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Tomasz Cielecki

@ostebaronen.dk
551 followers 262 following 340 posts

Loves #dotnet, #mobile, #gaming, #photography and #cheese Blog: blog.ostebaronen.dk Mastodon: fosstodon.org/@Cheesebaron

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Tomasz Cielecki @ostebaronen.dk · 26/08/2026
Few shots from this evening
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Tomasz Cielecki @ostebaronen.dk · 14/08/2026
Wrote a bit about my experience setting this up in Azure DevOps and GitHub Actions. Overall pretty smooth with a small gotcha. Have a read here: blog.ostebaronen.dk/2026/08/mtp-... #dotnet #devops #testing
blog.ostebaronen.dk
Microsoft Testing Platform GitHub and Azure DevOps Reporting
I’ve previously written about how cool Microsoft Testing Platform is, which is a set of libraries that a lot of Unit Test frameworks such as xUnit, TUnit, MSTest and more build on. To standardize how ...
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ErikEJ @erikej.bsky.social · 12/08/2026
.NET 11 Preview 7 is now available!
ift.tt
.NET 11 Preview 7 is now available! - .NET Blog
Find out about the new features in .NET 11 Preview 7 across libraries, runtime, SDK, C#, ASP.NET Core, .NET MAUI, Entity Framework Core, F#, and Windows Forms.
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Tomasz Cielecki @ostebaronen.dk · 26/07/2026
This trailer slaps.
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Rob DenBleyker @robdenbleyker.com · 18/07/2026
based on the trailer alone I don't think Chris Nolan even played Mario Odyssey
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Tomasz Cielecki @ostebaronen.dk · 15/07/2026
Whoa! Another year as a Microsoft MVP. Honored to continue to be part of this community! #mvpbuzz #dotnet
Screenshot of email with the writing:

MVP Communities

You've been accepted to the Microsoft MVP Program!

Tomasz Cielecki,

We are pleased to invite you to the Microsoft Most Valuable Professionals (MVP) program in recognition of your outstanding contributions to the community in the following technical area(s):

