Rui Carmo rcarmo

brew is a bad neighbor

This isn't a guide about locking down homebrew so that it can't touch the rest of your system security-wise.

This guide doesn't fix the inherent security issues of a package management system that will literally yell at you if you try to do something about "huh, maybe it's not great my executables are writeable by my account without requiring authorization first".

But it absolutely is a guide about shoving it into its own little corner so that you can take it or leave it as you see fit, instead of just letting the project do what it likes like completely taking over permissions and ownership of a directory that might be in use by other software on your Mac and stomping all over their contents.

By following this guide you will:

Never have to run sudo to forcefully change permissions of some directory to be owned by your account

Guide: Run FreeBSD 13.1-RELEASE for ARM64 in QEMU on Apple Silicon Mac (MacBook Pro M1, etc) with HVF acceleration (Hypervisor.framework)

This guide was adapted from https://gist.github.com/niw/e4313b9c14e968764a52375da41b4278#running-ubuntu-server-for-arm64

Running FreeBSD 13.1-RELEASE for ARM64

Install Xcode from App Store or install Command Line Tools on your Mac running on Apple Silicon.

So you want to modify the text of a PDF by hand...

If you, like me, resent every dollar spent on commercial PDF tools, you might want to know how to change the text content of a PDF without having to pay for Adobe Acrobat or another PDF tool. I didn't see an obvious open-source tool that lets you dig into PDF internals, but I did discover a few useful facts about how PDFs are structured that I think may prove useful to others (or myself) in the future. They are recorded here. They are surely not universally applicable --
the PDF standard is truly Byzantine -- but they worked for my case.

	# synthy-balls.py -- use rotary encoder to launch balls that play notes when bouncing
	# 20 Aug 2024 - @todbot / Tod Kurt
	# video demo: https://youtu.be/cCTPtk6KQQk
	import time, random, math
	import board
	import busio, displayio, terminalio
	import rotaryio, keypad
	import audiobusio, audiocore, audiomixer, synthio
	import gc9a01
	#from adafruit_display_text import bitmap_label as label

	***Pi-Mox setup on raspberry pi 4b (cm4 you will need add the appropriate steps for your hw setup)
	***None of this is "Prod" ready so use at your own risk, your VM's/Containers are your own responsibility. You should already have adequate backups etc.

	***Raspberry PI OS setup

	Install raspbian x64 lite on raspberry pi

	pull the latest copy of Raspberry PI OS x64 lite based on debian 11 bullseye from here: https://www.raspberrypi.com/software/operating-systems/#raspberry-pi-os-64-bit

	open imager, click choose os, scroll to the bottom and select custom. open the image "2023-05-03-raspios-bullseye-arm64-lite.img.xz"

	// I'm tired of extensions that automatically:
	// - show welcome pages / walkthroughs
	// - show release notes
	// - send telemetry
	// - recommend things
	//
	// This disables all of that stuff.
	// If you have more config, leave a comment so I can add it!!

	{

	#!/usr/bin/env bash

	set -e

	sudo -v

	sudo apt-get update
	sudo apt-get dist-upgrade -y
	sudo apt-get autoremove -y

	// This script is deprecated, use https://github.com/OverlappingElvis/blob-opera-midi instead!

	const fs = require(`fs`)
	const _ = require(`lodash`)
	const { Player } = require(`midi-player-js`)
	const blessed = require(`blessed`)
	const contrib = require(`blessed-contrib`)
	const Alea = require(`alea`)

	const VOWELS = _.range(4)

	THIS ARE MY NOTES OF BUILDING AN INSTALLING XORGXRDP AND XRDP WITH GPU ACCELERATION
	TESTED ON DEBIAN 9.13

	-- Build XorgXrdp with GPU acceleration ("script" - to be adjusted to your needs) : --

	## << BUILD AND INSTALL SCRIPT START >> ##
	#!/bin/bash
	# Install Latest XRDP with XORGXRDP

	# README

	1. Configurar IPv4 estático e IPv6 estático no pihole (YMMV)
	192.168.1.2 e 2001:818:xxxx::192:168:1:2 no meu caso

	2. Configurar DNS uplink do pihole igual ao IP do Router (192.168.1.1)

	3. Configurar Router

	Huawei HS8247W (Smart Router 2)
	1. Configurações Avançadas -> LAN -> Configuração de DHCP
	Servidor DNS Primário: 192.168.1.2