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eeue56

@derw-lang.com
1.1K followers 436 following 99 posts

Write about language design, perf, lifting people up, and pragmatism. I take joy from when things are done well, by people who enjoy doing them Creator of the Derw language. Leader of Tekna's developer network. Tech Enabler @ Schibsted Media

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eeue56 @derw-lang.com · 06/07/2026
But also, passing off vibes as actual software engineering will be the death of open source. Especially since an increasing amount of people will only consider a project if the README looks like LinkedIn's vomited all over it, regardless of the quality of the code. Now that's truly sad!
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eeue56 @derw-lang.com · 06/07/2026
It's okay to be sad when someone else has the same idea as you, but they get more success from it. It's okay to be sad when someone else writes similar code to you, but they get more success from it. But, in the end... meh. That's life. You'll have a ton of other ideas, and you'll write more code
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eeue56 @derw-lang.com · 06/07/2026
Hilarious debate: a vibe coder argues with another vibe coder over who owns an idea and execution. Neither of them own the idea. The idea's been had a million times before. Neither of them own the code. It violates copyright just by existing[0]. [0] - my code's copyright has been violated by AI
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eeue56 @derw-lang.com · 17/05/2026
Made an emoji-based programming language to demonstrate language syntax! open.substack.com/pub/compscif...
open.substack.com
Code syntax for vibe coders
And why does it matter? I built a programming language to demonstrate and show how syntax works.
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eeue56 @derw-lang.com · 11/11/2025
Journalist friends on Bluesky: how is Linux seen in your organisation? #press #journalism Do you have active internal users? Is it the default? Would be very useful to know!
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eeue56 @derw-lang.com · 03/11/2025
Spoons (mental energy) available to an individual is rarely consistent. Changes in situation may increase or decrease spoons available. My spoon count changes drastically, rapidly. This is how I understand and adapt to my new energy levels! open.substack.com/pub/savingsp...
open.substack.com
Understanding changes in mental energy capacity
Spoons (mental energy) available to an individual is rarely consistent. Changes in situation may increase or decrease spoons available. My spoon count changes drastically, rapidly. This is how I under...
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eeue56 @derw-lang.com · 21/10/2025
As AI is producing code, here's a primer on software engineering that I, a human software engineer, wrote. Each topic in this article is one I'd expect a junior developer to be aware of, and I'd expect a senior developer to be deeply familiar with open.substack.com/pub/theteche...
open.substack.com
Software engineering primer for non software engineers
With AI providing a route for people without software engineering backgrounds to produce code, I figured giving some context on the important parts of software engineering would be useful.
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eeue56 @derw-lang.com · 18/10/2025
I'm doing a lot of different things, but have a low spoon count. How do I figure out how to spend my time? It starts by tracking. Relentless optimisation, saying "no", and understanding myself are core to making it seem like you've found 25 hours in a 24 hour day. open.substack.com/pub/savingsp...
open.substack.com
Tracking value for your effort
Spoons are a representation of energy available to each person. To use spoons more effectively, insight into how spoons are being used can help optimise high-reward tasks.
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eeue56 @derw-lang.com · 04/10/2025
Early start to a long day, as I head to Tekna's offices to host Oslo's NASA space apps challenge hackathon
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eeue56 @derw-lang.com · 02/10/2025
There’s always something more you want to do. Some goal you’ve dreamed of achieving, some life you wish you could live. If only you had infinite time, you’d be able to do them all and more. Sadly, time and energy is not infinite. Join me to learn how to optimize! open.substack.com/pub/savingsp...
open.substack.com
Helping others save spoons
Time management is hard. Effective use of time on things you enjoy or you benefit from can really help to make dreams reality. Even more so if you're low on daily spoons - a metaphor for energy. I'm l...
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eeue56 @derw-lang.com · 20/09/2025
Any Norwegians know what user-agent you should be using for very infrequently requests against Yr for personal use only? All the docs point towards the user-agent being based on application or company names. What if you're making neither and just want some local weather data?