- .NET
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Digital Brain @yourdigitalbrain.bsky.social · 02/07/2026
It is called Android Developer Verifier (ADV), and the free software community refers to it by its technical name: malware.
sinapti.ca
Google installed a root-privileged process on 4 billion Android devices, with no option to remove it: F-Droid calls it malware - Sinaptica
The "verifier" on Android that the community calls malware If you have an Android device 8 or higher, Google has already installed a system process with adminis
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Tomasz Cielecki @ostebaronen.dk · 25/06/2026
You should try them if you haven't. So much fun to be had!
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Tomasz Cielecki @ostebaronen.dk · 14/06/2026
What a performance for Toyota at #lemans24 #wec! P1 and P3 after starting at the back.
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Tomasz Cielecki @ostebaronen.dk · 14/06/2026
Wow, De Vries! #wec #lemans24
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Tomasz Cielecki @ostebaronen.dk · 14/06/2026
Hartleyyyyyy #wec #lemans24
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Alpha Beta Gamer @alphabetagamer.bsky.social · 10/06/2026
This is Flip-Flop Fury, a physics-based projectile steering indie game where you hurl footwear at despicable targets! Coming to Steam: store.steampowered.com/app/3608830/... by indie dev @shapeshifterdgt.bsky.social
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Tomasz Cielecki @ostebaronen.dk · 02/06/2026
@vscode.dev is there a way to select "auto" model in the agents window. I don't seem to see that option? Also. There is only agent mode? If I need to plan I have to write `/plan` is this normal?
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Tomasz Cielecki @ostebaronen.dk · 25/05/2026
A quick shot from today's bike ride.
Wide view of a field full rapeseed under a blue sky
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.NET @dot.net · 21/05/2026
🚀 .NET 11 Preview 4 is HERE! ⚙️ runtime‑async JIT 🧵 zero‑alloc async paths 🧩 span‑based compression APIs 📡 OpenTelemetry for CLI 🐚 Fish shell completions 🧠 EF Core vector search 📱 MAUI dotnet watch on mobile Read the blog → ift.tt/iXNJ9Rf
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Andrew Lock "Sock" @andrewlock.bsky.social · 19/05/2026
Blogged: .NET finally gets union types🎉 - Exploring the .NET 11 preview - Part 2 andrewlock.net/exploring-th... In this post I discuss the support for union types released in .NET 11, how they're implemented, the choices made, and how to create your own union types #dotnet
andrewlock.net
.NET finally gets union types🎉: Exploring the .NET 11 preview - Part 2
In this post I discuss the support for union types released in .NET 11, how they're implemented, the choices made, and how to create your own
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derek van vliet @derek.bike · 16/05/2026
logging on
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Tomasz Cielecki @ostebaronen.dk · 16/05/2026
The first couple of hours of the Nürburgring 24h race has been super intense! #nls #n24h
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Gerald Versluis @jfversluis.dev · 12/05/2026
PSA: .NET MAUI 9 goes out of support today. MAUI does NOT follow .NET LTS/STS lifecycle. Each version gets 6 months after the next ships. MAUI 8 is already unsupported. youtu.be/w3jD-UpxRF4
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Rev. Poppy Haze 𓅋 @poppyhaze.bsky.social · 07/05/2026
found this guy on Tiktok who has discovered carpenter's speed squares make an insanely satisfying noise when you bounce them off tires or wood, called @lostcoastedc on there
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Brian Krijgsman @briankrijgsman.bsky.social · 04/05/2026
🔊 RENAULT F1 V8 ENGINE TEST 🔊
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Tomasz Cielecki @ostebaronen.dk · 30/04/2026
Given that Spotify has always had issues mixing up artists using the same name, I won't have much faith in this verified badge
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Liam @ GamingOnLinux @gamingonlinux.com · 27/04/2026
CachyOS April 2026 release brings a new package manager and even more optimizations #CachyOS #Linux #OpenSource #LinuxGaming
gamingonlinux.com
CachyOS April 2026 release brings a new package manager and even more optimizations
CachyOS remains as one of the most popular Linux distributions for gaming, and a fresh download has arrived with the CachyOS April 2026 release.
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Tomasz Cielecki @ostebaronen.dk · 27/04/2026
What hardware are you guys running on when running local #llm? My MacBook with M1 Pro and 32 GB of RAM is really struggling with smaller models such as Gemma 4 E4B.
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Shiny .NET @shinylib.net · 27/03/2026
