One line of code that did cost $8,000 (5 minute read)
Screen Studio, a macOS screen recorder, experienced a costly bug in its auto-updater that repeatedly downloaded a 250MB update file every 5 minutes. This resulted in 2 petabytes of network traffic on Google Cloud over a month, costing the company $8,000. The bug, which caused the app to ignore the update's presence and continue downloading it, was from a forgotten line of code during a refactor. |
Amazon RDS for PostgreSQL 17.4 (6 minute read)
Jepsen tested Amazon RDS for PostgreSQL multi-AZ clusters and found that they violate Snapshot Isolation, the strongest consistency model supported across all endpoints. The clusters had G-nonadjacent cycles and anomalies across various versions (13.15 to 17.4), suggesting that they had weaker consistency models like Parallel Snapshot Isolation. This behavior is less safe than a single-node PostgreSQL system. |
Tailwind vs Linaria: Performance Investigation (24 minute read)
The Tailwind and Linaria CSS frameworks were both tested for initial load and interaction performance. Tailwind showed slower interaction performance, specifically in recalculating styles during menu and drawer openings, which was attributed to Tailwind's universal CSS selectors. |
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Why performance optimization is hard work (10 minute read)
Code optimization is difficult because it's a brute-force task that deals with composability issues, continuity parameters, and incompatibility problems. Compilers often fall short, failing to make intuitive optimizations and sometimes even making register allocation mistakes. A lot of technology, such as Apple Silicon, has bad documentation, forcing devs to rely on reverse engineering. |
Programming languages should have a tree traversal primitive (8 minute read)
This post proposes a new control flow construct called `for_tree` for programming languages that simplifies tree traversal, similar to how `for` loops handle linear iteration. This construct would accept an initialization, a condition, and a branching rule to recursively traverse tree-like structures, offering a more readable and less error-prone alternative to manual recursive functions. `for_tree` would also enable `break`, `continue`, and a new `prune` statement for more control. |
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Vantage MCP Server (GitHub Repo)
The Vantage MCP Server is an open-source tool that allows users to query cloud cost data using natural language through AI assistants and MCP clients. |
jsfontpicker (GitHub Repo)
jsfontpicker is a free, open-source JavaScript font picker component that supports system, Google, and custom fonts. It has features like dynamic loading, search, filtering, and translations. |
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Sycophancy in GPT-4o: What happened and what we're doing about it (4 minute read)
OpenAI rolled back the recent GPT-4o update in ChatGPT due to its overly flattering and sycophantic behavior, which made interactions feel uncomfortable and disingenuous. This behavior was from an overemphasis on short-term user feedback during the model's training. To address this, OpenAI is refining training techniques, building guardrails for honesty, and expanding user testing before deployments. |
Daring Fireball: Is Chrome Even a Sellable Asset? (14 minute read)
Forcing Google to sell Chrome as a remedy for antitrust violations is impractical from both business and technical perspectives. Chrome's value is intrinsically linked to Google's ecosystem, not as a standalone entity, and a buyer would essentially only acquire the potential to collect traffic acquisition fees from Google, similar to Apple's Safari. Technically, Chrome is largely based on the open-source Chromium project, making its proprietary value questionable. |
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React Native Calendars (GitHub Repo)
React Native Calendars is a customizable, cross-platform React Native component for displaying calendars on iOS and Android with features like date marking, styling, and localization. |
Chain of Recursive Thoughts (GitHub Repo)
This repository shows a method that makes AI models think more effectively by having them recursively generate and evaluate alternative responses, leading to improved performance, especially during coding. |
PyXL - GPIO Benchmark (7 minute read)
PyXL is a custom hardware processor that runs Python code directly in silicon, achieving significantly faster and more deterministic GPIO performance compared to MicroPython by eliminating the interpreter and software stack. |
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