Andreas Holley's Avatar

Andreas Holley

@duk.im

Backend Eng & Open Banking at Monzo Sometimes write stuff at blog.duk.im

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18.01.2025
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Latest posts by Andreas Holley @duk.im

Gives off slight continvoucly morging energy, some arrows come from the holes, some come from the cheese

06.03.2026 10:04 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Where technical debt comes from

17.02.2026 11:25 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Skill issue

14.02.2026 11:47 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Video thumbnail

@samwho.dev how long is your bread or how short is your toaster

14.02.2026 10:50 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I think this one isn’t your standard spring and latch for on systems - it looks to have a temperature dial, timer dial, and then the lever is just a β€˜move the bread up and down’, rather than switching on/starting the toasting process

08.02.2026 12:45 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Preview
4 Slice NewGen Classic Toaster The 4 Slice NewGen Classic Toaster, expertly handmade in the UK. Toast buns, bagels, or frozen bread with our energy-efficient, unique ProHeat features.

Apparently this is good but it’s over 200 quid www.dualit.com/products/4-s...

08.02.2026 09:23 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Considering how high tech other kitchen gadgets are these days it’s always a surprise to see how unevenly hot the heating elements on a toaster get. Wonder how much you have to pay for something that isn’t just some hot bendy wires sitting near your bread

08.02.2026 09:21 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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GitHub - steipete/CodexBar: Show usage stats for OpenAI Codex and Claude Code, without having to login. Show usage stats for OpenAI Codex and Claude Code, without having to login. - steipete/CodexBar

Using @steipete.me's wonderful github.com/steipete/Cod...

07.02.2026 14:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Screenshot showing codexbar with codex usage, session with 81% left with 53 minutes until reset

Screenshot showing codexbar with codex usage, session with 81% left with 53 minutes until reset

Meanwhile codex with ~5x the tokens used, so if anything I'm getting ~25x the usage?? Something seems not right here. Claude code is usually _fine_ when I use just sonnet in a single instance without a bunch of sub agents.

07.02.2026 14:19 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Yeah this new agent team mode with Opus 4.6 and the pro plan are not made for each other, blew past my 5 hour limit in 11 minutes.

07.02.2026 14:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

We have Claude with ~uncapped spend at work so I’m pretty invested on that side of things and make good use of it. But codex also lets me use the plan with Opencode so another thing to look into (I used opencode with Minimax quite a bit a few weeks ago and it was pretty close to Claude with Sonnet

07.02.2026 13:07 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I tried out codex for some personal stuff (have a month free of the plus plan), and it seems like I have easily 10x the limits with 5.3 codex vs Claude code with the pro plan (same price, and I’ve been paying monthly since November).

The desktop app seems pretty nice too

07.02.2026 13:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 1
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AI can do this, whatever this is

04.02.2026 12:16 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Advert on the tube for β€˜access training’ suggesting AI can’t do pipes

Advert on the tube for β€˜access training’ suggesting AI can’t do pipes

Can’t do what? Make an absolute mess of some pipes?

04.02.2026 12:13 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I'm seeing way more open source projects pop up because of AI - whether they'll stay maintained or are actually good is another question, but how much of existing open source is actually good and stays maintained?

In a way AI derisks the abandoned projects a bit if you can maintain it yourself now

26.01.2026 22:03 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Post image Post image

I did this prompt and it kinda looks good?

25.01.2026 12:52 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Galaxy brain meme

"same look and feel on all platforms"

"stick to the platform look and feel while keeping the brand design in there"

"ask claude "make the ui look good""

Galaxy brain meme "same look and feel on all platforms" "stick to the platform look and feel while keeping the brand design in there" "ask claude "make the ui look good""

25.01.2026 12:20 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

But what does consistent mean and what is good?

How much do you lean into to the platform design language to make your app feel native, at the risk of having two (or more - what about web?) quite distinct app designs.

Another place this happened was the switch from native desktop to electron apps

25.01.2026 11:51 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Reddit also used this rightward arrow. Maybe Bluesky trying to standardise on a cross platform UX rather than differing device native? We definitely think about this and make tradeoffs at Monzo, in terms of design language overlap

25.01.2026 11:44 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Three share icons from different platforms

Three share icons from different platforms

Having been previously in the Android ecosystem for a while, I was used to the one on the right here being the default (supposedly comes from Wordpress but adopted by Google/Samsung on Android). Middle is Apple, and left came from Facebook?

25.01.2026 11:42 πŸ‘ 8 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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GitHub - dukky/linear: Linear CLI tool for programatically reading, listing, and creating linear issues Linear CLI tool for programatically reading, listing, and creating linear issues - dukky/linear

github.com/dukky/linear tool for interacting with Linear, mainly intended for use with claude, with the aim of avoiding the ~20k token cost of Linear's MCP. Have been using this since November but just made some updates and opensourced it today

24.01.2026 17:24 πŸ‘ 4 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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AI Model & API Providers Analysis | Artificial Analysis Comparison and analysis of AI models and API hosting providers. Independent benchmarks across key performance metrics including quality, price, output speed & latency.

artificialanalysis.ai?models=gpt-5... o think these are against the same benchmark? Can pick any model for the charts though

22.01.2026 09:11 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

For context - unlike most stations, but similar to other terminals, platforms at Euston are often announced late causing a big rush to get to the platform and get a seat. Various sites show 'booked' platforms the train is likely to come in to, this takes it a step further showing incoming delays

17.01.2026 19:36 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Commuter - UK Train Tracking UK train tracking with incoming train intelligence. Know why your train is late.

Another thing I vibecoded - commuter.dev.duk.im

Kinda like RealTimeTrains (see the platform before it's announced, useful at London Euston), but also matching up the incoming train, to give you an idea if things are going to be delayed before it's announced on the boards.

17.01.2026 19:32 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Building a Toy Database in Go | dukky's blog Implementing simple database storage engines while reading DDIA Chapter 3

blog.duk.im/posts/toy-da... My second blog post! This one's on playing around with database storage engine fundamentals, from Designing Data-Intensive Applications.

04.01.2026 23:20 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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GitHub - dukky/skull-king-scorer: Web app to score skull king games Web app to score skull king games. Contribute to dukky/skull-king-scorer development by creating an account on GitHub.

Source on Github github.com/dukky/skull-...

04.01.2026 11:33 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Skull King Scorer Score tracker for the Skull King card game. Easy to use scoring app for your pirate adventures.

Fully vibe coded a scoring app for the card game 'Skull King' over new year, skullking.dev.duk.im. First version ~2-3 minutes prompting Claude on iOS to get something that would have taken me hours. But ended up iterating, adding small features, and fixing bugs for ~4-5 hours to get it 'good enough'

04.01.2026 11:31 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I remember from the early days of LLMs (pre ChatGPT), where main way to get anything useful out of them was providing a few examples and then asking for more. Think it was called β€œone shot” or β€œfew shot” learning.

04.01.2026 10:31 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Screenshot of Claude Code terminal with text saying "You're absolutely right again!"

Screenshot of Claude Code terminal with text saying "You're absolutely right again!"

This was a new one for me today. Normally I'm only absolutely right just the once

29.12.2025 17:30 πŸ‘ 6 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Screenshot of hacker news heading with LLM generated 'real' headline

Screenshot of hacker news heading with LLM generated 'real' headline

@samwho.dev the benefits/pitfalls of getting HN front page, getting AI roasted news.ycombinator.com/item?id=4632...

19.12.2025 15:43 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0