Scott Hanselman

Don't forget about the GitHub Command Line

March 02, 2021 Comment on this post [0] Posted in Open Source
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I spend so much time at the command line using the Windows Terminal. Then I spend a ton of time using git at the command line. But then I ALT+TAB over to GitHub and mess around in the browser.

Why have I been sleeping on the GitHub CLI? - there's a command line interface for GitHub!

I installed with "winget install GitHub.cli" but you can get it from https://cli.github.com if you like.

Then you run gh auth login once:

gh auth login
? What account do you want to log into? GitHub.com
? What is your preferred protocol for Git operations? HTTPS
? Authenticate Git with your GitHub credentials? Yes
? How would you like to authenticate GitHub CLI? Login with a web browser

Now you've got a new command "gh" to play with!

I went over to one of my local git clones for the Hanselminutes Podcast website and I can now list the open Pull Requests from the command line!

Open PRs on GitHub

Here's the real time saver that Dan Wahlin reminded me about: gh repo create!

> git init
Initialized empty Git repository in D:/github/ghcliblogpost/.git/
> gh repo create
? Repository name ghcliblogpost
? Repository description This is a test for my GH CLI Blog post
? Visibility Public
? This will add an "origin" git remote to your local repository. Continue? Yes
✓ Created repository shanselman/ghcliblogpost on GitHub
✓ Added remote https://github.com/shanselman/ghcliblogpost.git

Fantastic! You can even gh issue create!

gh issue create

Creating issue in shanselman/hanselminutes-core

? Title This is a test issue
? Body <Received>
? What's next? Submit
https://github.com/shanselman/hanselminutes-core/issues/219

Checking out a Pull Request is a great time saver as well. Go check out http://cli.github.com/ and see how it can help you today!


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About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Crowbits are Electronic Programmable LEGO Compatible Blocks for STEM Education

February 25, 2021 Comment on this post [3] Posted in Reviews
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CrowBits from ElecrowLate last year I blogged about the Elecrow CrowPi2 Raspberry Pi Laptop. The folks at Elecrow are great and I've used their original CrowPi many times with the kids at and talks. None of these links are affiliate links and I am getting no kickbacks from the company - I'm just a fan and own two of their products.

As such I was excited to see their new Kickstarter called CrowBits. These are magnetic, programmable, electronic blocks that are also LEGO element compatible, which as you likely know, is a huge plus for my family. I've blogged a lot about STEM toys before, usually at Christmas, but this is a lovely spring surprise!

The devices are ESP32, Arduino and Micro:bit compatible, and there's over 80 of them. 30 of them need no programming. The whole system has a Scratch 3.0 software sitting on top, so my kids and I are already familiar with how to program these. If you're not familiar, MIT's Scratch is a visual block language that abstracts away the text aspects of programming for visually nested blocks. It's very intuitive.

Strong ability to expand

Since the people at Elecrow have successfully delivered on all their previous KickStarters and I'm personally holding both CrowPis from those Kickstarters, I have high confidence in their ability to deliver the CrowBits.

image

Even better, I'm seeing in the comments on the Kickstarter that the company is aiming to allow their programming system to run on the Raspberry Pi CrowPi devices I already own, so that's a bonus that it'll all work together.

Go check it out https://www.kickstarter.com/projects/elecrow/crowbits-electronic-blocks-for-stem-education-at-any-level


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About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Fix for Elgato Key Light not found by Control Center

February 23, 2021 Comment on this post [7] Posted in Bugs
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Elgato Control CenterSometimes blogging means lots of long form essays that take weeks to write and drop lots of wisdom.

However, many times blogging is just keeping track of a fix for a nagging problem. There may just be 5 or 6 of us with this issue, but if you're that person, this blog post is for you! Welcome to the solving of the issue you just googled for.

I recently bought an Elgato Key Light, and when I purchased it I did not realize that it did not have any external controls. You can only control the light with Wi-Fi and remotely. Personally I think that's a product flaw, this means I'm always going to have to be dependent on their software, and I can't just turn the thing to another level or color with a button.

The biggest issue with this light - and other picky IoT devices - is that it doesn't like my network. It happens to be the one and only device on my Ubiquiti network that doesn't seem to want to get along with the others in the house. It uses multicast DNS in the form of Apple's weirdo Bonjour service to broadcast itself, and it's notoriously hard to get the Elgato Control Center software to find the light. I know it's on the network, I can see its IP.

There's lots of blog posts with folks trying to solve this issue, and if you found your way to this blog post I figure that you've already done the obvious things like opening the firewall, turning on multicast DNS at the router level, and now you're just sick of it.

Here's my brute force solution that made my Key Light show up in Control Center.

First, I'm assuming a few things:

  • That you got the Elgato Key Light on to your network and you can find its IP Address.
  • That you installed the Elgato Control Center software on your PC

I put my Settings.xml file in this gist but the salient points are the SerialNumber and the IpAddress. You'll find the Serial Number on a sticker on the back of the light. You'll find the IP address in your router's IP table.

My Elgato Key Light's IP Address

Go to this folder on your PC

C:\Users\YOURNAME\AppData\Roaming\Elgato\ControlCenter

Make a copy of the settings.xml in that folder so you don't blame me with this whole affair goes horribly wrong.

This is not the complete settings.xml, again that's in the gist, but this was the missing piece for me.