We have lunched Shiny Mobile v4 - Lots of bugfixes for Bluetooth LE, BLE Hosting, GPS, HTTP Transfers & more - we also offer Windows support on many of our popular libraries now. Come check it out at shinylib.net/client/relea... #dotnetmaui #dotnet
shinylib.net
Client Releases
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Tomasz Cielecki @ostebaronen.dk · 17/03/2026
Blogged a bit about how I typically set up logging in my #dotnet Android and iOS Apps using Microsoft.Extensions.Logging, Serilog and @sentry.io blog.ostebaronen.dk/2026/03/logg...
blog.ostebaronen.dk
Logging in .NET MAUI Apps
A topic I have seen come up again multiple times and multiple answers for is how to add logging to your App. People do it slightly differently, but in the end logs end up in files and logging systems.
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Tomasz Cielecki @ostebaronen.dk · 15/03/2026
Migrated to @eurosky.social. Very smooth migration process. Super clear instructions, very well done.
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Alvin Ashcraft @alvinashcraft.com · 06/03/2026
ReSharper for Visual Studio Code, Cursor, and Compatible Editors Is Out buff.ly/jagI4qv #dotnet #resharper #vscode #cursor #programming #refactoring #codingstandards
buff.ly
ReSharper for Visual Studio Code, Cursor, and Compatible Editors Is Out | The .NET Tools Blog
ReSharper has been a trusted productivity tool for C# developers in Visual Studio for over 20 years. Today, we’re taking the next step and officially releasing the ReSharper extension for Visual Studi
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Michael Stonis @stonis.bsky.social · 06/03/2026
KumikoUI - A Free, Open-Source DataGrid for MAUI Introducing KumikoUI, a fully canvas-drawn, open-source DataGrid for .NET MAUI built on SkiaSharp with support for sorting, filtering, grouping, editing, and much more ston.is/blog/maui/kumiko-ui
ston.is
KumikoUI - A Free, Open-Source DataGrid for MAUI
Introducing KumikoUI, a fully canvas-drawn, open-source DataGrid for .NET MAUI built on SkiaSharp with support for sorting, filtering, grouping, editing, and much more
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Tomasz Cielecki @ostebaronen.dk · 06/03/2026
Blogged a bit about using #GitHub Apps for authentication in #GitHubActions workflows: blog.ostebaronen.dk/2026/03/auth... I recently had to do this to have a scheduled action be able to create pull requests on a repo, but also have checks running on said PR. You can't do that with a regular token.
blog.ostebaronen.dk
Authenticating git and gh-cli using GitHub Apps in GitHub Actions
In a previous post I wrote a bit about how I authenticated the Renovate Bot using a GitHub App, to allow it to gain access to private packages in GitHub Packages. This approach is also useful in gener...
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Tomasz Cielecki @ostebaronen.dk · 06/03/2026
I've been using @cakebuild.net for a long time, it is really great!To be able to write C# to make up all your build tasks and everything around it, test it locally and just minimally bootstrap Cake in your yml file for your CI workflow. Thanks to @devlead.se and the Cake team for their dedication!
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beetle moses @beetlemoses.bsky.social · 03/03/2026
My debut book of comics is officially LIVE for PREORDER!
Cover art for “Beetle Moses: a Comics Menagerie”, the debut comic collection from beetle moses.
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Tomasz Cielecki @ostebaronen.dk · 19/01/2026
Just finished reading Rhythm of War. Another great book by Brandon Sanderson. I think I will take a short break from the Cosmere and try a bit of Dungeon Crawler Carl.
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Chris Meder @evcurvefuturist.com · 29/12/2025
Denmark just hit 90.9% BEV in Nov — +33–36pp YoY vs Nov ’24. Trailing-12-months climbed to 84.2% BEV, up ~28–30pp YoY. That makes Denmark the second country to reach this milestone. This isn’t gradual adoption — it’s a late-stage S-curve snap. ICE isn’t declining anymore; it’s exiting. #RipICE #EV
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Tomasz Cielecki @ostebaronen.dk · 29/12/2025
Switching to Linux. Was struggling a bit setting up Steam with an external mount point. Turns out Steam needs exec mount option.
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Simon Willison @simonwillison.net · 28/12/2025
Today in very niche projects: I built a page showing the latest versions of all of the official GitHub Actions (actions/setup-python@v6 etc) so I can point Claude Code and friends at it when they're writing workflows for me simonwillison.net/2025/Dec/28/...
simonwillison.net
simonw/actions-latest
Today in extremely niche projects, I got fed up of Claude Code creating GitHub Actions workflows for me that used stale actions: actions/setup-python@v4 when the latest is actions/setup-python@v6 for ...
