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Videos uploaded by user β€œSimply Explained - Savjee”
How does a blockchain work - Simply Explained
 
06:00
What is a blockchain and how do they work? I'll explain why blockchains are so special in simple and plain English! πŸ’° Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/how-does-a-blockchain-work/ 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Views: 2738419 Simply Explained - Savjee
Smart contracts - Simply Explained
 
04:17
What are smart contracts and what do they have to do with blockchains and cryptocurrencies? Well, let's find in plain English! πŸ’° Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/smart-contracts/
Asymmetric encryption - Simply explained
 
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How does public-key cryptography work? What is a private key and a public key? Why is asymmetric encryption different from symmetric encryption? I'll explain all of these in plain English! 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Bitcoin's Lightning Network, Simply Explained!
 
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Bitcoin has a 7 transaction/second limit, so how can we overcome this? The Lightning Network is one of the proposals and in this video I'll explain how it works. πŸ’° Want to buy Bitcoin or Ethereum? Buy for $100 Bitcoin and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 -------------- 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee -------------- πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/bitcoin-lightning-network/
Cardano - Simply Explained
 
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Cardano (ADA) is gaining a lot of traction, but what makes it so special? In this video I'll explain all the problems that the Cardano team intends to solve. It boils down to: Scalability, Interoperability and Sustainability. Watch the video to learn more! 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/cardano/
Proof-of-Stake (vs proof-of-work)
 
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Cryptocurrencies use a ton of electricity because of mining. In recent years people started working on a different technique called Proof-of-Stake. Not only does it use less energy, it can also be more secure. (This video is a re-upload to fix a mistake I made in the previous one. Sorry about that!) πŸ“š Sources for this video: https://www.savjee.be/videos/simply-explained/proof-of-stake/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
What is a Bitcoin hard fork? Simply Explained!
 
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Recently we’ve heard about a Bitcoin hard fork. But what is a hard ford? What’s the impact on a cryptocurrency and why are they created? In this video I'll explain all of that in a simple way. πŸ’° Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 -------------- 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee -------------- πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/what-is-bitcoin-hard-fork/
IOTA's Tangle - Simply Explained
 
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How does IOTA's tangle work and how does it compare to a traditional blockchain like the one Bitcoin uses? In this video I'll explain these topics in a simple way! Correction: bitcoin was launched in 2008, not 2012! 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/iota-tangle-network/
IPFS - Simply Explained
 
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IPFS wants to decentralize the web and make it "Interplanetary", wow! But how does that work? Let's take a look at how IPFS works, how it can solve issue's like censorship and if it would really work across multiple planets! 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be πŸ“š Sources https://www.savjee.be/videos/simply-explained/ipfs-interplanetary-filesystem/
Meltdown & Spectre vulnerabilities - Simply Explained
 
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Two huge security issue's found in almost all modern processors. How do they work and what can we do about it? Let's find out! Make sure that you install all the latest patches for your operating system & software! 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be πŸ“š Sources can be found on my website: https://www.savjee.be/videos/simply-explained/meltdown-spectre/
ERC20 tokens - Simply Explained
 
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Not all cryptocurrencies have their own blockchains. Instead they run on top of other platforms like ERC20 tokens run on top of Ethereum. This video explains what these tokens are and why ERC20 was created. πŸ“š Sources Can be found on my website: https://www.savjee.be/videos/simply-explained/erc20-tokens/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
How cookies can track you (Simply Explained)
 
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Cookies can be used to invade your privacy and track you around the internet. But what are cookies and how do they work? They were initially invented to make our lives easier and are used to keep us logged in and to store things like shopping carts and preferences on our computers instead of on servers. However, clever companies can use cookies to track us around the internet. It can help them to build a profile of users and sell more targeted advertisements. In this video, I'll show you how cookies are working and why they're useful. Then we'll explore how cookies can be used to track people and finally, we'll discuss how you can prevent being followed. πŸ“š Sources https://www.savjee.be/videos/simply-explained/tracking-cookies/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Software powering Falcon 9 & Dragon - Simply Explained
 
