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Installing Postman

Step 1

If any version of postman is installed we need to remove it

sudo rm -rf /opt/Postman

Step 2

Instructions how to install Debian using debootstrap. Below instructions were verified to work with debootstrapping Debian 11.

Change scrollback limit for tmux buffer on iterm

Original stackoverflow post here

Solution

iTerm2 build 1.0.0.20130302 has an preference which enables it to capture scrollback even when a so-called hard status line is present:
- https://i.stack.imgur.com/QS1vB.png
- Preferences -> Terminal -> check "Save lines to scrollback when an app status bar is present"
maybe also check "Save lines to scrollback in alternate screen mode"

Generate a PDF from a Markdown file with Pandoc

Easy Steps For Mac OS

Have Homebrew installed and a markdown file you want to render to PDF.
Install Pandoc brew install pandoc
Install basictex brew cask install basictex - needed for the pdflatex tool.
Symlink the pdflatex to your /usr/local/bin so pandoc can easily find it. ln -s /Library/TeX/Root/bin/x86_64-darwin/pdflatex /usr/local/bin/pdflatex
Use Pandoc to generate a PDF from a Markdown file. pandoc input.md -o output.pdf

By default the margins are pretty large. To optionally change the margins: pandoc input.md -o output.pdf -V geometry:margin=1in

QEMU with VirtIO GPU Vulkan Support

With its latest reales qemu added the Venus patches so that virtio-gpu now support venus encapsulation for vulkan. This is one more piece to the puzzle towards full Vulkan support.

An outdated blog post on clollabora described in 2021 how to enable 3D acceleration of Vulkan applications in QEMU through the Venus experimental Vulkan driver for VirtIO-GPU with a local development environment. Following up on the outdated write up, this is how its done today.

Definitions

Let's start with the brief description of the projects mentioned in the post & extend them:

Upgrading PostgreSQL in Windows

The official documentation for PostgreSQL provides a guide to upgrading using pg_upgrade. However, it can be a bit like a treasure hunt with hidden traps. This gist will walk you through a clear and robust method for upgrading PostgreSQL on Windows, using the upgrade from version 14 to 16 as an example.

1. Install the New Version of PostgreSQL

Before you embark on the upgrade journey, make sure you have the new version installed. This is because the pg_upgrade utility used during the upgrade process belongs to the newer version.

To get started, visit the official download page, download the installer, and run it. A word of caution: do not overwrite the old installation, as you'll need its binaries and data for the upgrade.

	#!/usr/bin/env bash
	###########################################################################################################
	# Bash Script of this Documentation :
	# https://openzfs.github.io/openzfs-docs/Getting%20Started/Debian/Debian%20Bullseye%20Root%20on%20ZFS.html#debian-bullseye-root-on-zfs
	#
	# Copyright © 2022 - installer.sh
	# Yasin Karabulak
	# [email protected]
	# https://github.com/unique1984
	#

	//
	// main.swift
	// PokerTest
	//
	// Created by Reza Shirazian on 11/8/19.
	// Copyright © 2019 Reza Shirazian. All rights reserved.
	//

	import Foundation

	Latency Comparison Numbers (~2012)
	----------------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	// routes1.go
	func Routes1(mux *http.ServeMux) {
	mux.Handle("/route1/a", handler1A)
	mux.Handle("/route1/b", handler1B)
	mux.Handle("/route1/c", handler1C)
	}

	// routes2.go
	func Routes2(mux *http.ServeMux) {
	mux.Handle("/route2/x", handler2X)