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eeue56 @derw-lang.com · 09/09/2025
Aha, that makes sense! We were a bit confused initially when comparing to NRK, because of default prognosis view - gave us a little panic when we didn't see our numbers matching :D But we spotted that quickly, one of the benefits of having multiple eyes and brains in the same room 😁
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eeue56 @derw-lang.com · 09/09/2025
It was most notable between 21:20 - 22:00 as the next waves of results were coming out piece by piece if that helps!
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eeue56 @derw-lang.com · 09/09/2025
Of how far ahead we were? Our importer (and sites) was around 0.5-1% on average ahead of NRK and others. I'm not 100% sure why we were ahead, but our importer was pretty fast, and the numbers quickly updated client-side which might've helped. Very short TTL on the results API data
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Reposted by eeue56
Astro @astro.build · 09/09/2025
Last election, Norway’s biggest news site went down for 3 hours. This year, VG chose a new stack to make sure that didn’t happen again. Elections — powered by Astro and @svelte.dev
Election results data on VG.no

The headline in Norwegian reads “Stortingsvalget 2025” and a large visualization shows 87 seats for Støre in red and 82 for Listhaug in blue.
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Reposted by eeue56
Astro @astro.build · 09/09/2025
Learn what election night looks like for tech teams: thetechenabler.substack.com/p/norwegian-... And check out all the results: www.vg.no/valg/norge/2...
thetechenabler.substack.com
Norwegian Elections and news tech preperations
Last election, Norway’s biggest news site (VG) went down for around 3 hours. This time, we made sure it didn't.
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eeue56 @derw-lang.com · 06/09/2025
Part of @lobsters-feed.bsky.social's blog festival with the prompt is: What have you made for yourself? It turns out... A lot! Libs, programming languages, testing frameworks, servers, games, Chrome extensions. Even wrappers around version control systems. open.substack.com/pub/theteche...
open.substack.com
Something I made for myself - hiraeth, gobaith, and derw
There are two personality traits I value highly in myself: the desire to do things correctly, and the desire to be pragmatic.
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eeue56 @derw-lang.com · 20/08/2025
First time in a long time, I've published a Derw release! Tooling around Derw has been rock-solid and reliable - like bach (test lib), coed (v-dom). There's many things I could improve. Returning to a project after a time away brings fresh inspiration and prioritisation. Blog post incoming!
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eeue56 @derw-lang.com · 16/08/2025
Wanted: a fork of vscode that supports all the same extensions, but has absolutely 0 mention of Copilot or AI anywhere in the codebase.
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eeue56 @derw-lang.com · 15/08/2025
Ever seen a website put every single individual character into it's own span? With no purpose for doing so? I have. AMA
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eeue56 @derw-lang.com · 28/07/2025
Had fun making a little development http server. Why? Cause #python -m http .server doesn't have live reload or br/chunking of video, and every #nodejs dev server I found pulled in like a billion deps. But it's all easy with the stdlib. Gweld, the welsh for "see" or "watch": github.com/eeue56/gweld
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eeue56 @derw-lang.com · 23/07/2025
Recently got asked about Schibsted’s Open Source office. OS is an important yet overlooked part of a company’s stack, and we support or encourage OS. We are a news media company, not a big tech company. So why and how do we contribute to open source? open.substack.com/pub/theteche...
open.substack.com
Schibsted's Open Source office
Open Source is an important yet overlooked part of a company’s stack, and our office is dedicated to supporting or encouraging open source. We are a news media company, not a big tech company. So why ...
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eeue56 @derw-lang.com · 17/07/2025
There’s no fighting vibe-coding: a growing number of AI tools make it inevitable. It’s easier to give people a way to do it safely. I’ve set up Coder to safely run on our infra. It’s impressive journalist can do when given the right tools, in the right way. open.substack.com/pub/theteche...
open.substack.com
Running a vibe-code platform (Coder) on your own infrastructure
Non-devs are vibe-coding programs, without any knowledge on how to read or write code. There’s no fighting it: the growing number of AI tools make it inevitable. Instead, it’s easier to safely give pe...
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eeue56 @derw-lang.com · 01/07/2025
I spend a lot of my time writing, reading, thinking. Often I write to solve problems: either my own problems, or to help others solve their own problems. Writing is a big part of my role. So, I'm writing a book, all about tech enablement / staff engineering! open.substack.com/pub/theteche...
open.substack.com
Announcing: Egoless Engineering, a tech enablement handbook
I spend a lot of my time writing, reading, thinking. Often I write to solve problems: either my own problems, or to help others solve their own problems. Writing is a big part of my role at Schibsted....
