Krzysztof Cieslak's Avatar

Krzysztof Cieslak

@kcieslak.io

Artist 🎨 | Photographer πŸ“· | Globetrotter 🌍 | Speaker πŸ€ΉπŸ»β€β™‚οΈ | Author of Ionide πŸš€ | Researcher @ Github Next πŸ”¬| Co-creator of #GitHubCopilot, Copilot NES, Agentic Workflows, and [REDACTED] | Building the future of software development πŸ’»

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25.04.2023
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Latest posts by Krzysztof Cieslak @kcieslak.io

I wish AI could replace me

10.03.2026 18:04 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I loved Twitter, despite its many imperfections.

Then Elon Musk fucked up Twitter beyond all recognition.

I will never, ever forgive him for that.

I now love Bluesky, despite its many imperfections.

With all due respect, please don’t fuck up Bluesky or I will never, ever forgive you.

Thank you.

09.03.2026 19:54 πŸ‘ 199 πŸ” 26 πŸ’¬ 5 πŸ“Œ 2

I wish I had any viable path to earning good money as a photographer…

Step one would be being actually good photographer, which I’m not, but rest of the story is just as shitty

09.03.2026 19:10 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Fairly sure this ain't the MSFT role that matches my profile :>

09.03.2026 15:27 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
TradeKart | The rapid delivery app for tradespeople Trade materials delivered in as little as 1 hour. Get the materials you need delivered in an instant. Stay in control with real-time tracking, so you’ll know exactly when your order is picked, packed,...

Hey #fsharp sky!

We have an upcoming role for a dev working at tradekart.com.

Full-Stack, with strong FE skills. We have some react apps, but will probably be looking to build some stuff in HTMX (or similar tech) in next few months.

DM me for more details, please repost for reach.

05.03.2026 11:55 πŸ‘ 10 πŸ” 7 πŸ’¬ 4 πŸ“Œ 0

The discord is cool, kind of quiet but now and then someone will do something like drop some cutting edge stuff out of nowhere.

06.03.2026 21:09 πŸ‘ 26 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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β€œYou’re absolutely right!” The year is 2006. A contract web developer who is working from home decides to take his Pomodoro break by walking to a thrift store down…

What if you gave a web developer from 2006 Claude?

04.03.2026 21:16 πŸ‘ 3 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

Tomorrow is our @githubnext.com meetup in London - 100 people registered for it (I believe this was our space limit).

I can’t wait to show y’all cool stuff (some secret too πŸ˜‚) stuff we are cooking, and I’m super excited to see community presentations.

See you tomorrow!

02.03.2026 21:32 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Just a matter of time before one of our more putinized Trumpers calls this a "special military operation"

02.03.2026 14:21 πŸ‘ 1655 πŸ” 361 πŸ’¬ 64 πŸ“Œ 16

OpenAI posted the terms of the deal. Reveals that it absolutely does allow for domestic surveillance. EO 12333 is how the NSA hides its domestic surveillance by capturing communications by tapping into lines *outside the US* even if it contains info from/on US persons.

openai.com/index/our-ag...

01.03.2026 05:20 πŸ‘ 2641 πŸ” 1161 πŸ’¬ 30 πŸ“Œ 72
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F# Weekly #9, 2026 – Crunching the Technical Debt with Repo Assist Welcome to F# Weekly, A roundup of F# content from this past week: News Pure-F# training/inference workflow around Qwen3-4B with NVFP4 [Poll] Consider changing the default of fsharp_multiline_brack…

F# Weekly #9, 2026 - Crunching the Technical Debt with Repo Assist #fsharp sergeytihon.com/2026/03/01/f...

01.03.2026 10:37 πŸ‘ 16 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0

Just joined Bluesky! Senior F# engineer based in Barcelona β€” 10+ years building production systems with DDD, event sourcing, and Ports & Adapters. Excited to connect with the functional programming community here.
#fsharp #dotnet #functionalprogramming

28.02.2026 19:25 πŸ‘ 15 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

OpenCode is really magical experience as developer productivity tool.

28.02.2026 14:38 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

The concentration camps we are building are not for immigrants, they are for enemies of the reich.

28.02.2026 13:58 πŸ‘ 33 πŸ” 2 πŸ’¬ 3 πŸ“Œ 0

Vibe coding make the code production cheaper and while there is an opportunity to enter existing markets, there are many capital-intensive barriers that will foil those attempts.

Distribution channels, existing customers, migration, contracts, marketing - all of those need real bodies and money.

27.02.2026 23:17 πŸ‘ 25 πŸ” 3 πŸ’¬ 6 πŸ“Œ 1

They don't want to remove responsible AI controls and filters built into models/APIs so DoD can't use it to control drones that would kill civilians or something

27.02.2026 22:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

So at the same time it's useless radical left AI company, and it's so important that multiple federal agencies are already using it including departament of fucking war...

27.02.2026 22:05 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

bsky.app/profile/pear...

27.02.2026 22:03 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

holy... what a huge W for anthropic, and perfect free marketing

27.02.2026 21:46 πŸ‘ 5 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I’m looking for participants for a paid user study on a prototype system for tabular programming (programming with tables / data frames).
2 hours β€’ $50 Visa prepaid card
Hoping to finish sessions by March 13.
Details + sign up in 🧡
Reposts appreciated! πŸ™

27.02.2026 19:16 πŸ‘ 7 πŸ” 12 πŸ’¬ 1 πŸ“Œ 0

No single developer productivity tool will change how software development looks like.

27.02.2026 15:18 πŸ‘ 2 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

The future of software development is exactly as its past and present.

It's about collaboration with people to make right decisions.

27.02.2026 15:17 πŸ‘ 8 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0

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

27.02.2026 11:43 πŸ‘ 16 πŸ” 4 πŸ’¬ 2 πŸ“Œ 0

fwiw, claude code is also not the future, but at least it's step in right direction

27.02.2026 13:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

so apparently "dump cursor for claude code" thing is going viral... who would have thought that vscode forks are not the future of software development... just who. :>

27.02.2026 13:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Developers: oh no AI slop is attacking our repos!

Me: Hey, lovely AI can you take my job as a maintainer of OSS repos, thanks, you're doing great.

26.02.2026 13:04 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Just lucky πŸ˜…

26.02.2026 10:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Earlier this week was the 5th anniversary of Oege de Moor showing me the project, that would later be called Copilot, for the first time.

My first reaction was β€œit can’t work” πŸ˜‚ But hey, we all make some mistakes about our predictions about the future πŸ˜…

The rest is history…

#copilot #ai

26.02.2026 00:50 πŸ‘ 13 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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If you are using iOS and have installed GitHub app you can create shortcut that will trigger Repo Assist agentic workflow with single touch of your phone.

#ContinuousAI #AgenticWorkflows

25.02.2026 21:02 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Suggestion: Add yaml type provider to F# data family? Β· Issue #1645 Β· fsprojects/FSharp.Data Probably needs few revisions for modern dotnet and dependant packages? https://fsprojects.github.io/FSharp.Configuration/YamlConfigProvider.html

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

25.02.2026 17:20 πŸ‘ 22 πŸ” 6 πŸ’¬ 2 πŸ“Œ 0