HackerNews Summary
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Get quick, clear summaries for every Hacker News storyβ€”no more info overload. This bot reads each post and gives you the key points in seconds. Perfect for staying updated without reading full threads.
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Composing APIs and CLIs in the LLM era

πŸ”ΈThe user discusses two strategies for structuring tool descriptions within an LLM context window and argues that enabling the model to form pipelines of tool calls without re-prompting is an innovation that presents huge savings in token cost. The user showcases how they achieved this by using tools like Restish and oauth2c to create a CLI that interacts with Google APIs without writing bespoke code.

22 Jan 2026

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FIPS dependencies and prebuilt binaries

πŸ”ΈFIPS adoption is complicated due to intricate dependency webs and prebuilt native artifacts that bypass crypto boundaries. Teams must rethink how they build FIPS to get ahead of the game and avoid common pitfalls.

22 Jan 2026

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Turso is an in-process SQL database, compatible with SQLite

πŸ”ΈTurso Database is a Rust-based evolution of SQLite with native async support and features like vector search. It's still in beta and has a bug bounty for data corruption issues.

22 Jan 2026

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Improving the usability of C libraries in Swift

πŸ”ΈSwift provides direct interoperability with C libraries, allowing developers to use existing C libraries from Swift code without rewriting them. By using Swift annotations and API notes, developers can improve the safety and ergonomics of C libraries in Swift, making them feel more native to the language.

22 Jan 2026

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Why medieval city-builder video games are historically inaccurate (2020)

πŸ”ΈMedieval city builders often deviate from historical accuracy, featuring linear growth and unrealistic scenarios, but incorporating realistic elements like flood valleys and tithe collection could enhance realism. A more historically accurate game would involve planning settlements, managing resources, and dealing with threats like disease, war, and social unrest.

23 Jan 2026

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Scaling PostgreSQL to power 800M ChatGPT users

πŸ”ΈOpenAI scaled PostgreSQL to handle millions of queries per second for 800 million users through rigorous optimizations and solid engineering, enabling the system to support massive global traffic with a single primary instance and nearly 50 read replicas. Despite challenges with write-heavy workloads, the team implemented various solutions to mitigate limitations, including migrating ...

22 Jan 2026

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Vibe a Guitar Pedal

πŸ”ΈThe Endless is a studio-grade audio processor with a clean analog input and output, and a Playground for designing effects. It costs $20 for a new Endless, with optional effect purchases starting at $1.

23 Jan 2026

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Metastable Failures and Interactions Between Systems

πŸ”ΈMetastable failures are self-sustaining performance failures caused by positive feedback loops in systems, which can be mitigated by minimizing interactions, avoiding positive feedback, and making signals unambiguous. Strategies to avoid metastable failures include minimizing unnecessary interactions, avoiding actions that create positive feedback, and making signals unambiguous, but ...

23 Jan 2026

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Arkansas inmates restricted from receiving physical books, other media directly

πŸ”ΈArkansas inmates will no longer receive books, newspapers, or magazines directly due to a new policy aimed at reducing contraband. Critics argue this restriction severely limits access to reading materials, which can be outdated on prison-issued tablets.

23 Jan 2026

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Bugs Apple Loves

πŸ”ΈUsers Affected Γ— Frequency Γ— Time Per Incident How many Apple users hit this bug, how often, and how long they suffer each time.

23 Jan 2026

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Pushing the smallest possible change to production

πŸ”ΈThe user pushes a small change into production during their first week to learn the new environment and build relationships with coworkers. This exercise helps them navigate the workplace, understand workflows, and establish a fruitful working relationship.

23 Jan 2026

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What Is Control Flow Analysis for Lambda Calculus? – Iowa Type Theory Commute

πŸ”ΈThe podcast discusses various topics in type theory, including control flow analysis, measure functions, and termination of programs. It also covers topics like subtyping, nominal techniques, and the locally nameless representation of syntax with binders.

23 Jan 2026

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The Lost Art of XML

πŸ”ΈThe author argues that XML is a superior data format to JSON due to its built-in schema validation, namespace support, and self-description capabilities, which provide a more robust and reliable way to represent data. Despite the existence of binary XML encodings like Fast Infoset and EXI, the industry has abandoned XML in favor of JSON and other formats, prioritizing developer convenience ...

23 Jan 2026

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Talking to LLMs has improved my thinking

πŸ”ΈLarge language models help clarify vague thoughts by mapping internal patterns to language. This improves the interface between thinking and language, increasing clarity and explicit representation of ideas.

23 Jan 2026

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Writing First, Tooling Second

πŸ”ΈCreate a simple website with plain HTML to publish your writing without worrying about tooling. Once you have content, you can add tooling to make your writing process more enjoyable.

23 Jan 2026

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TI-99/4A: Leaning More on the Firmware

πŸ”ΈThe user is working on a project to master the TI-99/4A home computer's graphics chip and sound capabilities using the Graphics Programming Language (GPL) and has made progress on adding animated sprites and implementing collision detection. The user has also encountered some challenges and limitations with the GPL and the TI-99/4A's sound system, but has found ways to work around them and ...

23 Jan 2026

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Proton Spam and the AI Consent Problem

πŸ”ΈThe user received a newsletter for Lumo despite opting out and Proton Support initially denied it was a Lumo email. The user believes Proton and GitHub are abusing their services by ignoring opt-out requests.

23 Jan 2026

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