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Marek Fišera

@mara.neptuo.com
53 followers 61 following 91 posts

Engineer @microsoft.com working on .NET on WebAssembly & Blazor Also github.com/maraf & twitter.com/marekfisera

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Reposted by Marek Fišera
Misha @mkrl.xyz · 31/07/2026
Turns out you can fit an entire snake game into a single <div> with CSS border-shape mkrl.xyz/border-snake/
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Shawn Wildermuth @wildermuth.com · 05/06/2026
Stories I like: How Container Filesystem Works: Building a Docker-like Container From Scratch labs.iximiuz.com/tut...
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Patrik Svensson @patriksvensson.se · 05/06/2026
We've released version 0.56.0 of Spectre.Console. It's probably the last one before that sweet 1.0 release. Probably. spectreconsole.net/blog/2026-06...
spectreconsole.net
Spectre.Console 0.56.0 released!
Still not written in Rust.
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Danny Moerkerke @dannymoerkerke.bsky.social · 03/06/2026
I don’t think HTML-in-canvas is the biggest revolution in HTML right now. I think another feature is. One that will be truly revolutionary and that will have cross-browser support very soon. Details in tomorrow’s edition of Modern Web Weekly. Subscribe link 👇
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nohwnd @jakubjares.com · 01/06/2026
Been thinking about this recently, but failing to articulate it. Nice to see it put together into concrete terms. Is mule a horse? No. But horse-ish is good enough if you need to plow a field. #psconfeu #ai
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Danny Moerkerke @dannymoerkerke.bsky.social · 26/05/2026
Don't wait for iOS support to make your PWA installable. If we can teach users 4 clicks to add a web app to their favorites, we can teach them how to install a web app. Users are not unfamiliar with PWAs because of the lack of iOS support. It's because we don't build enough of them. 🧵 1/2
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Joe Finney @thejoefin.com · 24/05/2026
New app for finding Fluent Icons by drawing! Blog post on how I built this with the WinApp Skill coming soon! #WinDev #Windows #IndieDev #WinUI
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Vincent Baaij @baaijte.net · 20/05/2026
Out now: The Microsoft Fluent UI #Blazor library v5 RC3! Lots of refinements, bug fixes and even 2 new components: Wizard and ColorPicker For the next RCs and final release I'm creating something new that I think a lot of devs will like...a Charts package. Stay tuned!
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Danny Moerkerke @dannymoerkerke.bsky.social · 20/05/2026
Firefox 151 now support the Document Picture-in-Picture API that enables web apps to open an always on top window that can be populated with arbitrary HTML content. Details in the upcoming edition of Modern Web Weekly. Demo and subscribe link 👇 🧵1/3
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Marek Fišera @mara.neptuo.com · 14/05/2026
github.blog/changelog/20...
github.blog
GitHub Copilot app is now available in technical preview - GitHub Changelog
The GitHub Copilot app is now in technical preview. It’s a GitHub-native desktop experience to start agentic development from the work in front of you, keep it isolated, steer it…
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Laurent Kempé 🚀 @laurentkempe.com · 14/05/2026
This is really cool! .NET #dotnet running in Hyperlight!
.NET running in Hyperlight
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Andrew Lock "Sock" @andrewlock.bsky.social · 12/05/2026
Blogged: Running background tasks in Blazor with Web Workers - Exploring the .NET 11 preview - Part 1 andrewlock.net/exploring-th... In this post I discuss the new Web Worker template available in .NET 11 for running CPU intensive tasks without blocking the UI #dotnet #blazor
andrewlock.net
Running background tasks in Blazor with Web Workers: Exploring the .NET 11 preview - Part 1
In this post I discuss the new Web Worker template available in .NET 11 for running CPU intensive tasks without blocking the UI
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Kirill Osenkov @kirillosenkov.com · 28/04/2026
Published a new tool that lets you record all .NET exceptions system-wide in all processes: github.com/KirillOsenko... dotnet tool update -g beetle It records AllExceptions.beetle, which is like a binlog for exceptions. There's also an MCP that can read and analyze .beetle files.
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.NET @dot.net · 28/04/2026
TODAY at 10AM PT on the Blazor Community Standup 〰️ Blazor virtualization gets flexible 〰️ Explore upcoming virtualization improvements in .NET 11 for Blazor, including support for variable‑height items and new APIs for controlling scroll position. 👉 buff.ly/KswnsDo
Spot art.
