. #react

Replying to @yuna

Wait, since when?!

Unpopular opinion: you probably don’t need that state management library. URL + server state covers a lot.

Thread: I love when the database enforces the invariant so the app code doesn’t have to.

Replying to @hedy

Could you share an example?

most performance problems are data fetching problems wearing a trench coat. #react

CSS anchor positioning just deleted 400 lines of tooltip code from our app.

Replying to @ines

Could you share an example?

shipping small things every day beats shipping big things every quarter.