samhenrigold

// CAHost - host a Core Animation layer tree on screen on Mac OS X 10.4.11.
//
// Tiger has no layer-backed NSViews and its WindowServer speaks no CA protocol,
// so the only path is CARenderer over the CGL context of an NSOpenGLView, driven
// by hand: [CATransaction flush] + beginFrame/addUpdateRect/render/endFrame.
// This is the shape WebKitLegacy's compositing host will take.
//
// Build: see Makefile. MRR, fragile ObjC runtime.

#import <Cocoa/Cocoa.h>

ry

LLM Wiki

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

The core idea

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

waschmittel

#!/usr/bin/env zx
//
// resolveIdentity() falls back from exact-label match to "the sole identity
// with this touch policy" so a key created by hand before this script existed
// gets adopted rather than duplicated; ambiguous cases die rather than guess.
// --cleanup deletes by resolved identity one at a time, never via
// `sc_auth delete-all-ctk-identities`, so unrelated FileVault/PIV/login
// smartcard identities are never touched.

import os from 'node:os';

aparente

---

name: tufte-viz description: | Ideate and critique data visualizations using Edward Tufte's principles from "The Visual Display of Quantitative Information." Use this skill when: (1) Designing new data visualizations or charts (2) Critiquing or improving existing visualizations (3) Reviewing dashboards or reports for graphical integrity (4) Deciding between visualization approaches (5) Reducing chartjunk or improving data-ink ratio (6) Planning small multiples or high-density displays

vistar941

import UIKit

final class MenuControl: UIControl {

    private let label: UILabel = {
        let label = UILabel()
        label.text = "Public API-Only Menu"
        label.font = .boldSystemFont(ofSize: 15)
        label.textAlignment = .center
        label.textColor = .white

rebane2001

<!-- i have to warn you, this code SUCKS! i DO NOT recommend using this code, but you can if you want -->
<div style="width:calc(442px + 28px * 2); outline:1px solid #232323; border-radius:8px;position: absolute;top:0;left:0;translate:calc(50vw - 50%) calc(50vh - 50%); box-sizing: border-box;container-type: size;height:600px;contain:strict">
	<div style="overflow: clip;contain:strict;width:100%;height:100%;position:absolute">
		<div style="padding:28px;display: flex;height:100%;box-sizing:border-box;flex-direction: column;align-items: center;justify-content: center;">
		<svg class="nv-block sm:nv-hidden nv-h-6 nv-w-auto" style="width:100px;margin-top:2px" viewBox="0 0 1230.574 519.774" xmlns="http://www.w3.org/2000/svg" aria-label="Cloudflare"><path d="m784.025 512.011 5.872-20.311c6.998-24.169 4.394-46.511-7.349-62.926-10.801-15.122-28.804-24.022-50.666-25.056l-414.114-5.281c-2.788-.147-5.096-1.403-6.518-3.471-1.44-2.123-1.773-4.856-.886-7.478 1.366-4.08 5.41-7.164 9.62-7.349l417.954-5.299c49.576-2.271 103.2

Kyle-Ye

Using CAHostingLayer in SwiftUI

Background

SwiftUI provides more than just UIHostingController / _UIHostingView (iOS) and NSHostingController / NSHostingView (macOS) for embedding SwiftUI views into UIKit/AppKit.

Starting from iOS 18.0 / macOS 15.0, SwiftUI also offers CAHostingLayer<Content: View> — a CALayer subclass that can host SwiftUI content directly at the layer level. This API is currently marked as SPI (@_spi(ForUIKitOnly) / @_spi(ForAppKitOnly)) and is used internally by UIKit, AppKit, and WebKit.

Accessing CAHostingLayer without Apple Internal SDK

Kyle-Ye

Disabling CALayerSystem Behavior in SwiftUI on iOS 26

Starting with iOS 26, SwiftUI's UIHostingView may use CALayer-based rendering (caLayerSystem) instead of the traditional UIKit-based rendering (uikitSystem) when certain conditions are met. This can cause unexpected changes in the view hierarchy — for example, _UIGraphicsView and CGDrawingView subviews may be replaced by plain CALayer and CGDrawingLayer sublayers.

Here are two approaches to temporarily disable this behavior in your local debug environment.

Option 1: Environment Variable

Set the environment variable SWIFTUI_DISABLE_MIXED_VIEW_HIERARCHY=1 in your scheme's Run configuration (Edit Scheme → Run → Arguments → Environment Variables).

gingerbeardman

// Final CRT shader with all effects including curvature

uniform float scanlineIntensity; // Adjust intensity (0-1)
uniform float scanlineCount; // Number of scanlines
uniform float time; // For flicker effect
uniform float yOffset; // Vertical drift to combat moiré pattern
uniform float brightness; // Overall brightness
uniform float contrast; // Contrast adjustment 
uniform float saturation; // Color saturation
uniform float bloomIntensity; // Bloom effect intensity

Magicalbat

#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdbool.h>

typedef int8_t i8;
typedef int16_t i16;
typedef int32_t i32;
typedef int64_t i64;
typedef uint8_t u8;