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Don Syme

@dsyme.bsky.social
1.3K followers 172 following 562 posts

GitHub Next. Visiting Professor Kings College London. dsyme.net linktr.ee/dsyme

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Indivisible ❌👑 @indivisible.org · 23/08/2026
We want to train at least 100,000 volunteers how to defeat Trump's next coup attempt before, during, and after the midterms. We’re building the nationwide infrastructure to respond to attacks on voting rights anywhere — and it’s all powered by your donations of $5 or $10. Please chip in if you can!
secure.actblue.com
Chip in to help fund Indivisible's Election Protection Program
Show your support with a contribution.
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Don Syme @dsyme.bsky.social · 23/08/2026
Winston notes, 'He is too intelligent. He sees too clearly and speaks too plainly.' Winston predicts, correctly, that Syme will become an unperson. 🤔🤔🤔
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Graham Davis @agendaforreform.bsky.social · 27/07/2026
Got mine, get yours!
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Don Syme @dsyme.bsky.social · 26/07/2026
At WOMAD for the day. Gotta say the Byline Times people are doing an amazing job of bringing thoughtful, informed, free thinking, engaging political/cultural dialogue to this event. Their tent overflowing, more at each session. Real, nuanced, non-escapist, challenging. @bylinetimes.bsky.social
bylinetimes.bsky.social
Byline Times (@bylinetimes.bsky.social)
A reader-funded newspaper that truly sits outside the established system and answers only to the public. Subscribe for exclusive content in the Byline Times monthly print edition: subscribe.bylinetim...
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Don Syme @dsyme.bsky.social · 10/05/2026
👀 👀 👀
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Farrukh @implausibleblog.bsky.social · 10/05/2026
Mark Carney, "Those whose politics is to destroy, to demolish, dismantle, they're not going to change their instincts" "This is, in many respects, this is their moment" "We can't answer them by pining for an old order that's not going to return "
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Dag Brattli @dbrattli.bsky.social · 19/04/2026
If you maintain open source projects, these two tools have been game-changers for me recently: - EasyBuild.ShipIt by @mangelmaxime.bsky.social - Repo Assist by @dsyme.bsky.social - github.com/easybuild-or... - github.com/githubnext/a... #fsharp #csharp #dotnet
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Don Syme @dsyme.bsky.social · 09/04/2026
I'm enjoying reading the book "Protestants" by Alec Ryrie, an historical look at Protestants from Reformation to today. It's strong on recurring historical patterns of religious/political thought, and wil be useful for those wanting to get inside the shape shifting nature of Protestantism.
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Don Syme @dsyme.bsky.social · 09/04/2026
I don't get why Christians are so keen on oil & gas. It seems like solar and wind are the most beautifully Christian-aligned forms of energy production possible - abundant, God-given and aligned with Christian imagery of light and air. Oil & gas are hellish in comparison. What am I missing?
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Don Syme @dsyme.bsky.social · 06/04/2026
I spent some time looking at "Truth" Social today. Mainly out of curiosity. Every single post is propaganda, a lie. All posts are AI generated imagery. Not a single authentic interaction or discussion, besides the vast accounts all new accounts are auto-subscribed to.
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Sergey Tihon 🦔🦀 @sergeytihon.com · 05/04/2026
F# Weekly #14, 2026 - Serde.FS Brings Compile-Time RPC to F# #fsharp sergeytihon.com/2026/04/05/f...
sergeytihon.com
F# Weekly #14, 2026 – Serde.FS Brings Compile-Time RPC to F#
Welcome to F# Weekly, A roundup of F# content from this past week: News Serde.FS alpha.9 — Compile-time RPC for F# with no reflection, no controllers Florian Verdonck: Fantomas — exploring new appr…
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Bylines Network @bylinesnetwork.co.uk · 31/03/2026
We’re proudly independent – no corporate owners or billionaire backers. But it costs us at least £150k a year to run our network. Become a Friend of Bylines Network. For as little as £3.50 a month, you’ll get behind-the-scenes insights, access to special events, merchandise, and more.
