F# Weekly #3, 2026 - F# event / (un)conference in 2026? #fsharp sergeytihon.com/2026/01/24/f...

The BEST Programmers Use Tests For Engineering Like THIS... | @emilybache.com 📽️ AVAILABLE NOW Watch HERE ➡️ youtu.be/IFrmfN1fxLg

Ri mas com desgosto

One thing that always gets me a while to get used to after not working in #fsharp for a while is the ordering For those not aware, F# reads things in order, both in a module, and the file system. So the entry point for a program must be the last file, and in any module, the entry point is last.

Territorial integrity and sovereignty are fundamental principles of international law. They are essential for Europe and for the international community as a whole.

My latest side project, this takes an MSBuild binlog file and transforms it into a Perfetto trace msbuild-binlog-perfview.pages.dev

It's kind of funny that due to AI/LLMs these days another metric to rate #programming languages on has become "token efficiency". On the bright side - some of the beloved languages like #Clojure, #Ruby, #FSharp and #OCaml fared pretty well due to their expressive and compact syntax.

Why didn't I find this great feature of Rider earlier? It makes initialising records so much easier. And with a quick invocation of Fantomas, the record is reformatted to match our settings regarding { } alignment. We prefer the Aligned option. #fsharp #JetBrainsRider

Wir starten mit der .NET Usergroup am 29. Januar um 18:00 ins 2026 mit einem Rückblick aufs 2025: www.meetup.com/net-usergrou... Und es war nicht nur AI los. #dotnet

I'm preparing a list of software development-related events that happened in 2025 for a year-in-review. What happened in 2025 besides AI, LLMs, and agents? What should I include, in your opinion?

As the saying goes, there are only twelve F# developers in the world. Obviously, they must have multiple jobs, according to this list of companies using F#: github.com/fsprojects/f... By the way, if you use F# and your company is not on the list, please take the time to add it. #fsharp

A bold assumption by Copilot. 🤔 The type of a Message comes from C# and does not support deep equality (before you are confused). #fsharp

Have you ever looked at the impressive results that LLMs get on benchmarks and wondered if these results are everything they seem? If you'd like to learn about how data leakage calls the results we see on LLM performance into question, check out my latest blog post. t-redactyl.io/posts/2025-1...

I'm introducing the URS index as a competitor to the TIOBE index. It's also based on non-scientific methods to produce an ordered list of programming language popularity. The results are in for 2025: 1. F# All other languages were categorised as non-popular. #fsharp #Humor

F# Weekly #2, 2026 - Mibo and WREN Stack #fsharp sergeytihon.com/2026/01/10/f...

We've written about #fsharp CEs, Active Patterns and Quotations getting first-class treatment in 'fsnative' - our fork of the fsharp compiler. But units of measure gets its own entry as it's critical to so many of our broader ambitions for the platform. speakez.tech/blog/dimensi...

F#+ 1.9.1 released ✨🥳 #fsharp www.nuget.org/packages/FSh... www.nuget.org/packages/FSh... See the release notes here: github.com/fsprojects/F... Many thanks to everyone that made this release possible! 😘

Currently watching "Why Rust isn't everywhere (yet)". youtu.be/nOSxuaDgl3s?... A great interview. And as an F# developer, I see many parallels. And I will stick with F# - fits our needs better regarding application development. #fsharp #rust

Full Stack Developers seems to be a hot topic again (according to my social media feeds). I don't like the term because what this full-stack depends on heavily is context. 1/3 #Azure #fsharp #csharp #HTML #FullStack #TypeScript

Every decision in software development is a trade-off decision. Should I use TDD or not to develop that piece of code? Relational DB or table storage? FP or OOP? If you think one option is always the best, you either work in a narrow context or you don't know enough about the alternatives.

My daughter‘s (12y) paintings get better and better

C# and F# Interop (2026 edition) How to easily start with F# in your existing C# codebase. www.planetgeek.ch/2026/01/06/c... #dotnet #csharp #fsharp #Interop

New on the blog: Code Cleanliness On the origins of 'clean code' kevlinhenney.medium.com/code-cleanli...