Photo of presenter(s)
text reads: TODAY at 10AM PT on the Blazor Community Standup
Blazor virtualization gets flexible
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.NET Foundation @dotnetfoundation.org · 28/04/2026
Blazor validation in .NET 11 hubs.li/Q04ct1pw0 #dotnet
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Damian Edwards @damianedwards.com · 19/04/2026
Great article on how many of the efforts in C#, @dot.net, & #aspnetcore over the last few years build on each other to tell a new story: makarchie.com/posts/csharp...
makarchie.com
C# That Looks Like Go: Building a Web API Without a .csproj
A walkthrough of building a real ASP.NET Core web API as a .NET 11 file-based app. No .csproj, no .sln, publishes to a ~30 MB native AOT binary. Includes the EF Core migrations workaround.
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Jeff Fritz @csharpfritz.com · 28/02/2026
Attention Copilot users: Today is the 28th and your request quota resets TONIGHT do yourself a favor: attach a Squad to your favorite project and see what they can do with your leftover requests GitHub.com/bradygaster/squad
github.com
GitHub - bradygaster/squad: Squad: AI agent teams for any project
Squad: AI agent teams for any project. Contribute to bradygaster/squad development by creating an account on GitHub.
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Jeff Fritz @csharpfritz.com · 15/03/2026
I added performance benchmarks to my BlazorWebFormsComponents to show what a performance improvement it is to migrate from WebForms to Blazor Initial reports show a 2x - 4x performance improvement before any tuning.. JUST doing the migration on some simple demo apps More research is coming
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Barry Dorrans @blowdart.me · 24/04/2024
The p in webp stands for “why isn’t this a PNG”
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Stuart Lang @stu.dev · 18/01/2026
My latest side project, this takes an MSBuild binlog file and transforms it into a Perfetto trace msbuild-binlog-perfview.pages.dev
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Marc-André Moreau @awakecoding.com · 02/03/2026
MCP server of the day: mcp-binlog-tool. Rather than manually generate and inspect msbuild binary logs, why not have GitHub Copilot just build and analyze it? Those binlogs contain a *LOT* more information than what you see in the terminal output: github.com/baronfel/mcp...
github.com
GitHub - baronfel/mcp-binlog-tool: A Model Context Protocol server binary that exposes information inside an MSBuild Binary Log to LLMs to aid build analysis.
A Model Context Protocol server binary that exposes information inside an MSBuild Binary Log to LLMs to aid build analysis. - baronfel/mcp-binlog-tool
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Damian Edwards @damianedwards.com · 25/02/2026
Support for multiple files in file-based apps, via the new `#:include` directive. The item type is derived from the file extension in the path/glob you provide & is extensible via MSBuild, so *.cs -> Compile, *.json -> Content, etc. Coming in .NET SDK 10.0.300
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CSS by T. Afif @css-only.dev · 26/02/2026
Firefox is joining the shape() game 🤩 It's a good time for some blobs: css-generators.com/blob/ Or maybe a nice wavy divider: css-generators.com/wavy-divider/ And stay tuned for another generator and more shapes next week! 🤫
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jsakamoto @jsakamoto.bsky.social · 19/02/2026
"FindRazorSourceFile" v.1.1.1 has been released!🎉 Customize the hotkey for Inspection Mode via project-level config! Set your own key combo, hover any element, and jump straight to the .razor source. No more hardcoded Ctrl+Shift+F! github.com/jsakamoto/Fi... #blazor
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Vincent Baaij @baaijte.net · 17/02/2026
Out now: The Microsoft Fluent UI #Blazor library v5 RC1! This is the next major version. Lots of breaking changes but also lots of enhancements, beter APIs, better docs and an MCP server to help you use the library to it's fullest!
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jsakamoto @jsakamoto.bsky.social · 14/02/2026
Ever committed your API key to appsettings.json by mistake? 😅 Blazor Wasm User Secrets Extension solves this! Now you can override app settings locally using .NET User Secrets. No more polluting shared files. Perfect for dev team workflows! ⚡️ github.com/jsakamoto/To... #blazor
github.com
GitHub - jsakamoto/Toolbelt.Blazor.WebAssembly.ExtensibleDevServer.UserSecretsExtension: An extension that enables the use of User Secrets in a Blazor WebAssembly Standalone project hosted using the T...
