bquast’s gists

bquast / rsa_homomorphic_demo.html

Last active April 29, 2026 15:37

LIVE: https://bquast.github.io/RSA_homomorphic_demo/

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>RSA — Multiplicative Homomorphism</title>
	<link href="https://fonts.googleapis.com/css2?family=Archivo+Black&family=Work+Sans:wght@400;600&family=Space+Mono&display=swap" rel="stylesheet">
	<style>
	, ::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

bquast / claude-export-markdown.js

Created April 12, 2026 10:33

Export Claude conversation to markdown

	(() => {
	const title = document.title.replace(' - Claude', '').trim();
	const lines = [`# ${title}\n`];

	// Grab every turn in the conversation
	const turns = document.querySelectorAll('[data-testid="user-message"], .font-claude-response-body, .standard-markdown');

	// Better approach: walk the full message list
	// User messages
	const userMsgs = [...document.querySelectorAll('[data-testid="user-message"]')];

bquast / calmplot.js

Last active April 11, 2026 12:28

calm animation for blog charts live, example in the comments

	(function () {
	function parseDuration(value) {
	var text = String(value \|\| "").trim();

	if (text.endsWith("ms")) {
	return parseFloat(text.slice(0, -2));
	}

	if (text.endsWith("s")) {
	return parseFloat(text.slice(0, -1)) * 1000;

bquast / microgpt.R

Last active April 23, 2026 15:52

bare-bones no-deps GPT algo in R language, Functional Programming

	input_file <- "input.txt"
	if (!file.exists(input_file)) {
	names_url <- "https://raw.githubusercontent.com/karpathy/makemore/refs/heads/master/names.txt"
	download.file(names_url, input_file)
	}

	lines <- readLines(input_file, warn = FALSE)
	docs <- lines[nchar(trimws(lines)) > 0]
	set.seed(42)
	docs <- sample(docs)

bquast / SKILL-cloudflare-pages-vanilla-preferences.md

Last active April 23, 2026 14:42

name	cloudflare-pages-vanilla-preferences
description	Follow Bastiaan's Cloudflare Pages preferences when discussing, advising on, generating code for, or debugging Cloudflare Pages projects (especially vanilla HTML/CSS/JS setups). Use this skill whenever the user mentions Cloudflare Pages, Pages Functions, wrangler, static sites on Pages, vanilla JS, routing, dynamic routes, file structure, or related issues.
version	1.4
author	Bastiaan Quast (@baquast)

Core Preferences & Rules – Always Obey These

bquast / grokipedia-copy-url.user.js

Created November 15, 2025 23:23

	// ==UserScript==
	// @name Grokipedia Search Result Copy URL
	// @namespace http://tampermonkey.net/
	// @version 1.0
	// @description Adds a copy URL button to each search result on the Grokipedia search results page.
	// @author Bastiaan Quast
	// @match https://grokipedia.com/search*
	// @grant GM_setClipboard
	// @grant GM_addStyle
	// @run-at document-idle

bquast / CKKS-encode-crypt.R

Created July 31, 2025 22:44

	## ----setup----
	library(polynom)
	library(HomomorphicEncryption)

	## ----seed-----
	set.seed(123)

	## ----params-----
	M <- 8
	N <- M / 2

bquast / CKKS-encode-encrypt.py

Created July 31, 2025 22:43

	import numpy as np
	from numpy.polynomial import Polynomial

	# Set the parameters
	M = 8
	N = M // 2
	scale = 64
	xi = np.exp(2 * np.pi * 1j / M)

	def vandermonde(xi: np.complex128, M: int) -> np.array:

bquast / webcamqr.swift

Created June 17, 2025 14:30

	import Foundation
	import AVFoundation
	import Vision
	import CoreImage

	class CameraCapture: NSObject, AVCaptureVideoDataOutputSampleBufferDelegate {
	var foundQR: String?
	let qrQueue = DispatchQueue(label: "qrqueue")

	func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {

bquast / readability-extract.js

Last active June 16, 2025 22:15

	const { Readability } = require('@mozilla/readability');
	const jsdom = require('jsdom');
	const fs = require('fs');
	const path = require('path');
	const os = require('os');
	const fetch = (...args) => import('node-fetch').then(({default: fetch}) => fetch(...args));

	// Helper to download an image and return the local filename
	async function downloadImage(imgUrl, folder, idx) {
	try {