bylinesnetwork.co.uk
Friends of Bylines Network - Bylines Network
Stand with us – sign up. now to become a Friend of Bylines Network
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Jordan Marr @jordanmarr.bsky.social · 23/03/2026
🚀 Serde.FS alpha.9 — Deterministic RPC for F# No reflection. No controllers. Just compile‑time RPC clients + routing. Includes: • [<RpcApi>] • ASP.NET RPC server • Deterministic JSON backend • Shared → Server → Client example github.com/serde-fs/Ser... #fsharp #rpc #aot #serde #dotnet
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Sergey Tihon 🦔🦀 @sergeytihon.com · 22/03/2026
First Repo Assisted release of SwaggerProvider is out #fsharp github.com/fsprojects/S... 🎉🤖
github.com
Release v3.1.0 - Repo Assisted · fsprojects/SwaggerProvider
feat: Add IgnoreParseErrors parameter to OpenApiClientProvider (#300) feat: Add SchemaReaderErrors property to OpenApiClientProvider (fixes #160) (#327) fix: include response body in OpenApiExcepti...
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Bjørn Einar Bjartnes @bjartnes.bsky.social · 20/03/2026
- Hello Joe - Hello @dbrattli.bsky.social Come check out Dag presenting actors on F# and OTP at NRK! #fsharp www.linkedin.com/posts/bjartn...
linkedin.com
F# Meetup (Recorded at NRK edition), Wed, Mar 25, 2026, 5:30 PM | Meetup | Bjørn Einar Bjartnes
- Hello Joe - Hello Dag Brattli Come check out actors running on F# and OTP and more 25th of March with OsloFSharp at Norsk rikskringkasting (NRK) #fsharp https://lnkd.in/enf64g4h
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Dag Brattli @dbrattli.bsky.social · 20/03/2026
Next week I will present the new work on Fable Beam at Oslo F# Meetup 💫 #fsharp #fablecompiler
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Indivisible ❌👑 @indivisible.org · 14/03/2026
The weeks right before and after No Kings Day are when we need your support the most. We’re counting on grassroots donors to help fund all the tools and resources that make our nationwide mobilizations huge, peaceful, and inspiring demonstrations of defiance. Please pitch in if you can.
secure.actblue.com
I just gave to Indivisible!
Show your support with a contribution.
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Don Syme @dsyme.bsky.social · 14/03/2026
FSharp.Control.TaskSeq v1.0.0 is now released. fsprojects.github.io/FSharp.Contr... A huge thank you to Abel Braaksma, Ruben Bartelink and others for the work on this library. It's been at v0.4.0 for a while and the functionality has now been rounded out, bugs cleared and docs published.
fsprojects.github.io
FSharp.Control.TaskSeq
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Don Syme @dsyme.bsky.social · 08/03/2026
My morning --> * A performance improvement * A feature request analysis * An engineering improvement Daily improvements to the software you maintain, delivered to your repos with GitHub Agentic Workflows. dsyme.net/2026/03/08/s...
dsyme.net
Start Your Day With Code That’s Better 🌤️
I have been using GitHub Agentic Workflows to help automate the maintenance of software libraries and tools. The workflow I’m using is called Repo Assist. Here’s my morning today! ⚡ A p…
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Maxime @mangelmaxime.bsky.social · 03/03/2026
The wait is over! Fable 5 Release Candidate is officially here. After a year of hard work from the community, we're bringing you: ✨ .NET 10 & F# 10 support 🐍 A massive Python update (now powered by a Rust core & PyPI!) 🌐 Cleaner JS/TS Pojo bindings fable.io/blog/2026/20... #fsharp #fablecompiler
fable.io
Fable · Announcing Fable 5 Release Candidate
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Don Syme @dsyme.bsky.social · 27/02/2026
F# folk, with @nojaf.com we've added support for generating llms.txt to the fsdocs tool that's widely used by the F# community. We'll release it soon but if you have a chance to take it for a spin before please do. github.com/fsprojects/F... #fsharp
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Don Syme @dsyme.bsky.social · 27/02/2026
F# folk, am working with @nojaf.com on a request from Nick Herchey to add support to fsdocs for "fsdocs convert" to easily convert between the nice literate programming formats F# supports - .fsx, .md, .ipynb, .tex Please take it for a spin and give feedback github.com/fsprojects/F...
github.com
[Repo Assist] Add `dotnet fsdocs convert` command for single-file conversion by github-actions[bot] · Pull Request #1019 · fsprojects/FSharp.Formatting
🤖 This PR was created by Repo Assist, an automated AI assistant. Closes #811 Summary This adds a new convert verb to the fsdocs CLI tool, enabling conversion of a single .md, .fsx, or .ipynb file t...
