Dat Nguyen nguyendat

Had 15 github followers in 2019? You can get about $4kAUD of crypto for minimal effort.

Explain this scam

That's legitimately a good default position to hold, however, in this case, the free money is a function of time, and not only charity.

In February 2020, in order to promote Handshake (HNS) to developers, an airdrop was offered to any Github user with more than 15 followers. The Airdrop would give you 4246HNS, at the time worth around at $0.08USD per coin, for a total of $339.68USD, pretty generous!

Today, 4246HNS is worth around $4000 dollarydoos, and there are plenty of github users who haven't claimed theirs.

Lambdas, Functions, Functors and Monads

Intro

If you've been exposed to lambdas (whether in Java or Kotlin), you already know at least the basics of what lambdas are, the syntax for using them, that they're more succinct than instantiating anonymous classes etc etc.

Rather than talking about that, I figured we would talk about functions and lambdas on a higher level.

I think most of us are familiar with map and, having used it quite a bit, have an intuitive understanding of what any given call to map will do.

Does anyone know a bit more about map, what it is and where it came from?

Snippets collected/distilled from gists/blog posts/etc. Combined here for fellow web-searchers -- goal is to have an easy/minimal sink for in-app use, and then forward that stream in another process.

Read camera, push to UDP sink (usually from appsrc, here v4l2 camera):

$ gst-launch-1.0 -vvvv v4l2src ! 'video/x-raw, width=640, height=480, framerate=30/1' ! videoconvert ! x264enc pass=qual quantizer=20 tune=zerolatency ! rtph264pay ! udpsink port=1234

Visualize above:

$ gst-launch-1.0 -vvv udpsrc port=1234 ! "application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264" ! rtph264depay ! h264parse ! decodebin ! videoconvert ! xvimagesink sync=false

A curated list of AWS resources to prepare for the AWS Certifications

A curated list of awesome AWS resources you need to prepare for the all 5 AWS Certifications. This gist will include: open source repos, blogs & blogposts, ebooks, PDF, whitepapers, video courses, free lecture, slides, sample test and many other resources.

Instructions

CloudFlare is an awesome reverse cache proxy and CDN that provides DNS, free HTTPS (TLS) support, best-in-class performance settings (gzip, SDCH, HTTP/2, sane Cache-Control and E-Tag headers, etc.), minification, etc.

Make sure you have registered a domain name.
Sign up for CloudFlare and create an account for your domain.
In your domain registrar's admin panel, point the nameservers to CloudFlare's (refer to this awesome list of links for instructions for various registrars).
From the CloudFlare settings for that domain, enable HTTPS/SSL and set up a Page Rule to force HTTPS redirects. (If you want to get fancy, you can also enable automatic minification for text-based assets [HTML/CSS/JS/SVG/etc.], which is a pretty cool feature if you don't want already have a build step for minification.)
If you

	import java.lang.invoke.CallSite;
	import java.lang.invoke.LambdaMetafactory;
	import java.lang.invoke.MethodHandle;
	import java.lang.invoke.MethodHandles;
	import java.lang.invoke.MethodType;
	import java.lang.reflect.Method;
	import java.lang.reflect.Modifier;
	import java.util.Arrays;
	import java.util.LinkedList;
	import java.util.function.BiFunction;

	1. Boot into Recovery mode (by pressing CMD+R while boot macOS)

	2. Unmount APFS volumes automaticaly mounted by Recovery (where /dev/disk2 is your APFS container)

	$ diskutil unmountDisk /dev/disk2
	Unmount of all volumes on disk2 was successful

	3. Unlock APFS volumes (in case FileVault enabled for this volume)

	$ diskutil apfs unlockVolume /dev/disk2s1 -nomount

	import SwiftUI
	import WebKit
	import Combine

	class WebViewData: ObservableObject {
	@Published var loading: Bool = false
	@Published var scrollPercent: Float = 0
	@Published var url: URL? = nil
	@Published var urlBar: String = "https://nasa.gov"

	{
	"meta": {
	"theme": "professional",
	"lastModified": "2025-03-04T15:46:09.721Z"
	},
	"basics": {
	"name": "Thomas Davis",
	"phone": "0411021021",
	"label": "Web Developer",
	"image": "https://avatars0.githubusercontent.com/u/416209?s=460&u=38f220a2c9c658141804f881c334c594eb1642ac&v=4",

	private val HEX_CHARS = "0123456789ABCDEF".toCharArray()

	fun ByteArray.toHex() : String{
	val result = StringBuffer()

	forEach {
	val octet = it.toInt()
	val firstIndex = (octet and 0xF0).ushr(4)
	val secondIndex = octet and 0x0F
	result.append(HEX_CHARS[firstIndex])