<Accessories>
<Accessory>
<Name>Elgato Key Light Air E424</Name>
<UserDefinedName />
<UniqueID>Elgato Key Light Air E424 (3C:6A:9D:15:5E:B6)</UniqueID>
<IsHidden>false</IsHidden>
<HostName>elgato-key-light-air-e424</HostName>
<IpAddress>192.168.1.44</IpAddress>
<DNSSuffix>localdomain</DNSSuffix>
<ServiceType>_elg._tcp</ServiceType>
<Manufacturer>Elgato</Manufacturer>
<Model>Elgato Key Light Air 20LAB9901</Model>
<DeviceType>200</DeviceType>
<LightStripIsTemperatureColorSelected>false</LightStripIsTemperatureColorSelected>
<DeviceSettingsLightStripIsTemperatureColorDefault>false</DeviceSettingsLightStripIsTemperatureColorDefault>
<SerialNumber>CW39J1A17111</SerialNumber>
</Accessory>
</Accessories>

Change the Elgato Settings.xml to include YOUR light's serial number and IP address. Start Control Center.

Elgato Control Center

 

BTW, I also found this lovely blog post from Trevor Sullivan where he shows the Elgato Key Light internal API (on /elgato/lights) and a PowerShell Module that lets you change the Elgato Key light with script.

To be clear, this doesn't excuse not having buttons, but it's a start. Hope this helps both of you with this problem I had!


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About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Free Windows 10 development virtual machines for HyperV, Parallels, VirtualBox, and VMWare

February 18, 2021 Comment on this post [9] Posted in Win10
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You probably know that you can download free developer tools for Windows 10 up at the Windows Dev Center here.

Visual Studio Community IS effectively the Pro SKU and is free for Open Source. You may even have a "Take Home" license at your work since the paid version of VS is licensed per-user, not per-machine, so ask your boss if you can install it at home and get the same pro tools you use at work.

BUT, did you know (I did not!) that you can download a free time-boxed Windows 10 Development environment for your Mac, Windows, or Linux machine as a virtual machine?

That means, there's a pre-configured VM for VMWare or Hyper-V or VirtualBox or Parallels up at https://developer.microsoft.com/en-us/windows/downloads/virtual-machines/ right now. This has been super useful when I wanted to get a build running fast on a system to test something or get started TODAY.

This evaluation virtual machine includes:

  • Windows 10, version 2004 (10.0.19041.0)
  • Windows 10 SDK, version 2004 (10.0.19041.0)
  • Visual Studio 2019 with the UWP, .NET desktop, and Azure workflows enabled and also includes the Windows Template Studio extension
  • Visual Studio Code
  • Windows Subsystem for Linux enabled with Ubuntu installed
  • Developer mode enabled

These are for eval or quick testing and expire regularly, so check back to get another if you need to. (BTW there are also free VMs for testing IE11 or Edge Legacy but we don't talk about those.)

Free Windows 10 VMs

Again, VS Code is free for Windows, Mac, and Linux, and VS itself is free for Windows and Mac so you may not need these VMs, but knowing there are Windows developer VMs available free for eval is a super useful way to bootstrap development on any machine. Enjoy!


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About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Free eBook: How to use Dapr for .NET Developers

February 16, 2021 Comment on this post [1] Posted in DotNetCore | Open Source
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According to the Dapr open source website:

"Dapr helps developers build event-driven, resilient distributed applications. Whether on-premises, in the cloud, or on an edge device, Dapr helps you tackle the challenges that come with building microservices and keeps your code platform agnostic."

Dapr free eBookI've had Mark Russinovich on my podcast recently to talk about Dapr which is now at version 1.0. Dapr is platform agnostic, and you can use Dapr with your language of choice by leveraging an SDK or making simple HTTP or gRPC calls. Dapr is language agnostic and can run on any hosting environment including local development machines, Kubernetes, and public clouds such as AWS, Azure and GCP. The Dapr sidecar container collects traces so your application is instrumented with no additional code.

Since a lot of folks who read my blog use .NET, I wanted to let you know there's a free eBook on how to use Dapr with .NET available now.
You can download the free eBook "Dapr for .NET Developers" here now! It's available as a PDF and it's being actively improved so can offer feedback to the authors directly via GitHub issue.

Congrats to Rob Vetter, Sander Molenkamp, and Edwin van Wijk and for their hard work on this book!

This free book covers common needs for complex cloud apps and how to make it happen with Dapr and .NET, including:

  • State management
  • Service invocation
  • Pub/sub
  • Bindings
  • Observability
  • Secrets
  • Dapr .NET SDK
  • and more.

Dapr enables developers using any language or framework to easily write microservices. It addresses many of the challenges found that come along with distributed applications, such as:

  • How can distributed services discover each other and communicate synchronously?
  • How can they implement asynchronous messaging?
  • How can they maintain contextual information across a transaction?
  • How can they become resilient to failure?
  • How can they scale to meet fluctuating demand?
  • How are they monitored and observed?

There's also a project at the dotnet-architecture GitHub that includes a complete sample app (go give them a GitHub star, please, for their hard work!) that takes the eShopOnContainers project and instruments it with Dapr!

Dapr Architecture for eShop

eShopOnDapr runs in containers and requires Docker to run. There are various ways to start the application:

Hope you enjoy it! The team would really hard on making it happen.


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About Scott

Scott Hanselman is a former professor, former Chief Architect in finance, now speaker, consultant, father, diabetic, and Microsoft employee. He is a failed stand-up comic, a cornrower, and a book author.

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Disclaimer: The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.