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Don Syme @dsyme.bsky.social · 25/02/2026
F# community: "Suggestion: Add yaml type provider to F# data family?" (that's all they write) Me: "/repo-assist Implement a YamlProvider" Result within an hour: New type provider with testing, CI passing github.com/fsprojects/F... #fsharp
github.com
Suggestion: Add yaml type provider to F# data family? · Issue #1645 · fsprojects/FSharp.Data
Probably needs few revisions for modern dotnet and dependant packages? https://fsprojects.github.io/FSharp.Configuration/YamlConfigProvider.html
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Don Syme @dsyme.bsky.social · 25/02/2026
My latest blog post is out! 🌈 Repo Assist: A Repository Assistant Repo Assist is an experimental automated assistant for software maintainers. For some repos, not all. It is a GitHub Agentic Workflow and uses Copilot, Claude or Gemini in automated, proactive mode. dsyme.net/2026/02/25/r...
dsyme.net
🌈Repo Assist: A Repository Assistant
I have spent the weekend creating and using a preliminary version of what I call Repo Assist, which is an automated repository assistant for software maintainers. For some repos, some of the time. …
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Don Syme @dsyme.bsky.social · 24/02/2026
Turns out the AI models are really very good at writing F# type providers. Here adding an option to add .WithAbc(...) functional update methods to the provided object models for FSharp.Data.
github.com
[Repo Assist] Add With* methods to CsvProvider Row and JsonProvider record types (closes #1431) by github-actions[bot] · Pull Request #1639 · fsprojects/FSharp.Data
🤖 This is a pull request created by Repo Assist, an automated AI assistant. Closes #1431 Summary This PR implements With(PropName)(newValue) methods on generated types for CsvProvider and JsonProvi...
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Don Syme @dsyme.bsky.social · 22/02/2026
Using GitHub Agentic Workflows "Repo Assist" automated repo assistant, I was able to 1. Clear all the lingering technical debt off the community library FSharp.Control.AsyncSeq today 2. Release a new version 4.0.0 with a major compat feature github.com/fsprojects/F... bsky.app/profile/did:...
github.com
GitHub - fsprojects/FSharp.Control.AsyncSeq: Asynchronous sequences for F#
Asynchronous sequences for F#. Contribute to fsprojects/FSharp.Control.AsyncSeq development by creating an account on GitHub.
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Don Syme @dsyme.bsky.social · 22/02/2026
F# folk - I'm having some success using GitHub Agentic Workflows to automate some backlog maintenance work in some older F# community repos. FSharp.Data: github.com/fsprojects/F... FSharp.Control.AsyncSeq: github.com/fsprojects/F... It's helping me re-engage with the repos and clean things up.
github.com
[Repo Assist] Monthly Activity 2026-02 · Issue #1599 · fsprojects/FSharp.Data
🤖 Repo Assist here — I'm an automated AI assistant for this repository. Activity for February 2026 2026-02-21 💬 Commented on #1532: Explained HTTP socket exhaustion root cause (WebRequest port pool...
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amplifyingfsharp.io @amplifyingfsharp.io · 17/02/2026
This week on Friday @dsyme.bsky.social shows us how agentic workflows can continuously improve #fsharp libraries. amplifyingfsharp.io/sessions/202...
amplifyingfsharp.io
Boosting F# Libraries with Automated Agentic AI | Amplifying F#
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GitHub Next @githubnext.com · 13/02/2026
We're super jazzed to be launching GitHub Agentic Workflows into technical preview today! "Generative AI" kind of fooled us into thinking that AI is synchronous, but async AI can have so much more value for us as developers. 🧵 github.blog/ai-and-ml/au...
github.blog
Automate repository tasks with GitHub Agentic Workflows
Build automations using coding agents in GitHub Actions to handle triage, documentation, code quality, and more.
