reinhrst’s gists

reinhrst / Dockerfile

Created November 4, 2023 04:05

emscripten for arm64 / aarch64 Docker container

	FROM debian

	RUN apt-get update && apt-get install -y git xz-utils python3 curl && rm -rf /var/lib/apt/lists/*

	RUN git clone https://github.com/emscripten-core/emsdk.git && cd /emsdk && ./emsdk install latest-arm64-linux && ./emsdk activate latest-arm64-linux
	ENTRYPOINT ["/emsdk/docker/entrypoint.sh"]

reinhrst / Cargo.toml

Created June 15, 2023 10:49

Nom streaming test (blog post to follow soon)

	[package]
	name = "nomtest"
	version = "0.1.0"
	edition = "2021"

	# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

	[dependencies]
	nom = "7.1.3"
	tempfile = "3.5.0"

reinhrst / reveal-js.html

Created March 21, 2023 08:22

One page bowser-only solution to make a Reveal presentation in Markdown, with Mermaid diagrams (no Node, in-browser)

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<meta
	name="viewport"
	content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"
	/>

	<title>reveal.js</title>

reinhrst / limit.sb

Created March 20, 2023 08:00

Limiting sandbox

	; run `sandbox-exec -f limit.sb $program`
	(version 1)
	(debug deny)
	(deny default)
	(import "/System/Library/Sandbox/Profiles/bsd.sb")
	(allow network-outbound)
	(deny network-outbound (remote tcp "localhost:*"))
	(allow process-fork)
	(allow process-exec*
	(subpath "/opt/homebrew/")

reinhrst / create-password.sh

Last active April 21, 2023 07:45

Correct horse battery staple: creates a password of english words. First param is number of words to use (default=3)

	TEMPDIR="$(mktemp -d)"
	NR_WORDS=${1:-3}
	cd "$TEMPDIR"
	curl 'https://raw.githubusercontent.com/first20hours/google-10000-english/master/google-10000-english.txt' \| grep -E "^.{4,8}$" \| sort \| uniq > wordlist.txt
	NR_LINES="$(wc -l wordlist.txt \| grep -oe '\d\+')"
	POSS="$(echo "$NR_LINES^$NR_WORDS" \| bc)"
	BITS="$(echo "l($POSS)/l(2)" \| bc -l)"
	CHARS="$(echo "l($POSS)/l(72)" \| bc -l)"
	printf 'We have %d lines; we willl take %d words; there are %.3e possibilities (%.1f bits of entropy, comparable to %.1f completely random chars (lower/upper/number/special))\n' "$NR_LINES" "$NR_WORDS" "$POSS" "$BITS" "$CHARS"
	if [[ $NR_LINES -lt "4000" ]]; then

reinhrst / tools.ts

Created February 20, 2023 08:54

Typescript object pick and omit functions

	// typescript versions of https://stackoverflow.com/a/56592365/1207489
	const pick = <T extends {}, K extends keyof T>(obj: T, ...keys: K[]) => (
	Object.fromEntries(
	keys
	.filter(key => key in obj)
	.map(key => [key, obj[key]])
	) as Pick<T, K>
	);

	const inclusivePick = <T extends {}, K extends (string \| number \| symbol)>(

reinhrst / npcolorsys.py

Last active December 9, 2022 10:14

RGB to HLS conversion and back

	import numpy as np

	def rgb_to_hls(rgb_array: np.ndarray) -> np.ndarray:
	"""
	Expects an array of shape (X, 3), each row being RGB colours.
	Returns an array of same size, each row being HLS colours.
	Like `colorsys` python module, all values are between 0 and 1.

	NOTE: like `colorsys`, this uses HLS rather than the more usual HSL
	"""

reinhrst / save-add-commit-push.vim

Created November 7, 2022 10:49

	" This function will first check if no changes are staged in git.
	" If so, it will save the current file, and then commit and push it.
	" The whole function is mapped to <leader>sacp
	" the function (when called manually) allows an argument that is the commit
	" message

	" Only use this for things where it makes sense to commit one file at a time
	" (like a dev log). Else make proper commits.

	function SaveAddCommitPushInfo(msg) abort

reinhrst / 3d design.scad

Created July 26, 2022 09:27

	scale([4, 4, 1]) {
	translate([20, 20, 0]) {linear_extrude (height=1) {circle(26);}};
	color([0, 0, 0]) {
	translate([0, 26, 0]) { linear_extrude (height=3){import("wifi.svg"); }; }
	translate([2, 15, 1]) { linear_extrude (height=1){rotate(90){text("wifi", size=5); }}; }
	translate([43, 12, 1]) { linear_extrude (height=1){rotate(90){text("hs3.pl", size=5); }}; }
	translate([16, -2, 1]) { linear_extrude (height=1){text("QR", size=5); }; }
	translate([28, 43, 1]) { linear_extrude (height=1){rotate(180)text("NFC", size=5);}; }
	}
	}

reinhrst / website.yaml

Created January 5, 2022 13:40

CloudFormation stack for website with react-routing and api-reverse-proxy

	AWSTemplateFormatVersion: 2010-09-09
	Description: Creates an https website
	Metadata: {}

	Parameters:
	HostedZoneName:
	Description: The HostedZoneName of the zone that you want to host the website on. This has to be in the same account, and has to be active (i.e. used as the DNS server for this domain).
	Type: String
	HostedZoneId:
	Description: The ID for the HostedZoneName

Claude reinhrst