Top all-time · #6420
Cash App Code Blog
Company blog · code.cash.appprogrammingsecurity
Cash App Code Blog is the company blog at code.cash.app, writing about programming and security. Since 2021, 12 different Hacker News readers have linked it 12 times, most often “Cash App reduced their p99 latency by half”. It is still writing: the last post was on 2025-11-18, and you can follow it by feed.
Too few sampled comments (2) to say how often HN recommends it.?
Why HN links it
Cash App's engineering blog, cited in HN threads on Skip (Kotlin Multiplatform tooling) and on spreading database requests across many servers, as in its PlanetScale Metal post.
Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Cash App Code Blog
Most-linked posts?
- Cash App reduced their p99 latency by half3 people · 3 mentions · first linked 2025-03-12
- Redwood Multiplatform2 people · 2 mentions · first linked 2023-07-13
- Data Safety Levels Framework: The foundation of how we look at data in Block2 people · 2 mentions · first linked 2025-05-06
What Hacker News says?
> KMP itself doesn't have an equivalent Are you sure about that? https://code.cash.app/native-ui-and-multiplatform-compose-wi...
Comment linking /native-ui-and-multiplatform-compose-with-redwood
on “Skip Is Now Free and Open Source”Submitted Reducing the Size of Cash App for iOS as a story · 8 points
HN discussionSpreading requests out across hundreds, thousands, and in some cases even more is precisely what is done in the industry for big databases! Good examples: cashapp: https://code.cash.app/planetscale-metal github: https://github.blog/engineering/infrastructure/partitioning-... etsy: https://www.etsy.com/codeascraft/migrating-etsyas-database-s... These companies could not realistically operate off a single database ser…
Comment linking /planetscale-metal
on “Making 768 servers look like 1”Submitted Cash App reduced their p99 latency by half as a story · 6 points
HN discussionSubmitted Cash App on PlanetScale Metal as a story · 5 points
HN discussionSubmitted Data Safety Levels Framework: The foundation of how we look at data in Block as a story · 2 points
HN discussionSubmitted Data Safety Levels Framework: The foundation of how we look at data in Block as a story · 1 points
HN discussionSubmitted Encryption using data-specific keys as a story · 1 points
HN discussionSubmitted Spirit (MySQL Online Schema Change) as a story · 1 points
HN discussionSubmitted Redwood Multiplatform as a story · 1 points
HN discussionSubmitted We sped up zipline hot reload as a story · 1 points
HN discussionSubmitted Gradle Dependency License Validation as a story · 1 points
HN discussion