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Phillip Carter @phillipcarter.dev · 08/02/2026
Good report from @dsyme.bsky.social dsyme.net/2026/02/08/j...
dsyme.net
Spike from July 2025: Creating a Programming Language using Coding Agents on GitHub
People using “coding agents in a loop” have discovered the joy of implementing programming language compilers using this technique. It’s a lot of fun it’s impressive how muc…
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amplifyingfsharp.io @amplifyingfsharp.io · 10/02/2026
Next week @dsyme.bsky.social shows how agentic workflows can continuously improve #fsharp libraries. amplifyingfsharp.io/sessions/202...
amplifyingfsharp.io
Boosting F# Libraries with Automated Agentic AI | Amplifying F#
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Aaron Wislang 🇨🇦 @aaronw.dev · 13/02/2026
Automate repository tasks with GitHub Agentic Workflows by Don Syme (@dsyme.bsky.social) & Peli de Halleux (@pelikhan.bsky.social) github.blog/ai-and-ml/au...
github.blog
Automate repository tasks with GitHub Agentic Workflows
Build automations using coding agents in GitHub Actions to handle triage, documentation, code quality, and more.
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Don Syme @dsyme.bsky.social · 27/01/2026
It incredible to think that the Lady in Pink likely saved multiple, if not eventually 100s of Minnesotan lives. And yes it was headed in that direction. The provocation so obvious, so deliberate. Simply by having the courage to stand and film, then the calmness to upload, before suppressed.
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Don Syme @dsyme.bsky.social · 27/01/2026
On this Monday, Feb 2nd, 7:30pm, Byline Times will be hosting an in-person event on their "Lure Of..." series! Come along and discuss real political and social topics in-person - be part of something different. cc @bylinetimes.bsky.social www.thecockpit.org.uk/BylineTimes #bylinetimes
thecockpit.org.uk
The Lure of Loneliness
Produced and presented by Byline Times and The Cockpit Our Lure Of… events at the Cockpit are back for 2026. Intimate, open conversations where Byline Times contributors, readers, and supporters –
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Don Syme @dsyme.bsky.social · 03/01/2026
People are saying "it's like 1914" or "it's like 1939". Honestly it's not. It's 1984.
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Don Syme @dsyme.bsky.social · 31/12/2025
Since @zackpolanski.bsky.social's economic advisors are under scrutiny, here's my old twitter argument with @meadwaj.bsky.social, where he used the weird wordsmithing of leftist "economists" to argue that the price of imported gas is not affected by the UK interest rate 😂
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jkone27 @jkone27.bsky.social · 28/12/2025
This would be a great addition to ionide if it was possible to host it vscode side somehow 💫... Could technically MCP servers be hosted within vscode itself and run locally ?
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dgrimminck.bsky.social @dgrimminck.bsky.social · 22/12/2025
Lately I started using VScode-ionide-copilot-mcp-server combi, that is giving me even better results. github.com/jovaneyck/fs...
github.com
GitHub - jovaneyck/fsi-mcp-server: A wrapper around F# interactive (fsi) that exposes an MCP server endpoint for AI agents allowing for fsi IO.
A wrapper around F# interactive (fsi) that exposes an MCP server endpoint for AI agents allowing for fsi IO. - jovaneyck/fsi-mcp-server
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Dag Brattli @dbrattli.bsky.social · 21/12/2025
My F# Advent Calendar post about Fable.Python (and ended up with Fable.Literate 🙈). Learn how you can use Pydantic, FastAPI with Fable 🐍🦔 cardamomcode.dev/fable-python #FsAdvent #fsharp #fablecompiler #python
cardamomcode.dev
Fable Python
Introduction to Fable.Python This post is part of the F# Advent Calendar 2025. Thank you, Sergey Tihon, for organizing this wonderful tradition that brings the F# community together every year! Welcome to this guide on Fable and Fable.Python - a co...