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Waterfox @waterfox.com · 16/12/2025
Some thoughts on Mozilla's trajectory and Waterfox's stance on AI in the browser 👇 www.waterfox.com/blog/no-ai-h...
waterfox.com
No AI* Here - A Response to Mozilla's Next Chapter - Waterfox Blog
Mozilla's pivot to AI-first browsing raises fundamental questions about what a browser should be. While ML tools like local translation offer real utility, LLMs are opaque black boxes. Waterfox won't ...
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PolkPanther @polkpanther.bsky.social · 30/11/2025
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Ky @ky.fyi · 23/11/2025
so much happens
A black t-shirt that says “I don't want to be in the loop or out of the loop. I want to be aware of the loop & its contents but free from any loop-related responsibilities”
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Tomasz Cielecki @ostebaronen.dk · 18/11/2025
Yay. Managed to upgrade an App to .NET 10. Most of the changes were adressing trimming warnings, which was expected. Apart from that it was just changing a 9 to 10. #dotnet #maui
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Tomasz Cielecki @ostebaronen.dk · 14/11/2025
Gotta love Azure DevOps Pipelines. They have Xcode 26.1 RC installed, but are missing simulator runtimes. So when building a .NET 10 iOS App with latest workloads it explodes building and you are forced to explicitly use net10.0-ios26.0 TFM and Xcode 26.0 #dotnet
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Tomasz Cielecki @ostebaronen.dk · 13/11/2025
Just released version 5.0.0 of ImageCaching.Nuke for .NET iOS! This time we added .NET 10 support and switched from Carthage and including huge xcframework files to Swift Package Manager. This means the resulting NuGet package went from a whopping 30 MB to now only 3.5 MB. github.com/roubachof/Nu...
github.com
Release 5.0.0 · roubachof/NukeProxy
What's Changed Remove .NET 8 support by @Cheesebaron in #28 Update to .NET 10 and switch to Swift Package Manager by @Cheesebaron in #32 With this release it also shaved the NuGet package from be...
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Tomasz Cielecki @ostebaronen.dk · 12/11/2025
What a day today. I've been writing C#, swift and python on the same day. Working on stuff connecting to BLE and WiFi.
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Cake Build @cakebuild.net · 11/11/2025
Just released Cake v6.0.0! 🚀🍰 Few highlights ✨ .NET 10 & C# 14 support! ✨ Introducing Cake.Sdk - a new official runner that brings the .NET 10 "dotnet run app.cs" experience to Cake. ✨ Bug fixes, improvements. Full details: cakebuild.net/blog/2025/11... #dotnet #csharp #devops
cakebuild.net
Cake - Cake v6.0.0 released
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Cake Build @cakebuild.net · 11/11/2025
We are starting to prepare our next release, 6.0.0 ( github.com/cake-build/c... ). This is your friendly reminder that if you haven't pinned to a specific version of Cake, you should do it now :-) 📌 🍰 cakebuild.net/docs/writing...
github.com
cake-build/cake
:cake: Cake (C# Make) is a cross platform build automation system. - cake-build/cake
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Tomasz Cielecki @ostebaronen.dk · 11/11/2025
Just released MvvmCross 10.0.0! Read the release notes here: github.com/MvvmCross/Mv... Main changes are .NET 10 support and a lot of effort spent on adding trimming attributes in the code base. Packages are indexing on NuGet and available soon! #dotnet #maui #dotnetconf
github.com
Release 10.0.0 · MvvmCross/MvvmCross
What's Changed .NET 10 SDK was just released and it is an opportune moment to also release a new version of MvvmCross. The highlights in this release are: .NET 10 Support Dropped .NET 8 Support fo...
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Tomasz Cielecki @ostebaronen.dk · 11/11/2025
@cakebuild.net running into issues with the Cake.Tool on .NET 10, where it thinks it needs to fall back to netstandard2.0 when restoring add-ins. Is this something that will be fixed when this PR gets released? github.com/cake-build/c...
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beetle moses @beetlemoses.bsky.social · 28/10/2025
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xUnit.net @xunit.net · 02/11/2025
We just shipped Core Framework v3 3.2.0 and Analyzers 1.25.0. This includes optional support for Microsoft Testing Platform v2. Check the release notes for more information. xunit.net/releases/v3/... xunit.net/releases/ana... #DotNet #CSharp #FSharp #UnitTest #TDD
xunit.net
Release Notes | xUnit.net
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Tomasz Cielecki @ostebaronen.dk · 31/10/2025
If you haven't played these, then you are missing out on a lot of fun. Color blindness mode, built straight into the games, so everyone can play!
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