Today‘s pair programmer is a bit silent.

Since I get fewer and fewer opportunities to give conference presentations, I have to get back to writing blog posts to get thoughts out of my head and make room for new ones. Giving presentations and writing blog posts help me find my peace of mind.😌 #dotnet #fsharp #csharp #SoftwareArchitecture

I refer to this a lot and now @henriksen.no posted it on Bluesky so I don’t have to go on x 💕 He is a wise and kind man

The versatility, ease of reading and the language helps you prevent bugs are my most important reasons for liking #fsharp.

My post for #fsadvent2025 #fsharp #adventCalendar #dotnet #powershell comparing F# with PowerShell🎄 thank you @sergeytihon.com > jkone27-3876.medium.com/f-and-powers...

F# Weekly #50, 2025 - Making of A Programming Language #fsharp sergeytihon.com/2025/12/14/f...

«Here I am innocently watching Edward Tufte’s keynote on data visualization and then he absolutely MURDERS economics 💀» youtu.be/rHUDJ8RyseQ

@sergeytihon.com my F# advent calendar contribution: www.planetgeek.ch/2025/12/10/i...

Here’s my post for Day 8: blog.bencope.land/f-in-product... #fsharp

as so often, hobbes nails it … imo, his observation has become even more accurate today …

on type safety

I'm currently refactoring a lot of code in our mixed codebase of #fsharp and #csharp. One thing I appreciate about F# is that because there are only few type annotations, it's much easier to refactor F# code than C# code. Thinks about the code in the picture. #dotnet 1/2

Introducing F# 10 #fsharp devblogs.microsoft.com/dotnet/intro...

simple observation, often hard to implement: if you want to implement change in your organization, you must be willing to sacrifice the heroes of your current organization. (not always but) very often they are the preservers of the status quo because change threatens their hero status.

FSharp.SystemCommandLine v2.0 is released, following System.CommandLine out of beta! #fsharp github.com/JordanMarr/F...

Trying to measure coding productivity is, and always will be, a fool's errand. Why? Because I can go for a walk then take a shower and have an idea, then write a single line of code that fixes everything I was working on. Immense productivity, but by most metrics I didn't do anything at all.

F# 10 makes it possible to use let! .. and! to await two tasks in parallel. This brings back some memories!

F# is great for business applications because it makes getting data from a store asynchronously and in parallel combined with error handling ("hey, there is no data to that ID!") so easy. 1/4

@t-redactyl.bsky.social I watched your NDC keynote (AI is having its moment ... again) and I liked it a lot. I like the storyline, the humour, the information presented, and the style of presentation. Thanks a lot.

Have you had an uneasy feeling about the clear gap between how LLMs perform on benchmarks and their real-life capabilities? If you're curious about the messy truth behind current LLM assessment, catch my @ndcconferences.com AI keynote tomorrow at Rebel, Oslo. ndc-ai.com/agenda/can-y...

Did you notice that the "What's new in F# 10" page is longer than the "What's new in C# 14" page? #justTrolling #dotnet #fsharp #csharp learn.microsoft.com/en-us/dotnet... learn.microsoft.com/en-us/dotnet...

Good abstractions hide the irrelevant and simplify the essential. Bad abstractions hide the essential and complicate the irrelevant.

One thing I like about programming in F# is that sometimes, adding a new feature is more or less adding a single line in a pipeline: #fsharp

A super alternative to postman and http scripts , with a real programming language #fsharp 💚🦔 youtu.be/F508wQu7ET0?...

What happened to Compositional btw ? Also didn’t see many blog posts

When I tell that #pxlclock is hand-made, this means: Man, it's hand-made! I swear - for real ;) You see Sefa in Action - life and in color, soldering the 2 boards for the clock. Thank god I'm a programmer... get your PXL Clock: pxlclock.com

A programmable device for #csharp and #fsharp hobbyists? A beautiful hand-crafted piece of furniture? Or both? Order your #pxlclock now (1st batch limited to 100 units): www.pxlclock.com