An extension that enables the use of User Secrets in a Blazor WebAssembly Standalone project hosted using the Toolbelt.Blazor.WebAssembly.ExtensibleDevServer. - jsakamoto/Toolbelt.Blazor.WebAssembl...
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niels9001.bsky.social @niels9001.bsky.social · 29/01/2026
💡 We're exploring a new idea for PowerToys Command Palette: a configurable dock where you can pin your favorite commands and extensions for quick access. For examples and proof-of-concept code, check out the issue - we'd love your feedback 👇 github.com/microsoft/Po...
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Alvin Ashcraft @alvinashcraft.com · 27/01/2026
Introducing OpenSilver 3.3 - Blazor Components Now Run Directly Inside XAML Applications opensilver.net/announcement... #opensilver #xaml #blazor #dotnet #appdev #silverlight #csharp #wpf
opensilver.net
Introducing OpenSilver 3.3: Blazor Components Now Run Directly Inside XAML Applications – OpenSilver
Blazor components now work inside XAML, no bridges or wrappers, and your architecture stays the same. One codebase, every platform. Modernize WPF apps incrementally. OpenSilver 3.3 is free and…
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Michael Washington @adefwebserver.com · 29/01/2026
Stop what you are doing and watch this right now #Blazor #AI #Copiliot - www.youtube.com/live/aKUZCxT...
youtube.com
.NET AI Community Standup - Using the GitHub Copilot CLI and SDK for .NET dev
YouTube video by dotnet
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Vincent Baaij @baaijte.net · 22/01/2026
Coming soon to the Fluent UI #Blazor library... Hierarchical data. Finally, nesting rows will be possible! Oh, and I am now allowed to tag this with #MVPBuzz 😁
Image showing a DataGrid with nested, hierarchical rows
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xCodex @justin-lampe.com · 19/01/2026
Tired of slow .NET setup in GitHub Actions? I built a fast, performant alternative to actions/setup-dotnet with parallel downloads, caching & smart version resolving. github.com/fast-actions... We‘re using this Action @scalar.com and reduced the execution time from 24s to 2s!
github.com
GitHub - fast-actions/setup-dotnet: High-performance GitHub Action for .NET SDK and Runtime installation with parallel downloads, caching, and intelligent version resolution
High-performance GitHub Action for .NET SDK and Runtime installation with parallel downloads, caching, and intelligent version resolution - fast-actions/setup-dotnet
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CSS by T. Afif @css-only.dev · 02/01/2026
Ready for the first cool demo of the year? A mini Mario world with keyboard control. Yes, you can move Mario and also jump! 👀 Demo: codepen.io/t_afif/full/... via @codepen.io ✔️ 100% CSS Magic ✔️ Minimal HTML ❌ 0% JavaScript A Chrome-only experimentation using modern CSS.
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Dare Obasanjo @carnage4life.bsky.social · 27/12/2025
Tech is in an interesting place where some of the most accomplished engineers in the industry now say their job is now just telling AI to write all the code, debug it and fix the bugs. Some of this is marketing hype from people who are selling AI tools (Boris works on Claude Code) but it rings true
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Safia Abdalla @captainsafia.com · 27/12/2025
Another winter break coding side quest... I created a CLI tool called "burrow" for managing local secrets, inspired by `dotnet user-secrets`. But, it’s a standalone executable and it uses SQLite instead of JSON as the backing store. Check it out at safia.rocks/burrow/ 🐰
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Amaury Levé @evangelink.bsky.social · 19/12/2025
🚀 This week I improved MTP (Microsoft.Testing.Platform) to support WASM, browser, WASI 🌐 and made progress on Android 🤖📱 & iOS 🍎📱. Modern apps deserve modern testing, MTP makes it simple, fast, and future-ready! #dotnet #testing #MTP
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Daniel Roth @danroth27.bsky.social · 17/12/2025
Infragistics just made 50+ Ignite UI components available for free and open-source! Support for Angular, React, Web Components, and Blazor: www.infragistics.com/blogs/open-s... #blazor #dotnet #IgniteUI
infragistics.com
Ignite UI Releases 50+ Powerful Open-Source Components
We are empowering the open-source community by offering a set of 50+ open-source components across Angular, React, Blazor, and Web Components. Explore all.
