Kirill Osenkov

Announcing Live Geometry: livegeometry.com Try it out especially if you have geometry-aged kids. Built using @avaloniaui.net

Added Link Previews for Live Geometry drawings! livegeometry.com/gallery/ligh...

TIL: the Pizza Theorem livegeometry.com/web/pizza-th...

I'm putting final initializers on the back burner until we see how conditional assignment in initializers plays out. First stab: void branches! github.com/dotnet/cshar...

dragging out a helper, hoisting dependencies along with it

This owl was getting banded and tagged by the Rocky Point Bird Observatory. For the owl’s safety, he/she was wrapped up. These photos…🤣🦉. So cute.

Passenger is a new IDE for C# and .NET, written in C# and Avalonia: passenger-ide.net github.com/Zaneris/pass...

I and I alone control the price of MSFT. If I want it to go up, I sell. If I want it to go down, I hold. No matter what happens on Oct 28 (earnings report) it'll do my bidding.

oh no

30 years after writing Rock Hard Fluffy Thing in 40Kb of ARM assembly on my RISC PC in my bedroom... it's now playable on the web! #gamedev #indiegame mikegoatly.github.io/rhft/

The formula editor now has an industrial grade completion list and syntax highlighting

Tell me who to add to this #ProgrammingLanguages go.bsky.app/KPyf9X8

The new CPU/Memory profiler is out in SharpLsp and it's shit hot. It can profile itself. If you do .NET, C# or F#, this is for you. Believe me, you want to take a look. sharplsp.dev/docs/profiler/

love it!! one could even show a structure preview of large method bodies!

what if the outline view acted bidirectionally as an bulleted outline editor?

And talking about C# frameworks to build games and game engines on, I really like Foster from @noelfb.bsky.social: github.com/FosterFramew... Foster being based on SDL3 and SDL_GPU allow you to target so many platforms.

Colors

Wow, this is pretty neat: hypersweeper.pages.dev Minesweeper on tilings, polyhedra, torus and Moebius strip

Would you like to play with elliptic curves? functionalscript.com/fjs/crypto/s...

First alpha of Clearinet github.com/ericlaw1979/...

Is C# fast enough to write VLC plugins? I raced VLC's Gaussian blur, written in C, against a C# port inside the same VLC. Byte-identical output. Line by line: C wins, C# takes 23% longer. Both tuned to the limit (AVX2, one core): 240 vs 236 fps. martinfinkel.com/blog/gaussi...

⚡ 3x faster .NET restore on GitHub Actions Windows runners, with two environment variables. By default, the NuGet cache sits on the slow C: disk. Move NUGET_PACKAGES and NUGET_HTTP_CACHE_PATH to the faster D: disk, and Windows restore times match Linux: awakecoding.com/posts/speedi...

sheets.works/data-viz/hol...

Marketing said they wanted a promotional video showing the book "in the wild". I'm assuming the Puget Sound shellfish research laboratory's beach counts as "in the wild".

You can now embed Live Geometry drawings into your own websites and blog posts: livegeometry.com/embed

Introducing WinDbg MCP: Debug with natural language, grounded in evidence buff.ly/KlHBZhK #mcp #ai #debugging #windbg #windowsdev #performance #diagnostics

I'm doing an Ask Me Anything live on YouTube to talk about my new book -- Fabulous Adventures in Data Structures and Algorithms -- or, I guess anything else you want to ask about, at the top of the hour 20 minutes from now! www.youtube.com/watch?v=Wrhb...

The Xogot Modeler, the Godot 4.7 support and the Terrain3D support are now live on the AppStore. Details: blog.xogot.com/a-major-xogo...

Last week, we opened the doors to our new office in Tallinn, Estonia! We've always been a proud Estonian company, and we're thrilled to invest in a local team to support our incredible recent growth. Want to join us? We're hiring: avaloniaui.net/careers #Eesti #Tallinn

Iseberg - A cross-platform, PowerShell ISE inspired editor for PowerShell 7 built with @avaloniaui.net github.com/adamdriscoll...

enthusiasm for geometry is at an all time low in these trying times we all need more geometry in our lives

Added some fun new drawings to Live Geometry: livegeometry.com/gallery/magi... livegeometry.com/gallery/trea... livegeometry.com/gallery/fire... livegeometry.com/gallery/gold... livegeometry.com/gallery/kale... livegeometry.com/gallery/circ... To win kids' hearts and minds you gotta have emoji

Mew's build system "Purr" is coming along nicely. It's still an early prototype, but everything finally works the way I envisioned! Naturally, it's written in Mew and included in the stdlib.

This is Snek github.com/Tyrrrz/Snek

Avalonia @avaloniaui.net has been beyond amazing while working on Live Geometry. The same C# app works on Windows, Mac and in the browser:

I built this very janky pen plotter recently, and have been having fun drawing various things with it (mostly contour maps) youtu.be/qyNWDzO6kKQ?...

Aperiodic monotile: livegeometry.com/gallery/aper...

My long-standing dream finally came true! A visualization of a dependency DAG drawing arrows without intersections. Each selected figure depends on a couple of figures before it in the topological sort order. This way you can see the closure of all dependencies for any figure.

My first son (11) has been on a vibe coding tear for the last couple of months. He's been making games on his web page kaicade.com. Play and give me some feedback for him!

category theorists don't want you to know that category theory is dead simple if you are allowed to visualise it in 3d tear down the category cabal now!!!

I published a new article: the hidden trap of fixed buffers in C#. It explains a quirk of fixed buffers that could easily bite you, if you're one of the few people who still have to use that feature. minidump.net/the-hidden-t...

hey, looks really cool! :)