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The Falcon 9, Falcon Heavy and Dragon are very advanced spacecrafts. So that got me thinking: what is powering these vehicles? In this video we'll take a look at what programming languages, operating systems, tools and hardware SpaceX uses to get these vehicles into orbit around the around. πŸ“š Sources for this video Can be found on my website: https://www.savjee.be/videos/simply-explained/falcon9-software-hardware/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Introduction (Get started with Jenkins part 1)
 
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In this video serie I will show you how to get started with Jenkins. We'll discuss things like automated deployment, running unit tests, integrating with BitBucket, safely storing credentials and much more! Want to learn more? Check out the rest: https://goo.gl/2uE4J5 β–Ί What is Jenkins? Jenkins is a Continuous integration and delivery tool written in Java. Basically it builds, test and deploys software projects. More info: http://jenkins-ci.org β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Integrate with GitHub: build after each commit (Get started with Jenkins, part 13)
 
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Integrate Jenkins with GitHub and trigger a build every time you make a commit to GitHub. This is essential for starting to use continuous integration within your project or team! Looking for a cheap server to host your Jenkins installation on? Signup for DigitalOcean and receive $10 free credit: https://m.do.co/c/5ce33a60cf22 Want to learn more? Check out the rest of the Jenkins videos: https://goo.gl/2uE4J5 β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Blockchains: how can they be used?
 
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We've all heard about Blockchains but how can they be used in the real world? How can we apply them? What problems can they solve? Well, in this video I'll give you 9 examples. Let's go! πŸ“š Sources A lot of research goes into making a video like this. Here are the sources that have been used: https://savjee.be/videos/simply-explained/blockchains-how-can-they-be-used/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Differential Privacy - Simply Explained
 
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Companies are collecting more and more data about us and that can cause harm. With differential privacy companies can learn more about their users without violating our privacy. πŸ“š Sources for this video can be found on my website: https://www.savjee.be/videos/simply-explained/differential-privacy/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Introduction (Getting started with AWS Lambda, part 1)
 
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In this series I'll cover topics like creating a function in Node.js, deploying them with automated tools, executing functions with HTTP calls, integrating them with other AWS services and much more! Lambda allows developers to deploy "serverless" applications. Obviously there are still servers involved, but you don't have to manage them yourself. Watch the next video (Writing our first function in node.js): https://www.youtube.com/watch?v=PEatXsXIkLc β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Integrate with BitBucket: build after each commit (Get started with Jenkins part 4)
 
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In this video I'll show you how to integrate Jenkins with BitBucket so that a build is started after you push a commit to BitBucket! Previous video (Get source code from Git to Jenkins): https://www.youtube.com/watch?v=7svnd9b-BmU Want to learn more? Check out the rest of the Jenkins videos: https://goo.gl/2uE4J5 β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Getting a free SSL certificate with AWS Certificate Manager for CloudFront (AWS howto)
 
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In this video I will show you how you can get a free SSL certificate for your CloudFront distribution with the AWS Certificate Manager. β–Ί What is SSL/TLS? SSL/TLS is a security technology that encrypts all traffic between your browser and a webserver. It also ensures that you're talking to the correct server and not with a man-in-the-middle. β–Ί Advantage of AWS Certificate Manager? It's free of charge, easy to use with other AWS services and it automatically renews your certificates when they expire. You can set it up once and than forget it! β–Ί Limitations As of right now you can only use the generated certificates with Elastic Load Balancers and CloudFront distributions. Amazon will probably extend the support to many more services in the future. β–Ί Want to know more? Read more about Certificate Manager on the Amazon website: https://aws.amazon.com/certificate-manager/ Looking for a way to easily deploy your website to AWS? Check out my tutorial on how to use s3_website: https://www.youtube.com/watch?v=sshXVtr29HU β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Hosting a static website on Amazon S3 (AWS howto)
 