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Damian Edwards @damianedwards.com · 19/12/2025
New reference article detailing lots of info about running C# file-based apps via `dotnet run` now available! Makes for great input to a coding agent when working on file-based apps. learn.microsoft.com/dotnet/core/...
learn.microsoft.com
File-based apps - .NET
Learn how to create, build, and run C# applications from a single file without a project file.
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Vincent Baaij @baaijte.net · 27/11/2025
Out now: The Microsoft Fluent UI #Blazor library v4.13.2! Maintenance release with .NET 10 support, Templates fixes, and about a dozen other PRs Details at fluentui-blazor.net/WhatsNew. Packages are on NuGet. Now back to getting a v5 RC out of the door...
fluentui-blazor.net
Fluent UI Blazor Documentation & Demo site
Microsoft Fluent UI Blazor library. For use with ASP.NET Core Blazor applications
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nohwnd @jakubjares.com · 28/11/2025
Let me invite you to our last #dotnet Meetup this year. We have 3 great talks prepared for you, and of course food. 📍 Microsoft Office (Delta Building, Vyskočilova 1561/4a, Prague 4) 📅 Monday, December 8, 2025 🕗 5.30pm - 9.00pm English, Free entry www.meetup.com/microsoft-ev...
meetup.com
Talk .NET with .NET Team: December Edition, Mon, Dec 8, 2025, 5:30 PM | Meetup
We’re wrapping up the year with a supercharged **December edition** of **Talk .NET with .NET Team meetup series**! 🚀🎄 Get ready for an evening full of performance insight
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jsakamoto @jsakamoto.bsky.social · 26/11/2025
🚀 After validating on the .NET 10 SDK, the first stable release of "Find Razor Source File" is live! github.com/jsakamoto/Fi... #blazor Streamline your Blazor development: jump straight from any clicked element in your browser to the exact `.razor` file in Visual Studio or VS Code!
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Damian Edwards @damianedwards.com · 22/11/2025
Got nerd-sniped on a saturday morning github.com/DamianEdward...
github.com
GitHub - DamianEdwards/RazorTemplates: Experiment creating templating extensions for Razor Copmonents
Experiment creating templating extensions for Razor Copmonents - DamianEdwards/RazorTemplates
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Shaun Walker @sbwalker.bsky.social · 17/11/2025
Announcing Oqtane 10.0.0 for .NET 10! This is a major release including Passkey support, improvements to the Oqtane Application Template, etc... 77 pull requests by 6 contributors. www.oqtane.org/blog/!/132/a... #blazor #oqtane
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Kirill Osenkov @kirillosenkov.com · 15/11/2025
One thing I started noticing recently is that competent engineers give up their credibility due to AI. Twice already highly competent engineers I respect sent a PR that turned out to have very subtle issues. These issues would not be possible if a human understood it.
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Danny Moerkerke @dannymoerkerke.bsky.social · 12/11/2025
Here's an overview of what your web app can do today youtu.be/9ZC7tYgBbUE?...
youtu.be
Danny Moerkerke - The State Of PWAs
YouTube video by Frontendisti
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jsakamoto @jsakamoto.bsky.social · 10/11/2025
New blog post: "How to Quickly Test Your Blazor App on a Real Smartphone" dev.to/j_sakamoto/h... #blazor
dev.to
How to Quickly Test Your Blazor App on a Real Smartphone
Using Dev Tunnels to Access Your Development App from Your Phone via the...
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Chet Husk @chethusk.bsky.social · 08/11/2025
Hey #dotnet, would you like it if #msbuild (and dotnet build, etc) natively integrated with your CI/CD pipelines for integrated warning/error reporting and such? I've vibe-coded some stuff here that might be interesting to folks: github.com/dotnet/msbui...
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Kelsey Hightower @kelseyhightower.com · 06/11/2025
Kubernetes is the sum of all the shell scripts, and practices, system administrators have cobbled together over time, presented as a single system behind a declarative set of APIs.
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Marek Fišera @mara.neptuo.com · 05/11/2025
devblogs.microsoft.com/dotnet/copil...
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Thomas Fuchs 🫯 @thomasfuchs.at · 31/10/2025
Meme showing six logical operators illustrated with jack-o'-lantern images. 

trick OR treat 
trick AND treat 
trick XOR treat 
trick NOR treat 
trick NAND treat 
trick XNOR treat
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Jess Calarco @jessicacalarco.com · 01/11/2025
We have progressed from data collection to data analysis.
My 11-year-old sitting with her pile of Halloween candy, sorting it into a bar graph
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