Damir Arh
@damirscorner.com
Microsoft MVP. Software architect and polyglot developer. Mobile apps. Development process optimization. Climbing and hiking with my dog in spare time.
Closed class hierarchies in C# 15 improve switch expression exhaustiveness checking www.damirscorner.com/blog/posts/2... #csharp15 #csharp #dotnet
Closed class hierarchies in C# 15
The release of C# 15 is getting closer and its new features started to show up in the .NET 11 previews. That's a good time for me to take a closer look at what to expect. I'm starting with closed clas...
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It took me a while to notice the misconfiguration of my remote NFS repository for restic www.damirscorner.com/blog/posts/2... #backup #synology #restic
Switching restic backup from NFS to SFTP
For over a year, I've been using restic to back up my home lab server to a repository on a Synology NAS mounted locally using NFS. All this time, it worked for me without any issues whatsoever. Only w...
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How I managed to install .NET 11 SDK preview in CachyOS www.damirscorner.com/blog/posts/2... #linux #dotnet
Installing preview .NET SDK in Arch Linux
I'm in the process of switching from Windows 11 to CachyOS on my home machine. Of course, my setup also includes .NET development tooling. And with the upcoming .NET 11 release, I want to have access ...
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It's really easy to manually run a GitHub Actions workflow using GitHub CLI www.damirscorner.com/blog/posts/2... #github
Manually trigger workflow from non-main branch
As a part of migrating my blog to Azure Static Web Apps, I also had to modify my GitHub Actions deployment workflow. Usually, I only want the deployment to get triggered from the main branch but durin...
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All configured custom domains for an Azure Static Web App will be automatically redirected to the default one www.damirscorner.com/blog/posts/2... #azure
Apex domain redirect for Azure Static Web Apps
After reimplementing redirects in Azure Static Web App using managed Azure Functions, there was one last redirect I couldn't implement in this way and had to find another solution for: redirecting all...
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I implemented a set of unit tests in Jest for my Azure Function www.damirscorner.com/blog/posts/2... #unittesting #typescript #azure
Writing tests for HTTP-triggered Azure Functions
As I was implementing redirects in Azure Functions for my blog, I wanted to be able to test them as efficiently as possible. Although you can run and test an Azure function locally, and I did, I also ...
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How I implemented redirects for my blog in Azure Static Web Apps www.damirscorner.com/blog/posts/2... #typescript #azure
Regex based redirects for Static Web Apps
The biggest challenge of moving my blog to Azure Static Web Apps were the redirects. I still support permalinks from my previous blog engine and I previously used back-references in IIS rewrite module...
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The TypeScript template for Azure Functions in Azure Static Web Apps works correctly only for simple cases. www.damirscorner.com/blog/posts/2... #typescript #azure #visualstudiocode #github
JSON files in TypeScript Azure Functions
In the process of moving my blog to Azure Static Web Apps I had to troubleshoot a strange issue: according to logs the managed API Azure Functions have been successfully deployed, but according to Azu...
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I learned that there is a way to provide your own type definitions when importing JSON files in TypeScript www.damirscorner.com/blog/posts/2... #typescript
Importing JSON with custom types in TypeScript
When you want to embed some static data in your TypeScript application, it's very convenient to store it as a JSON file and import it directly in a source code file. The compiler even implies static t...
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How I learned about the PathMap MSBuild property www.damirscorner.com/blog/posts/2... #msbuild #visualstudio #dotnet
A reason VS debugger might not hit breakpoints
There's an open source application plugin written in .NET I occasionally contribute to. As a regular part of my workflow, I sometimes have to attach the debugger to the application with the plugin loa...
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I regularly backup my Bitwarden vault using a PowerShell script www.damirscorner.com/blog/posts/2... #bitwarden #powershell
My Bitwarden backup script
Inspired by a great post in Bitwarden Community Forums and the author's bash script I decided to create my own PowerShell script for backing up the contents of my Bitwarden vault to my existing restic...
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I moved sensitive information for my scripts to a file that's only accessible with elevated privileges www.damirscorner.com/blog/posts/2... #powershell
Secure scripts with secrets in Windows
My restic backup script on Windows relied on having the restic password stored in an environment variable, making it and the restic command accessible to any process running with my credentials. Befor...
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How I fixed failing Teams login for users without a license in their primary organization www.damirscorner.com/blog/posts/2... #teams #azure
Logging into Teams without a license
In the company I work for, we're not using Teams internally and our users don't have a license for it. But some of our customers do use Teams and pay for it. They also add users from our Entra ID whic...
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A simple feature flag to disable all endpoint in Quarkus www.damirscorner.com/blog/posts/2... #quarkus #java
Disable Quarkus endpoints with a request filter
I needed a simple way to disable all endpoints in a Quarkus application based on a configuration property. A request filter was the right tool for the job, but some care had to be taken to not also di...
