Jonas Juselius

CTO at Quantum chemist by training, functional programmer by trade. F# everything. Aspiring rustacean. HPC buff. NixOS everywhere. INF-3910-5.

[The Associated Press @AP]

Paid advertisement from @SpecialIntFilms: The ocean will never look the same again, and that’s why everyone should take a peek. Learn how #OceanboxIO democratizes access to our oceans’ data: https://t.co/050fkRMRth

[Corey Ryan Forrester - WeLoveCorey.com @CoreyRForrester]

Dumb Redneck Explains Tariffs

[Project Liberal @ProjectLiberal]

We corrected the chart.

[Jonas Juselius @copointfree]

@ScottWlaschin Wordle 1,310 X/6

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164 days.

[Jonas Juselius @copointfree]

@rock83 @magnus_sedlacek No problem at all @rock83, please do!

[Jonas Juselius @copointfree]

@almirmesic I’m sure there are much larger F# code bases out here.

[Tomáš Grošup @tomasgrosup]

A long read dedicated to Nullable Reference Types in F# 9 was just published: https://t.co/b3Qx4k2Cbx

It talks about history of nullability in F#, applicability of the new feature as well as new ways of dealing with null values in F# code.

[Dapr @daprdev]

Dapr is now a graduated CNCF project! 🎇

This is a great milestone for the project. Huge thank you to all our community members, contributors, maintainers and end users - The project is here because of you 🙌

https://t.co/CkgbYbh9dI

[Jonas Juselius @copointfree]

@ScottWlaschin @dawedev @edgarfsharp We regularly use a technique I have dubbed Design-By-Murder: An idea or architecture is good enough when nobody can kill it :)

[Jonas Juselius @copointfree]

@ScottWlaschin @dawedev @edgarfsharp @ScottWlaschin I think it could be very fruitful to collaborate on this one. I have many open questions and would like to discuss them with you!

[Jonas Juselius @copointfree]

@dawedev @edgarfsharp @ScottWlaschin 22nd is good for me.

[Jonas Juselius @copointfree]

@agulumans @magnus_sedlacek I’m glad to hear! 🙏

[Jonas Juselius @copointfree]

@edgarfsharp @ScottWlaschin Absolutely, it would be an honor:)

[Magnus Sedlacek @magnus_sedlacek]

Single-Process Microservice Architectures using Dapr Actors and F# by @copointfree

https://t.co/OgrhoePUR1

#funcprogsweden #fsharp

[Jonas Juselius @copointfree]

@ScottWlaschin Thank you :) I had planned to go through the code, but ran out of time. I had to get on the bike and rush to another meeting. I’d be happy and interested in discussing the design, because I have a feeling there is a lot more to it than I have discovered so far.

[Jonas Juselius @copointfree]

@ScottWlaschin It’s brilliant! Not perfect, but brilliant.

[Jonas Juselius @copointfree]

@HardtITSolution Thank you for your kind words ☺️

[Shuren @shurensha]

look. im getting real tired of people suggesting my contacts app doesn't need a full microservices setup. moved from $8 to $48 droplet because APPARENTLY running elasticsearch + mongodb + postgres + redis + kafka with full event sourcing uses "too much memory". anw what do they expect me to do? store phone numbers in a single table? like some kind of amateur??

my diagrams have 16 different services and yes they all need their own database. client keeps asking why saving a contact triggers 47 background jobs but they just don't understand best practices. keep getting OOM kills even with zero users but that's obviously because the health checks from my service mesh are generating too many events (each health ping needs to be stored in 3 databases for consistency). sure the app is currently crashing but that's only because we need more ram. might need to upgrade to the $96 instance to handle the write amplification from storing each crud operation as an immutable event

if anyone has solutions that don't involve removing my service mesh or suggesting sqlite i'm all ears. and no, "simplifying" isn't an option. i didn't spend 6 years studying distributed systems to build some legacy monolith

[Jonas Juselius @copointfree]

@rastreus Using dotnet and F# on NixOS is really straightforward, nothing special at all after you install the dotnet-sdk_8 package. I have largely abandoned Paket in favor of nuget with lockfiles. I often find paket is an extra, unnecessary complexity.