PowerShell Archives - yer.ac | Adventures of a developer, and other things.

Vibing in Kiro to create a self-serve Portainer wrapper.

August 18, 2025 by yer.ac

On a Friday afternoon with half an hour to spare, I tested Kiro, Amazon’s new agentic IDE, against a real-world problem: giving my team a simple way to start and stop Docker services in Portainer. With nothing more than a rough prompt, a PowerShell script, and a few “Trust command” clicks, Kiro spun up a working self-service dashboard in under 30 minutes. It wasn’t production-ready, but it showed how close agent-driven coding can get with minimal input — and why pricing and trust still matter more than the hype

Fixing “hostfxr.dll could not be found” within Windows Docker container (.NET installed from dotnet-install.ps1)

October 6, 2021 by yer.ac

This is here mostly for my own reference for next time I need to fix this, but may be useful to someone else. Installing .NET (5, Core, etc.) via the Microsoft Supplied “dotnet-install.ps1″(https://docs.microsoft.com/en-us/dotnet/core/tools/dotnet-install-script) installs the frameworks fine, but then running .net core code within that windows container would sometimes yield an error like The problem …

Consuming a JSON file for automatic params in PowerShell

June 29, 2021 by yer.ac

More of a note for future me…. Typically in PowerShell when there is a requirement for reading an external file to set parameters, I would read in a file using the Get-Content and converting it to JSON, perhaps something like The problem with this is that if you have a particularly large or complex JSON …

Pragmatically upgrading .net framework version for all projects with PowerShell

June 16, 2021 by yer.ac

We had a situation where we needed to upgrade all the CSPROJ files in a solution to 4.8. The issue is that some of our solutions contain almost a hundred projects so a manual intervention would be prone to error. (plus we have multiple solutions to apply this against!) Whilst there are a number of …

Recursive folder comparison with PowerShell

March 25, 2019 by yer.ac

The Issue This post definitely isn’t “new” or revolutionary, but I was quite surprised to find the Compare-object helper in PS, and I’m bound to forget in the future… As part of some recent roadmap work, we moved over to a new installer technology for some of our tooling. This came with some minor headaches …