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eeue56 @derw-lang.com · 21/06/2025
I recently hosted a general “Data & AI” hackathon at Schibsted, for all and any employees who wanted to join. It got me thinking about how vibe-coding, and hackathon success. p.s I also created a vibe-coded visual programming language in 1.5 hours! open.substack.com/pub/theteche...
open.substack.com
Hosting a vibe-coding hackathon
I recently hosted a general “Data & AI” hackathon at Schibsted, for all and any employees who wanted to join. It got me thinking about how vibe-coding, and hackathon success.
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eeue56 @derw-lang.com · 24/05/2025
Youtube Premium (+ Google One / YT Music) has been absolutely worth it for me. Haven't seen an ad in years, but the creators still get revenue. I heard they even find Premium subscribers more valuable than ad revenue. Ads need to die as a concept (he says, while working in news media 😬)
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eeue56 @derw-lang.com · 01/04/2025
I may have created a new toy language just for this talk The idea being that the toy language is going to have an amazing tool suite, but be a relatively useless language. So far: repl, auto-formatting, debugger, syntax highlighting, LSP
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eeue56 @derw-lang.com · 26/03/2025
Compilers and language design event on April 28th. Three language creators (Gren, Sixten, Derw), and contributed to others (like Elm). Curious about parsers? Or performance of dependent types? Or tradeoffs of language design? Join us in person in Oslo, or online! www.tekna.no/en/events/in...
tekna.no
Inside the Compiler: Language design and compilation
Ever wondered what it takes to create a programming language?
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eeue56 @derw-lang.com · 24/02/2025
Can you spot fact or fiction in Norwegian, Swedish, UK or USA news? Try this quiz I've made! eeue56.github.io/heddwch/fact...
eeue56.github.io
Heddwch - loading
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eeue56 @derw-lang.com · 10/02/2025
I spent some time mapping out personas I've interacted with in Open Source, and what drives their motivation to take part. Helpful people, trolls, lurkers, and more! #opensource open.substack.com/pub/theteche...
open.substack.com
Personas in open source communities
Open source is the collective energy of a shared interest in a topic. Some will be there because it's part of their work. Others out of personal interest. What are the people involved motivated by? An...
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eeue56 @derw-lang.com · 06/02/2025
Randomized coffee chats between employees can help make everything easier. As an organisation changes, or grows, there’ll be people who don’t know each other. Collaboration is easier if you know each other, even if the coffee chat topic is unrelated to work. open.substack.com/pub/theteche...
open.substack.com
Coffee chats: getting to know an organisation
Randomized coffee chats between employees can help make everything a little easier. It makes collaboration easier if you know each other, even if the coffee chat topic is unrelated to work. Here's how...
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eeue56 @derw-lang.com · 14/01/2025
Thought about exactly this today. I have an API I've been working on, reimplemented a couple of times while finding the solution both for code safety and performance. I went for a walk, without intentionally thinking about it, and landed on a solution. Walks always help me. Showers, sleep too.
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eeue56 @derw-lang.com · 13/01/2025
If you've ever wondered how organised fact checking is done, I wrote an article about ClaimReview (fact checking's schema), how AI changes the use of ClaimReviews, and why social media removing the use of 3rd party fact checking is bad for society (in my opinion) www.linkedin.com/pulse/how-fa...
linkedin.com
How fact checking works, AI's impact, and why removing fact checking from social media harms society
This is a special article, inspired by Meta's removal of 3rd party fact-checking in favour of community notes. First we'll talk about how fact checking works, then AI's impact, then finally discussing...
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eeue56 @derw-lang.com · 04/01/2025
Two constants on the BBC: 1) They will try to link any tragedy to British people, ignoring the rest of the humans who suffered 2) They will try to humanize and paint the royal family in a good light
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eeue56 @derw-lang.com · 04/01/2025
Naming standards and file layout generally in React codebases is kind crazy. I sometimes wonder what kind of code editor the person who decided "one function one file" had. Files, files everywhere (I know it's related to code splitting)
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eeue56 @derw-lang.com · 03/01/2025
In my various roles in different parts of the tech world, I see the tech industry struggling. Those training, implementing or creating LLMs have a duty to society. There must be push back, to help define how we as an industry want to work with AI #opensource open.substack.com/pub/theteche...
open.substack.com
Is Github a trustworthy keeper of our code?