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In this video I will show you how you can host a static website on Amazon S3. Want to automate this process? You can use s3_website to automatically setup your bucket and deploy your website. Check out my tutorial on how to use s3_website: https://www.youtube.com/watch?v=sshXVtr29HU β–Ί What is S3? S3 stands for Simple Storage Service, an online storage service that allows you to store unlimited files in the cloud. β–Ί Why would I use S3 instead of a regular host? Regular shared hosting providers charge you a fixed amount every month. That's regardless of the amount of files you store or the amount of visitors you get. Most cheaper webhosting companies also don't cope well with high traffic websites. Suddenly got featured on Reddit or Hacker News? A regular hosting provider might suspend your account for all the traffic! With S3 you only pay for what you use and it's highly scalable. β–Ί What does it cost? To give you an example of cost: when my blog receiver 1000 visitors per month I was paying just 6 cents to host it! Check out more detailed S3 pricing here: https://aws.amazon.com/s3/pricing/ Or use the calculator to estimate your AWS bill: http://calculator.s3.amazonaws.com/index.html β–Ί I want to read more! Check out my detailed blog post on how to host a Jekyll powered blog on S3: http://savjee.be/2013/02/howto-host-jekyll-blog-on-amazon-s3/ Want a free SSL certificate for your website? Check out my tutorial on Amazon Certificate Manager: https://www.youtube.com/watch?v=JbQbwum196g β–Ί Code snippet This is the bucket policy that I use for static website hosting: https://gist.github.com/Savjee/b4b3a21d143a30e7dc07 β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Connecting Lambda to API Gateway (Getting started with AWS Lambda, part 3)
 
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In this video I'll show you how to connect your Lambda function to API Gateway. Watch the next video (Passing information through API Gateway): https://youtu.be/afhNipd6TkE β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Passwords & hash functions (Simply Explained)
 
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How can companies store passwords safely and keep them away from hackers? Well let's find out! With all the data breaches lately, it's likely that the password of one of your accounts has been compromised. Hackers now might know the password you've used, but they also might not.. To understand why, we'll take a look at what methods a company can use to protect user passwords. We'll take a look at encryption, hash functions and a multilayer approach! πŸ“š Sources Can be found on my website: https://savjee.be/videos/simply-explained/hash-functions/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Ethereum's Constantinople Update & Difficulty Bomb
 
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Ethereum is about to get another big update. It's called Constantinople and will increase the performance of the network and introduce some new features. It will also delay the difficulty bomb. Here we'll take a bird's eye look at the new update. It'll be a hard fork, but we don't expect Ethereum to split into a new currency. πŸ“š Sources https://savjee.be/videos/simply-explained/ethereum-constantinople-update/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
First Lambda function in node.js (Getting started with AWS Lambda, part 2)
 
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In this video I'll show you how to create a simple random number generator up and running on Lambda. Watch the next video (Connecting Lambda to API Gateway): https://www.youtube.com/watch?v=DSrg7hG-jV4 β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Will GDPR kill blockchains?
 
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Will the new European privacy law kill blockchains? On first sight they seem incompatible with each other. So let's take a closer look! πŸ“š Sources This video would not be possible without the work of others. Used sources are listed here: https://www.savjee.be/videos/simply-explained/does-gdpr-kill-blockchains/ 🌍 Social https://twitter.com/savjee https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Interfaces (TypeScript tutorial, #6)
 
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Interfaces is one of TypeScript's biggest advantages over JavaScript. It allows you to define what properties objects should have. Continue watching my TypeScript tutorials: https://goo.gl/mOEotf β–Ί About me Follow me on Twitter: https://twitter.com/savjee Check out my blog: https://www.savjee.be Subscribe to newsletter: https://goo.gl/nueDfz Like my Facebook page: https://www.facebook.com/savjee
Implementing Proof-of-Work in Javascript (Blockchain, part 2)
 
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Adding the proof-of-work mechanism to our homemade Javascript blockchain. Proof-of-work will secure our blockchain against spammers and people trying to tamper with our blocks. β–Ί Source code Available on GitHub: https://github.com/SavjeeTutorials/SavjeeCoin β–Ίβ–Ίβ–Ί Buying Bitcoin or Ethereum Get $10 for free when buying through my affiliate link (thanks!): https://goo.gl/G9NQsu β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Creating a blockchain with Javascript (Blockchain, part 1)
 