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Scott Wlaschin @scottwlaschin.bsky.social · 22/12/2025
My #fsharp #FsAdvent post for 2025 is up. It's about applying my functional DDD design principles to an unusual non-business domain, which is my hobby of hand weaving! Anyone else weave? I'd love any comments. fsharpforfunandprofit.com/posts/design... Thanks as always to @sergeytihon.com
fsharpforfunandprofit.com
Designing weaving software
Applying my design principles to an unusual domain
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Sergey Tihon 🦔🦀 @sergeytihon.com · 22/11/2025
F# Weekly #47, 2025 - F# 10 & last #FsAdvent slots #fsharp sergeytihon.com/2025/11/22/f...
sergeytihon.com
F# Weekly #47, 2025 – F# 10 & last #FsAdvent slots
Welcome to F# Weekly, A roundup of F# content from this past week: News Introducing F# 10 – .NET Blog Introducing C# 14 – .NET Blog Introducing Major New Agentic Capabilities for GitHub…
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Tomas Petricek @tomasp.net · 14/11/2025
F# 10 makes it possible to use let! .. and! to await two tasks in parallel. This brings back some memories!
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Sergey Tihon 🦔🦀 @sergeytihon.com · 02/11/2025
Hey #fsharp, what we do with #FsAdvent this year? sergeytihon.com/fsadvent/ Do we have 24 F#ers ready to participate?
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Don Syme @dsyme.bsky.social · 01/11/2025
The scenes of genocide and massacres coming out of Sudan are utterly gut-wrenching, and amongst the most inhumane things I've ever seen. The UAE - Dubai, Abu Dhabi - is grotesque in its support for these militias, and for not exerting its power to prevent this. #Sudan
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Don Syme @dsyme.bsky.social · 01/11/2025
Achievement unlocked! Mentioned in the same tweet as Wittgenstein and Dijkstra! 😜🤪 x.com/therealchrek...
x.com
chreke on X: "however, as @dsymetweets points out in “On Natural Language Programming” (https://t.co/45IEBMZLa9), maybe this ambiguity is not a weakness, but a strength? even though it is ambiguous, a product manager can usually instruct a programmer with reasonably predictable results 3/7" / X
however, as @dsymetweets points out in “On Natural Language Programming” (https://t.co/45IEBMZLa9), maybe this ambiguity is not a weakness, but a strength? even though it is ambiguous, a product manager can usually instruct a programmer with reasonably predictable results 3/7
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Don Syme @dsyme.bsky.social · 26/10/2025
I looked up antifa events in London, it's so terrifying, there's a metal group and some people singing sea shanties.
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Don Syme @dsyme.bsky.social · 19/10/2025
Thinking ahead. What would you choose?
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Sergey Tihon 🦔🦀 @sergeytihon.com · 18/10/2025
F# Weekly #42, 2025 - Hi, Victor & .NET 10 RC2 #fsharp sergeytihon.com/2025/10/18/f...
sergeytihon.com
F# Weekly #42, 2025 – Hi, Victor & .NET 10 RC2
Welcome to F# Weekly, A roundup of F# content from this past week: News Announcing .NET 10 Release Candidate 2 – .NET Blog Announcing the .NET Security Group – .NET Blog .NET and .NET F…
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pasttensehistories.bsky.social @pasttensehistories.bsky.social · 18/10/2025
‘A Shabby London Suburb’ Combined map /walking guide to some of the radical & working class history of Hammersmith Featuring Revolting peasants, suffragettes, socialists, irish republicans, suffocated tory MPs & more! Available to buy online: pasttensehistories.bigcartel.com/product/a-sh...
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Don Syme @dsyme.bsky.social · 13/10/2025
My latest post is out! 🔄 Introduce "Semi-automatic Performance Engineering" 🏆 A Grand Challenge for CS 🧩 Why it's hard, heterogeneous ✨ Show GitHub Agentic Workflows "Daily Perf Improver" 🔮 What's Possible, Potential, and Delusional 🧹 Let's tackle technical debt! dsyme.net/2025/10/12/t...
dsyme.net
Introducing Semi-automatic Performance Engineering
(This blog post is written in personal tone, but relates to our work at GitHub Next and may be moved to in future. A huge thank you to Peli de Halleux, Joe Zhou, Eddie Aftandilian, Russell Horton, …
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