iiinova — where your digital self keeps evolving

Johan Carlin @johancarlin.com · 26/09/2026

Also known as a "mountain bike" Everything old is new again

Johan Carlin @johancarlin.com · 22/09/2026

LLM prompting works best if you treat it like a tree rather than a linear conversation, but the UI for this is quite awkward at the moment

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Johan Carlin @johancarlin.com · 06/09/2026

It's actually documented behaviour for astra - developers.openai.com/api/docs/gui...

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Johan Carlin @johancarlin.com · 01/09/2026

The new work mode in chatGPT is everything that codex cloud never was. 60 minutes of dev work from a prompt I sent off on the subway. No self hosting, no security theater, it just did it. Well impressed

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Johan Carlin @johancarlin.com · 08/07/2026

Really like this because it describes a common mindset concisely. I disagree, but if this is what you get out of coding I understand why this moment is not great for you

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Johan Carlin @johancarlin.com · 07/07/2026

Love when internal tooling ends up in the production build. Here the kids app for SVT, the Swedish national broadcaster

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Johan Carlin @johancarlin.com · 19/06/2026

New Marimo release adds support for multithreading and multiprocessing in WASM python notebooks 🤯 github.com/marimo-team/...

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Johan Carlin @johancarlin.com · 01/06/2026

The good news is that eufy is finally rolling out e2e encryption for their surveillance cameras. The bad news is that this kind of password policy hints at less than fantastic encryption implementation

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Johan Carlin @johancarlin.com · 24/05/2026

This is seriously addictive though, have to self bind somehow

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Johan Carlin @johancarlin.com · 14/05/2026

The new memory feature in Gemini is going to need a bit of work

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Johan Carlin @johancarlin.com · 05/04/2026

This prompt combines two common misconceptions - that the model will output better content if told to roleplay a "senior" engineer, and that suppressing reasoning is a good hack for speeding up turns. The model thinks out loud. Telling it to be terse is basically telling it to think less

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Johan Carlin @johancarlin.com · 27/03/2026

Going to see how far I get with codex. I'm on a measly plus plan and it's very unclear how many tokens that gets you - but I haven't run out yet

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Johan Carlin @johancarlin.com · 26/01/2026

Surprised to see OpenAI disable SSL validation here in the chatgpt sandbox. I'm sure it's a manageable risk in their setup but kind of unnecessary to accept it

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Johan Carlin @johancarlin.com · 16/12/2025

Having fun playing architect with Gemini. It one-shotted this diagram of a Grafana/Prometheus/Loki logging/monitoring stack for LLMs deployed to k8s with Nvidia NIM. Pretty inspiring

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Johan Carlin @johancarlin.com · 11/12/2025

Hey team good news chatgpt said my new architecture is totally feasible let's build rocket emoji

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Johan Carlin @johancarlin.com · 08/11/2025

I think this Gemini behaviour is really confusing because at the moment we expect software outputs to be deterministic. We've internalised that there's no point to press retry if it doesn't work the first time, but now suddenly that's actually essential because the tool is intrinsically flaky

Here’s the transcription:

set all the lights in the house to Daylight
100% brightness

Sorry, I cannot control your device settings or
smart home devices.

yes you can

> a Google Home

Set to daylight and 100% brightness.

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Johan Carlin @johancarlin.com · 24/09/2025

Using Gemini to control Google Home works better than the old assistant on a good day, but every 20 requests or so the inherent LLM stochasticity kicks in and it insists it has no idea how to control my lights

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Johan Carlin @johancarlin.com · 30/08/2025

As a developer working in the public sector I can tell you I'm *begging* my bosses to let me use AI tooling unhindered. These takes are really hard to understand

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Johan Carlin @johancarlin.com · 13/08/2025

Regression to the mean again. Here we pick an extreme bin of one variable (value-to-sales) at time x and plot what happens over subsequent time points to a correlated variable (returns). It's everywhere when you learn to recognise it

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Johan Carlin @johancarlin.com · 18/07/2025

Lots of security theater in my UK mobile operator's new auth but this one is funny

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Johan Carlin @johancarlin.com · 15/06/2025

Yeah sure your fridge may not need an app but this bag of (delicious) basmati rice on the other hand

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Johan Carlin @johancarlin.com · 15/04/2025

So close but so far with Gemini on Android at the moment. Next release I guess

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Johan Carlin @johancarlin.com · 22/03/2025

Regression to the mean strikes again

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Johan Carlin @johancarlin.com · 23/02/2025

Premier Inn is the UK's biggest hotel chain but something is wrong with this calendar

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Johan Carlin @johancarlin.com · 26/01/2025

American payment systems are just so funny to an outside observer. Yes of course you pay for the car from the future by posting a slip of paper with your signature on it to the offices of the auto maker

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Johan Carlin @johancarlin.com · 25/01/2025

Some spicy recommendations on the 7-year-old's Disney profile

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