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Learn how to write your own Blockchain with JavaScript. In this video I'll show you what is behind a blockchain by using simple code. It's not a complete implementation, but enough to understand how blockchains work and how they guarantee that blocks can never be changed. After creating our blockchain we'll try and tamper with it. This will demonstrate a blockchains ability to detect fraud. Next video (implementing proof-of-work): https://youtu.be/HneatE69814 πŸ’° Want to buy Bitcoin or Ethereum? Buy for $100 and get $10 free (through my affiliate link): https://www.coinbase.com/join/59284524822a3d0b19e11134 β–Ί Source code Available on GitHub: https://github.com/SavjeeTutorials/SavjeeCoin β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Debug TypeScript with Visual Studio Code (TypeScript tutorial, #10)
 
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In this video I'll show you how to debug TypeScript code with Visual Studio Code's built-in debugger. Continue watching my TypeScript tutorials: https://goo.gl/mOEotf β–Ί About me Follow me on Twitter: https://twitter.com/savjee Check out my blog: https://www.savjee.be Subscribe to newsletter: https://goo.gl/nueDfz Like my Facebook page: https://www.facebook.com/savjee
Introduction (TypeScript tutorial, #1)
 
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This is an introduction video to my "Learning TypeScript" series. In the next videos I will show you how to start using TypeScript. I'll discuss the benefits of TypeScript and how to use it step by step. TypeScript compiles to regular JavaScript so it can run in any browser or on node.js. There's no reason not to use it! Interested? Continue watching the TypeScript tutorials: https://goo.gl/mOEotf β–Ί About me Follow me on Twitter: https://twitter.com/savjee Check out my blog: https://www.savjee.be Subscribe to my newsletter: https://goo.gl/nueDfz Like my Facebook page: https://www.facebook.com/savjee
Deploy a website to FTP server (First look at BitBucket Pipelines, part 4)
 
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In this video I'll show you how you can deploy your website to an FTP server with BitBucket Pipelines. Watch the next video (Deploy a static website to Amazon S3 with s3_website): https://youtu.be/57pwPxJer1E Or watch the previous video (Using environment variables): https://www.youtube.com/watch?v=RVwkT4oHDd8 β–Ί About BitBucket Pipelines BitBucket Pipelines is a continuous integration tool built-in to Atlassian's BitBucket service. It's currently in closed beta. More information on the Atlassian website: http://blogs.atlassian.com/2016/05/introducing-bitbucket-pipelines-beta-continuous-delivery-built-within-bitbucket/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Using scheduled events to trigger Lambda functions (Getting started with AWS Lambda, part 6)
 
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In this video I'll show you how to use scheduled events to trigger Lambda functions on a regular interval. This can be useful if you have to perform maintenance on a database, send out periodic emails, checking the status of different services, ... Watch the next video (Writing data to DyanmoDB): https://www.youtube.com/watch?v=G_-aEXmluq8 Watch the previous video (Deploying Lambda functions with Apex): https://youtu.be/u7spDymJqmc β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Installing Jenkins on Ubuntu Server 15.10 (Get started with Jenkins part 2)
 
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In this video we will install Jenkins onto Ubuntu Server 15.10 or 16.10. I'll also show how to install the dependencies such as the JRE (OpenJDK). Previous video (Introduction): https://www.youtube.com/watch?v=dGzHRlLtyEk Next video (Getting source code from Git into Jenkins): https://www.youtube.com/watch?v=Ej3zRO2UG_w Want to learn more? Check out the rest of the serie: https://goo.gl/2uE4J5 β–Ί Install commands The commands used in this video: https://github.com/SavjeeTutorials/getting-started-with-jenkins/tree/master/02-installing-jenkins Official Jenkins installation instructions: https://wiki.jenkins-ci.org/display/JENKINS/Installing+Jenkins β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
How do computers keep time?
 
