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Go development environment on Windows with MSYS2

Normally, it is sufficient to grab the Go MSI installer from the website in order to set up the toolchain. However, some packages that provide Go wrappers for C libraries rely on cgo tool, which in turn, needs the GCC toolchain in order to build the glue code. Also, 3rd-party dependencies are usually hosted on services like GitHub, thus Git is also needed. This mini-guide illustrates how to setup a convenient development environment on Windows using MSYS2.

Find input audio rate beforehand thus:

ffmpeg -i input.mp4

Assuming input audio rate 44,100 Hz, this command will do the job:

ffmpeg -i input.mp4 -af asetrate=44100*3/4,atempo=4/3 output.mp4

The factor of 3/4 will change most female and “skinny” (chipmunk) voices into male and “fat” voices. Use 4/3 for the opposite:

This is a gist with a set of helpful performance tricks and best practices that I've found on the internet.

To remove a submodule you need to:

Delete the relevant section from the .gitmodules file.
Stage the .gitmodules changes git add .gitmodules
Delete the relevant section from .git/config.
Run git rm --cached path_to_submodule (no trailing slash).
Run rm -rf .git/modules/path_to_submodule (no trailing slash).
Commit git commit -m "Removed submodule "
Delete the now untracked submodule files rm -rf path_to_submodule

Secure NATS Cluster in Kubernetes

Creating the certificates

Generating the Root CA Certs

{
    "CN": "My Custom CA",
    "key": {

	// +build windows

	package screen

	import (
	"fmt"
	"image"
	"reflect"
	"syscall"
	"unsafe"

	package main

	import (
	"fmt"
	"log"
	"syscall"
	"unsafe"
	)

	var (

	# Vncserver service file for Debian or Ubuntu with systemd
	#
	# Install vncserver and tools
	# e.g. apt-get install tightvncserver autocutsel gksu
	#
	# 1. Copy this file to /etc/systemd/system/vncserver@:1.service
	# 2. Edit User=
	# e.g "User=paul"
	# 3. Edit the vncserver parameters appropriately in the ExecStart= line!
	# e.g. the -localhost option only allows connections from localhost (or via ssh tunnels)

	// RCL 05 June 2021

	/*
	verify with `openssl pkey -in <privatekey>` or `openssl pkey -in <privatekey> -pubout`
	the latter should match the publickey
	*/

	package main

	import (