Ricardo Avila ravila4

Processing JSON using jq

jq is useful to slice, filter, map and transform structured json data.

Installing jq

On Mac OS

brew install jq

Raspberry Pi on Internet via reverse SSH tunnel

HackerNews discussed this with many alternative solutions: https://news.ycombinator.com/item?id=24893615

I already have my own domain name: mydomain.com. I wanted to be able to run some webapps on my Raspberry Pi 4B running perpetually at home in headless mode (just needs 5W power and wireless internet). I wanted to be able to access these apps from public Internet. Dynamic DNS wasn't an option because my ISP blocks all incoming traffic. ngrok would work but the free plan is too restrictive.

I bought a cheap 2GB RAM, 20GB disk VM + a 25GB volume on Hetzner for about 4 EUR/month. Hetzner gave me a static IP for it. I haven't purchased a floating IP yet.

	/* Compile with `make CFLAGS='-std=c99' LOADLIBES='-lX11' buttonpress` */

	#include <X11/Xlib.h>
	#include <stdio.h>
	#include <stdbool.h>
	#include <stdlib.h>

	Window GetWindowFromID(Display *display, Window start, int targetid, int level) {
	Window root, parent, *children;
	unsigned int nchildren;

	#!/bin/bash
	# About: Bash script to create new Jekyll posts
	# Author: @AamnahAkram
	# URL: https://gist.github.com/aamnah/f89fca7906f66f6f6a12
	# Description: This is a more advanced version of the script which can
	# - take options
	# - has color coded status messages
	# - improved code
	# - lowercase permalinks
	# - usage message

	Puts on glasses:

	(•_•)
	( •_•)>⌐■-■
	(⌐■_■)

	Takes off glasses ("mother of god..."):

	(⌐■_■)
	( •_•)>⌐■-■