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My first laptop lost track of time, so that got me thinking: how do computers keep track of time? Can they do it forever? And why don't they lose track of time when we turn them off? Turns out the answer is a combination of processor, quartz crystal and the internet. They all work together to keep time. πŸ“š Sources https://www.savjee.be/videos/simply-explained/how-computers-keep-time/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
AppCleaner (Uninstall Mac apps completely)
 
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AppCleaner is the uninstaller that Apple forgot to include with macOS. It allows you to *completely* remove any application from your Mac. This includes the apps preferences, caches and other hidden files. AppCleaner is available for free at: https://freemacsoft.net/appcleaner/ Consider making a donation if you like the app. β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Zero Knowledge Proof
 
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Protecting your online privacy could become a lot easier with Zero Knowledge Proof. A technique that allows you to prove things without disclosing what it is you're proving. Need to have a certain age before you can signup for a service? You can deliver a proof that you meet the criteria without sharing your actual age. Or you could prove to your bank that your salary is sufficient to get a loan, without revealing your real salary. πŸ“š Sources https://savjee.be/videos/simply-explained/zero-knowledge-proof/ 🌍 Social Twitter: https://twitter.com/savjee Facebook: https://www.facebook.com/savjee ✏️ Check out my blog https://www.savjee.be
Getting source code from git (Get started with Jenkins part 3)
 
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In this video I'll show you how to import your source code from a git repository into Jenkins. Previous video (Installing Jenkins): https://www.youtube.com/watch?v=wc8DEKoxml4 Want to learn more? Check out the rest of the Jenkins videos: https://goo.gl/2uE4J5 β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Writing data to DynamoDB (Getting started with AWS Lambda, part 7)
 
08:04
In this video I'm going to show you how to connect Lambda functions to DynamoDB. We'll create a simple online guestbook system to demonstrate this. Watch the next video: Reading data from DynamoDB: https://www.youtube.com/watch?v=P8okmPWIAcQ Watch the previous video: Using scheduled events to trigger Lambda functions https://www.youtube.com/watch?v=1nxIKzFBkRY β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Private repositories, GitHub & BitBucket (Get started with Jenkins, part 14)
 
06:34
Learn how to use private GitHub/BitBucket repositories with Jenkins. I'll show you how to generate an SSH keypair and how to configure a "deploy key" on GitHub and an "access key" on BitBucket. Want to learn more? Check out the rest of the Jenkins videos: https://goo.gl/2uE4J5 Looking for a cheap server to host your Jenkins? Signup for DigitalOcean and receive $10 free credit: https://m.do.co/c/5ce33a60cf22 β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Passing information through API Gateway (Getting started with AWS Lambda, part 4)
 
06:34
In this video I'll show you how to capture user input in API Gateway and pass it to your Lambda functions. This is also my first video in 1440p, so let me know if you notice the extra quality. Watch the next video (Deploying Lambda functions with Apex): https://youtu.be/u7spDymJqmc Watch the previous video (Connecting Lambda to API Gateway): https://youtu.be/DSrg7hG-jV4 β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Integrate with Slack (Get started with Jenkins, #12)
 
06:34
Setup Jenkins to post to your Slack channel whenever a build starts, ends, fails or succeeds. That way you can bring your entire team up-to-date. β–Ί Watch my other Jenkins tutorials: https://goo.gl/2uE4J5 β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: https://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Classes (TypeScript tutorial, #7)
 
06:41
Creating classes in regular JavaScript is difficult and feels weird because it uses prototype-based inheritance. In TypeScript you can use classes in almost the same way as in Java, C# or many other object-oriented programming languages. Continue watching my TypeScript tutorials: https://goo.gl/mOEotf β–Ί About me Follow me on Twitter: https://twitter.com/savjee Check out my blog: https://www.savjee.be Subscribe to newsletter: https://goo.gl/nueDfz Like my Facebook page: https://www.facebook.com/savjee
Deploying Lambda functions with Apex (Getting started with AWS Lambda, part 5)
 
09:08
In this video I'll show you how to use Apex to deploy Lambda functions. Watch the previous video (Passing information through API Gateway): https://youtu.be/afhNipd6TkE β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Configure AWS credentials (Serverless framework tutorial, #5)
 
04:05
Learn how to create AWS credentials and then use them with the Serverless framework. This is the final step before we can start deploying functions to AWS Lambda! Continue watching my Serverless tutorials: https://goo.gl/kwUhbD Have questions? Leave a comment on: https://savjee.be/videos/serverless-framework-basics/configure-aws-credentials/ β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee
Reading data from DynamoDB tables (Getting started with AWS Lambda, part 8)
 
