HackerNews Summary (2023-05-21 04AM)

Source: Dolphin Progress Report: February, March, and April 2023

Summary
Dolphin has made significant changes to its Android input handling to enable its Android users to enjoy the same feature set as desktop users. Dolphin is now also a document provider, making it easier to copy files into and out of its per-app directory.

Facts

📱 Dolphin has made a large-scale rewrite to its Android input handling that will eventually enable Android users to enjoy the same feature set as desktop users.

📂 Dolphin is now a document provider on Android, allowing users to directly copy files into and out of its per-app directory on the latest versions of Android.

👨‍💻 Sonicadvance1 started developing Dolphin JIT more than ten years ago for ARM processors, and today it is mostly used on Android phones.

🔍 One of the biggest challenges with Dolphin on Android has come from Android’s interfaces being written in Java versus Dolphin’s being written in C++.

🎮 JosJuice has been slowly removing all of the Java reimplementations of C++ parts of Dolphin on Android and moving them over to JNI behind the scenes.

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Source: GEIGEIGEIST/KLOR: KLOR is 36-42 keys column-staggered split keyboard. It supports a per key RGB matrix, encoders, OLED displays, haptic feedback, audio, a Pixart Paw3204 trackball and four different l

Summary
KLOR is a customizable 36-42 key column-staggered split keyboard with per key RGB matrix, encoders, OLED displays, haptic feedback, speakers, a Pixart Paw3204 trackball, and four different layouts. It offers a 3D printed case and an acrylic case option for every layout.

Fact

💡 KLOR supports per key RGB matrix, OLED displays, haptic feedback, speakers, and a trackball

🔧 KLOR offers a 3D printed case and an acrylic case option for every layout

🔌 KLOR is configurable with QMK, ZMK, and KMK firmware, and it also supports KS-27 and Choc V1 switches

🧑‍💻 KLOR hardware is based on Sofle by Josef Adamcik and Buzzard by Christoph Rehmann

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Source: The absurdity of stacks

Summary
The attitude that stack is expensive and scarce, while heap is cheap and plentiful, is absurd as both are made of memory. The idea of unnecessarily deforming programs to make them iterative to conserve stack leads to non-optimized solutions.

Fact

🤔 The stack and heap are both made up of memory.

💻 The need to conserve stack to prevent running out of space is unnecessary in modern computers.

💾 There should be limits on both heap and stack sizes. Excessively reducing the stack size limit leads to non-optimized solutions and fear of recursion.

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Source: Ask HN: Are App Store anti-steering rules dead now?

Summary
Developers may be able to use external payment methods for in-app purchases after Epic vs Apple’s ruling and the EU’s statement of objections.

Fact

💰 Developers can use alternative payment systems for in-app purchases in South Korea after a new law was passed earlier this year.

🍎 Apple is appealing the Epic vs Apple ruling and the final outcome is unclear.

📱 Google Play Store already allows apps to use alternative payment systems for in-app purchases.

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Source: r9os/r9: The R9 operating system

Summary
R9 is a kernel reimplementation of Plan9 using Rust. The program uses cargo and xtask pattern to build it and supports x86-64 and aarch64 architecture.

Fact

💻 R9 uses cargo and xtask pattern to build the kernel.

🛠️ It supports x86-64 and aarch64 architecture.

🧑‍💻 R9 is a reimplementation of Plan9 made in Rust programming language.

📁 r9 is not yet self-hosting.

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Source: TOML: Tom’s Obvious Minimal Language

Summary
There are four ways to express strings in Python: basic, multi-line basic, literal, and multi-line literal. Basic and multi-line basic strings use quotation marks, while literal and multi-line literal strings use single quotes.

Facts

💬 Basic strings are surrounded by quotation marks.

💬 Multi-line basic strings are surrounded by three quotation marks on each side and allow newlines.

💬 Literal strings are surrounded by single quotes and no escaping is performed.

💬 Multi-line literal strings are used when there is a need to include single quotes in the string.

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Source: echoserver: A simple echo server for testing HTTP clients.

Summary
A customizable echo server to test HTTP clients by generating specific URLs and receiving desired responses.

Fact

💻 Generates custom URLs for testing

🔄 Receives desired responses for testing

🌐 Specifically designed for HTTP clients

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