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I use ChatGPT primarily but Claude seems to have a much better ux on the web

Alex Sidorenko @alexsidorenko.com · 03/08/2026

ep5 - something finally started to happen 😅 I hope this slowness serves some epic creative purpose for the second part of the season

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Alex Sidorenko @alexsidorenko.com · 01/08/2026

I couldn't find anything with the level of ux quality of 2016 Trello. Ended up using simple checklists in Obsidian, as at least it doesn't get in the way

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Alex Sidorenko @alexsidorenko.com · 27/07/2026

Especially if you already have a lot of context in the session. Switching the model/thinking level results in the KV cache miss, making the model recompute all previous tokens On the API it costs more money, on a sub it drains your usage limits faster earendil.com/posts/prompt...

earendil.com

Prompt Caching In Agents | EARENDIL

How prompt caching shapes the cost, latency, tools, and architecture of coding agents, and what Pi does to keep cache behavior visible.

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Alex Sidorenko @alexsidorenko.com · 27/07/2026

Switching the model or reasoning mid-session can be expensive

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Alex Sidorenko @alexsidorenko.com · 12/07/2026

s03 gives some Dark vibes e2 was a tad slow, though

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Alex Sidorenko @alexsidorenko.com · 09/07/2026

Making a Pi extension that shows a live SVG preview directly in the terminal

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Alex Sidorenko @alexsidorenko.com · 01/07/2026

How to prevent Codex from reading sensitive files

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Alex Sidorenko @alexsidorenko.com · 29/06/2026

How to run local models for coding on Mac (LM studio + Pi)

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Alex Sidorenko @alexsidorenko.com · 15/04/2026

Relevant paper from Anthropic: How AI Impacts Skill Formation (Feb 3, 2026) arxiv.org/pdf/2601.20245

arxiv.org

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Alex Sidorenko @alexsidorenko.com · 15/04/2026

Skill atrophy with coding agents

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Alex Sidorenko @alexsidorenko.com · 13/04/2026

Still no 60fps vids on Bluesky 😭

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Alex Sidorenko @alexsidorenko.com · 13/04/2026

Why red/green tdd is good for agentic coding

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Alex Sidorenko @alexsidorenko.com · 13/12/2025

Looks sleek! Maybe super helpful for education imo

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Alex Sidorenko @alexsidorenko.com · 27/10/2025

P.S. router.refresh does not invalidate cached data (on the server), revalidatePath does

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Alex Sidorenko @alexsidorenko.com · 27/10/2025

revalidatePage/Tag in server action updates data in one round trip, so a good default for mutations router.refresh is for non-mutation cases (refresh data on client event, etc...)

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Alex Sidorenko @alexsidorenko.com · 10/08/2025

On the bright side, it's easier to learn peripheral stuff from first principles without cookie banners or worrying about asking stupid questions Easier to broaden the scope, harder to hyper-specialize

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Alex Sidorenko @alexsidorenko.com · 16/06/2025

The first point is the main one, I think. Comes from folks who work in companies with clear backend/frontend divide. They don't want RSC because for them, it's more hustle for no benefit. So the pushback (at least in part) comes from the existing structures of work we adapted during SPA era

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Alex Sidorenko @alexsidorenko.com · 16/06/2025

Got you. From my observation, most folks who miss SPA behavior from Next mainly want two things: 1. Static output with no node server 2. Instant route navigation

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Alex Sidorenko @alexsidorenko.com · 15/06/2025

But if you only disable SSR/SSG but not RSC (keep rendering RSC to json payload during doc request), wouldn't this still block navigation (so not really SPA)? Or do you mean only keeping RSC for server actions?

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Alex Sidorenko @alexsidorenko.com · 14/06/2025

It could just be about attention allocation. I can listen to someone speaking for 30 minutes while making breakfast. Not possible with written articles

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Alex Sidorenko @alexsidorenko.com · 27/05/2025

Also, I haven't detected that influence in Dune to be honest 😅 At least not in the movies

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Alex Sidorenko @alexsidorenko.com · 27/05/2025

I heard that Frank Herbert was influenced by Alan Watts (taoism/zen buddhism) when writing Dune. Not sure if it was the primary trigger for writing it, though

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Alex Sidorenko @alexsidorenko.com · 11/05/2025

Yep, and RSC makes "invalidate everything" much cheaper. And yet, there are still cases when client-side cache is a must (e.g. dashboard with cards => revalidate one card without revalidating others) It would be great if RSC covered this use case bsky.app/profile/alex...

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Alex Sidorenko @alexsidorenko.com · 10/05/2025

Even then, you may have a dashboard with multiple cards and want to revalidate each card separately without revalidating all the others.

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Alex Sidorenko @alexsidorenko.com · 10/05/2025

Nothing is blown away in terms of client state persisting, but revalidateTag/revalidatePath re-renders entire RSC tree from the root including layouts (and refetches everything in them). Ideally, there should be a way to revalidate the page segment separately (similar to navigation)

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Alex Sidorenko @alexsidorenko.com · 09/05/2025

React started componentization of web dev React Server Components continues it

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Alex Sidorenko @alexsidorenko.com · 09/05/2025

Next is working on some sort of selective revalidation. But yea, even something like "revalidateSegmentPage" could help, as right now it's only revalidatePath/revalidateTag, which both re-render the entire RSC tree from the root, including all layouts

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Alex Sidorenko @alexsidorenko.com · 09/05/2025

Yep, that's the missing bit in existing implementations rn bsky.app/profile/alex...

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Alex Sidorenko @alexsidorenko.com · 09/05/2025

But I feel like it's nuanced, as RSC makes "blowing away your entire page" a viable option in many cases. Anyway, it would be awesome if you could clarify how RSC compares/integrates with existing client-side data fetching libs in your write.

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Alex Sidorenko @alexsidorenko.com · 09/05/2025

One thing that I noticed is that people just habitually default to Tanstack Query for data fetching when using React. And in this case, RSC sorta stays in the way instead of helping. On which Tanner pointed out (rightly so, imo) that you still need selective revalidation from the client.

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Alex Sidorenko @alexsidorenko.com · 08/05/2025

Reddit is being Reddit 😅 Anonymous (no reputational damage) = more unfiltered, honest feedback, but allows arguing while being wrong P.S. "You’re right that such leaves could in principle be HTML-only" Oh, this is very interesting 👀 Is this optimization planned?

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Alex Sidorenko @alexsidorenko.com · 06/05/2025

"Vercel AI SDK - how do I get ai to interpret the tools response?" 👇

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Alex Sidorenko @alexsidorenko.com · 26/04/2025

Is selective revalidation conceptually possible with RSC? Say, I have a dashboard with 4 charts (each is a separate server component), and I want to revalidate only the 2nd one without re-rendering the entire page on the server.

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Alex Sidorenko @alexsidorenko.com · 25/04/2025

What was your previous metaphysics?

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Alex Sidorenko @alexsidorenko.com · 17/02/2025

Anyone lives in Ericeira, Portugal? How do you like it?

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Alex Sidorenko @alexsidorenko.com · 07/11/2024

Caching Prisma queries with dynamicIO in Next.js

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Alex Sidorenko @alexsidorenko.com · 31/10/2024

Composable caching in Next.js with dynamicIO

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