jm42

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jm42 / ethers-provider-ethereum.js

Created August 15, 2021 23:22

	import { ethers } from "ethers"
	import { update } from "./store"

	const provider = new ethers.providers.Web3Provider(window.ethereum)

	provider.on("network", (oldNetwork, newNetwork) => update(state => ({
	...state,
	chainId: ( newNetwork ?? oldNetwork ).chainId
	})))

jm42 / 3box-key.txt

Created May 27, 2021 18:40

3Box Profile Verification

did:3:bafyreieq4lcvrv5buxh3v3izjfb7xdjeqmc4gq7usqhjwna5fmvnbwnrr4

jm42 / constants.js

Created April 10, 2021 21:29

Generate RSA key per canvas

	module.exports = Object.freeze({
	/** RSA bits for key pair generation */
	KEY_BITS: 512,
	})

jm42 / cw-dashboard-alarm.yml

Created April 5, 2021 17:05

Example resource to create a CloudWatch Dashboard for an Alarm in CloudFormation


	CloudWatchDashboard:
	Type: AWS::CloudWatch::Dashboard
	Properties:
	DashboardName: !Sub ${AWS::StackName}
	DashboardBody: !Sub
	- \|
	{
	"periodOverride": "inherit",
	"widgets": [

jm42 / migrate.js

Created March 4, 2021 03:13

Migration (node, pg, ioredis)

	const fs = require('fs')
	const path = require('path')

	/** Creates the initial "migrations" table. Even if this is run
	* every migration is not that much weight. */
	async function initSchema(pool, table) {
	await pool.query(`CREATE TABLE IF NOT EXISTS ${pool.escapeIdentifier(table)} (version SMALLINT PRIMARY KEY)`)
	}

	async function getVersions(pool, table) {

jm42 / i3-config

Last active February 10, 2021 21:10

	# i3 config file (v4)
	#
	# Please see https://i3wm.org/docs/userguide.html for a complete reference!

	set $mod Mod4

	# Autostart
	exec --no-startup-id nitrogen --restore &
	exec --no-startup-id picom -CGb

jm42 / draw-compass.html

Created October 30, 2020 18:15

Draw an SVG compass

	<!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">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Compass</title>
	</head>
	<body>
	<svg id="compass" width="220" height="220" viewBox="0 0 220 220" xmlns="http://www.w3.org/2000/svg">

jm42 / display.js

Created July 9, 2020 18:05

canvas-library

jm42 / countries-csv2json.py

Created April 8, 2020 20:40

Countries Bounds


	import csv
	import json

	data = {}

	with open('countries.csv', 'r') as fr:
	reader = csv.reader(fr, dialect='excel-tab')

	for row in reader:

jm42 / boot_config.txt

Created June 23, 2019 19:38

RPi LCD rotate upside-down

lcd_rotate=2