In my various roles in different parts of the tech world, I see the tech industry struggling. Those training, implementing or creating LLMs have a duty to society. There must be push back, to help def...
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eeue56 @derw-lang.com · 31/12/2024
(commenting to save for later)
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eeue56 @derw-lang.com · 29/12/2024
Yes! The src/render/interactiveQueries.ts file might be some good inspiration - it's a query builder on top of the collected data github.com/eeue56/gobai...
github.com
GitHub - eeue56/gobaith: A mental health tracker for developers, by a developer
A mental health tracker for developers, by a developer - eeue56/gobaith
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eeue56 @derw-lang.com · 29/12/2024
IMO since the exact relationship between the data points is variable, the best approach is to track, then apply analysis to the data e.g sleep vs exercise doesn't directly scale, due to the number of factors involved This is what I do in my mood tracker, fwiw!
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eeue56 @derw-lang.com · 29/12/2024
Gotcha - so it is tracking those habits over time, then identifying trends between habits and behaviours? It depends if you want to analyse them, or only a way to represent them.
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eeue56 @derw-lang.com · 29/12/2024
Couple of thoughts: - What is the type signature of `write`, if it's being expanded to cover AWS APIs? - What's the API design reasoning for exporting everything from "bun", rather than "bun/s3"? - What value does this provide vs using existing AWS libraries today?
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eeue56 @derw-lang.com · 29/12/2024
Do you have an example of what you mean? A typical case might be an event log - represent all possible union behaviours as a union, then log and track each event type as they occur. Very typical in languages like Elm, Derw, F# - but also common in TypeScript, just less so as they have local state
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eeue56 @derw-lang.com · 29/12/2024
Ideas often are shut down when they don't fit every possible user. But some powerful words a creator can say is "if you don't want to use this, that's okay, someone else does" To detach from mega-corporations, we must invest in small sustainable products open.substack.com/pub/theteche...
open.substack.com
Understand, embrace, and love your product's niche
Some of the most powerful words a creator can say is "if you don't want to use this, that's okay, because someone else does". It is okay to build things that are not intended for everyone. It is okay ...
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eeue56 @derw-lang.com · 27/12/2024
I get annoyed when people take hardcore stances without understanding the context or the nuances in the stances of others. I love arguing. I do it at all the time, if I think it's worthwhile. But a good argument starts by holding back the emotional reaction, and focusing on understanding each other
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eeue56 @derw-lang.com · 27/12/2024
I don't see any answers to that question in the thread, but maybe I'm missing it on mobile. Either way, esbuild is a totally normal tool to use in a JS stack.
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eeue56 @derw-lang.com · 26/12/2024
Just so I understand - what are you considering Bun / Node to be a replacement for? esbuild is a reliable tool which is always my first to reach for - especially for build speed, the low config approach. Webpack/Gulp were all not great in that regard. There is Rollup etc, but esbuild is excellent.
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eeue56 @derw-lang.com · 26/12/2024
Handy to do reflection type stuff at runtime like not needing as const magic to get the values represented in a type (i.e kind properties) Or things Zod is used for - easier to create powerful parsers if you have type info at runtime But it's also not needed if the type system has certain features
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eeue56 @derw-lang.com · 26/12/2024
Seen at midnight in Lima. A magical mission begins at a gas station
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eeue56 @derw-lang.com · 24/12/2024
Many (most at this point) of my dev devices have been Chromebooks, in all price ranges - way cheaper than even a second hand Macbook Air. Not that the Apple Silicon CPUs aren't amazing though, super impressive.
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eeue56 @derw-lang.com · 22/12/2024
It is sad that Apple has been allowed to lock their ecosystem development tools behind having massively expensive devices. Very thankful for Phonegap (then Cordova) in the old days making it possible to avoid enabling Apple's developer hostility. Now to try out Capacitor with AppFlow to avoid 💰🍎
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