06:39
In this video I'm going to show you how you can use Lambda to read data out of DynamoDB tables. Watch the next video: Creating a front-end for Lambda functions https://www.youtube.com/watch?v=mfAT38B_uhw Watch the previous video: Writing data to DynamoDB https://youtu.be/G_-aEXmluq8 β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Creating a front-end for Lambda functions (Getting started with AWS Lambda, part 9)
 
11:04
In this video I'll show you how to create a front-end for your Lambda functions. I'm going to build a front-end for the guestbook functions that I showed you in the previous 2 video's. Note: the examples in this video are pretty basic. I just use jQuery and very simple DOM manipulations. I also enable CORS for any domain name on API Gateway. This is just to show you how to create full applications with the Lambda ecosystem. Make sure to properly secure your API's and use decent front-end frameworks ;) Watch the previous video (Reading data from DyanmoDB): https://www.youtube.com/watch?v=P8okmPWIAcQ Watch the rest of this series: https://www.youtube.com/playlist?list=PLzvRQMJ9HDiSQMe68cti8cupI0mzLk1Gc β–Ί About Lambda AWS Lambda is a compute service where you can upload your code to AWS Lambda and the service can run the code on your behalf using AWS infrastructure. More information on Amazon's website: http://docs.aws.amazon.com/lambda/latest/dg/welcome.html β–Ί Building an anagram solver with Lambda Check out how I builded an anagram solver with Lambda, API Gateway, DynamoDB, S3 and CloudFront: https://savjee.be/2016/01/Building-serverless-anagram-solver-with-aws-dynamodb-lambda-s3-cloudfront-api-gateway/ β–Ί Meal planning with Lambda and Trello Check out how my girlfriend and I use Lambda and Trello as a weekly meal planner: https://savjee.be/2016/07/Meal-planning-with-trello-and-aws-lambda/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
Running PHPUnit tests (First look at BitBucket Pipelines, part 2)
 
06:10
In this video I'll show you how to run PHPUnit tests on BitBucket Pipelines. Watch the next video (Using environment variables): https://www.youtube.com/watch?v=RVwkT4oHDd8 Or watch the previous video (Introduction): https://www.youtube.com/watch?v=5mtxVkZbJcg β–Ί About BitBucket Pipelines BitBucket Pipelines is a continuous integration tool built-in to Atlassian's BitBucket service. It's currently in closed beta. More information on the Atlassian website: http://blogs.atlassian.com/2016/05/introducing-bitbucket-pipelines-beta-continuous-delivery-built-within-bitbucket/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee
What is Lambda? (Serverless framework tutorial, #2)
 
03:13
What is so special about AWS Lambda? In this video we will look at why people like Lambda so much. I'll describe what the service is, what it can be used for and why it is much better then running virtual machines or containers. Continue watching my Serverless tutorials: https://goo.gl/kwUhbD Have questions? Leave a comment on: https://savjee.be/videos/serverless-framework-basics/what-is-aws-lambda/ β–Ί About me 🐦 Follow me on Twitter: https://twitter.com/savjee ✏️ Check out my blog: https://www.savjee.be πŸ‘πŸ» Like my Facebook page: https://www.facebook.com/savjee βœ‰οΈ Subscribe to newsletter: https://goo.gl/nueDfz
Deploy static website with s3_website (First look at BitBucket Pipelines, part 5)
 
04:32
In this video I'll show you how you can deploy your website to Amazon S3 with s3_website and BitBucket Pipelines Watch the previous video (Deploy a website to a FTP server): https://youtu.be/8HZhHtZebdw Or checkout the rest of this series: https://www.youtube.com/playlist?list=PLzvRQMJ9HDiT-KJHqyY-79dpmIo9lrMcy β–Ί About BitBucket Pipelines BitBucket Pipelines is a continuous integration tool built-in to Atlassian's BitBucket service. It's currently in closed beta. More information on the Atlassian website: http://blogs.atlassian.com/2016/05/introducing-bitbucket-pipelines-beta-continuous-delivery-built-within-bitbucket/ β–Ί About me Follow me on Twitter: https://twitter.com/xafke Check out my blog: http://www.savjee.be Like my Facebook page: https://www.facebook.com/savjee