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I use PowerShell scripts to switch between JDKs in Windows www.damirscorner.com/blog/posts/2... #intellijidea #java
Switching between JDKs in Windows
IntelliJ IDEA does a great at managing multiple different JDK versions and using the right one for each project. However, a different solution is needed for the command line. I tried vfox, but I could...
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How I configured a Git repository on a shared remote directory www.damirscorner.com/blog/posts/2... #git #visualstudiocode
Git repository on a network share
I recently played around with having some version-controlled files on a remote Linux server with SSH access. I still wanted to edit them locally in Visual Studio Code, so the Remote - SSH extension se...
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I use conditional includes to configure my email for all repositories in a folder www.damirscorner.com/blog/posts/2... #git
Per-folder git configuration
My work consists of writing code for multiple clients and for some of them I need to use a different email in my git commits. I recently learned that there is a better approach for handling this than ...
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I added another network interface to a Linux virtual machine I use for hosting Docker containers www.damirscorner.com/blog/posts/2... #linux #proxmox #docker
Adding a second NIC to Proxmox VM
As I'm adding more services to my home lab server, I reached a point at which I want to expose some of them to the internet but keep others available only in the internal network. To securely do so fr...
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Oh My Posh can be configured to automatically change tab titles in Windows Terminal www.damirscorner.com/blog/posts/2... #powershell
PowerShell Tab Title in Windows Terminal
I often have several tabs open in my Windows Terminal. And I like how I can easily identify the right one by its title if it's a tab for WSL or an SSH connection. Fortunately, PowerShell can also auto...
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I wrote about the process of getting my old Xerox printer to work in Linux www.damirscorner.com/blog/posts/2... #xerox #printer #linux
Installing 32-bit Xerox printer in Linux
With Windows 10 support officially ending, I decided to install Linux Mint on one of my older machines which isn't supported by Windows 11. The transition was really smooth for the most part with the ...
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I updated my NuGet package publishing GitHub Actions workflow to use trusted publishing www.damirscorner.com/blog/posts/2... #nuget #dotnet #github
Switching to NuGet trusted publishing
When the support for trusted publishing on NuGet was announced, I decided to try switching to it for my side project as soon as possible. The process ended up being very smooth.
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I created a PowerShell script to simplify adding new network routes www.damirscorner.com/blog/posts/2... #powershell #networking #windows
Selective VPN routing in Windows
I mostly work remotely and to gain access to many work resources, I need a VPN connection to my office. When you connect, all of your network traffic is routed through the VPN connection by default. T...
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Slides and demo from my C# 14 talk at NT konferenca 2025 www.damirscorner.com/sessions/202... #csharp14 #csharp #dotnet #ntk25
What's new in C# 14
Since a new version of .NET is being released every autumn, C# has also adopted the same cadence. So, this November C# 14 is going to be released alongside with .NET 10. In this talk, we will take a l...
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New options for overloading operators in C# 14 www.damirscorner.com/blog/posts/2... #csharp14 #csharp #dotnet
User defined compound operators in C# 14
Operator overloading has been a part of C# since its very first version. The functionality has remained the same until the introduction of generic math in C# 11 when some changes were made to shift op...
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Multiple extension members with the same signature can cause ambiguity when they are all in scope www.damirscorner.com/blog/posts/2... #csharp #dotnet
Disambiguation of extension members in C# 14
In my previous two blog posts, I wrote about extension members in general and generic extension members. But there's one more topic related to extension members I'd like to cover: how ambiguous extens...
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As you would expect, the extension everything in C# 14 works with generics as well www.damirscorner.com/blog/posts/2... #csharp #dotnet
Generic extension members in C# 14
I already wrote about extension members in C# 14 in my previous blog post, but I only covered the non-generic members. Since generics were fully supported in extension methods, they are of course also...
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The long awaited extension everything feature is finally here with C# 14 www.damirscorner.com/blog/posts/2... #csharp #dotnet
Extension members in C# 14
Extension members are the largest new feature of C# 14. We have been hearing about it for quite a while, also under the name of extension everything and extension types. It was expected to be released...
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There's a bug in .NET 8 version of Created() method www.damirscorner.com/blog/posts/2... #aspnetcore #dotnet
Buggy Created response in ASP.NET Core 8
After getting a bug report that an ASP.NET Core Web API endpoint is returning 204 (No content) instead of 201 (Created), it turned out that the bug wasn't in the application code but in .NET.
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The new field keyword in C# 14 can simplify your properties and improve their encapsulation www.damirscorner.com/blog/posts/2... #csharp #dotnet
Field keyword in C# 14
The next C# 14 feature I took a closer look at was the field keyword. Similarly to the null-conditional assignment, it can reduce some of the boilerplate code you need to write. But it's not just synt...
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Pros and cons of null-conditional assignment in C# 14 www.damirscorner.com/blog/posts/2... #csharp #dotnet
Null-conditional assignment in C# 14
As the release of C# 14 is coming closer and most of the features are already available in preview, I decided to try them out myself. I started with null-conditional assignment, a syntactic sugar feat...
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