iiinova — where your digital self keeps evolving

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shri @shrikhalpada.dev · 27/08/2026

My latest interactive explainer all about the technology behind record players is done! perthirtysix.com/how-the-heck...

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Yulei @yulei-chen.bsky.social · 30/08/2026

motivated to learn Lean in the next semester. KIT has a lecture for it!!

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Yulei @yulei-chen.bsky.social · 10/08/2026

self-discipline is best learned the hard way

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Momo @heyheymomo.bsky.social · 07/08/2026

Hello id like to spend all at once please

4 panel comic.

Panel 1: A pink blob character in suit tells Forg “you did a good business”

Panel 2: the pink blob in suit hands forg a dollar bill. He says “here is your pay”

Panel 3: forg holds the dollar bill. The man in suit walks off the frame. He reminds forg “don’t spend it all at once”

Panel 4: we see now that forg didn’t really listen to his advice. He stands in front of a building labeled “things you don’t need store”, dollar bill still in hand ready to be spent

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dan @danabra.mov · 17/07/2026

ugh web is so complicated. that certificate authority looks quite centralized to me. and that CDN might end up expensive to run at scale. and do we really need another standard? just use email

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v @avi.im · 17/04/2026

Here is an insane piece of lore inside SQLite's source code I am researching VACUUM and I was studying their code. In VACUUM, SQLite creates a temp file prefixed with `etilqs_` Here is why:

** 2006-10-31: The default prefix used to be "sqlite_". But then
** Mcafee started using SQLite in their anti-virus product and it
** started putting files with the "sqlite" name in the c:/temp folder.
** This annoyed many windows users. Those users would then do a
** Google search for "sqlite", find the telephone numbers of the
** developers and call to wake them up at night and complain.
** For this reason, the default name prefix is changed to be "sqlite"
** spelled backwards. So the temp files are still identified, but
** anybody smart enough to figure out the code is also likely smart
** enough to know that calling the developer will not help get rid
** of the file.
*/
#ifndef SQLITE_TEMP_FILE_PREFIX
# define SQLITE_TEMP_FILE_PREFIX "etilqs_"
#endif

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dan @danabra.mov · 13/04/2026

i was annoyed that this isn't explained how i want in the docs so i wrote my own mini-guide to publishing lexicons:

underreacted.leaflet.pub

atproto made simple: publishing lexicons

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dan @danabra.mov · 24/03/2026

this is just to say that the most valuable thing it needs to find bugs is information over time, especially if you're dealing with some mutable system. with the right log granularity and a high level idea of what algorithm should be doing, it'll find it

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npmx @npmx.dev · 13/02/2026

what we're building will take us ten years or more, we can't sprint a healthier online future

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dan @danabra.mov · 02/02/2026

to explain more about the burnout it's because i can't both macromanage and micromanage. so if i let claude do most of the work, i can't make targeted small changes. since too many small wrong things have crept in already that i'm not familiar with and if it's stuck, i'm stuck with uncanny system

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Sacha Greif @sachagreif.com · 03/02/2026

It took a while, but the State of JS 2025 survey results are now live! 2025.stateofjs.com/en-US Thanks to @danielroe.dev for contributing the conclusion.

2025.stateofjs.com

State of JavaScript 2025

The 2025 edition of the annual survey about the latest trends in the JavaScript ecosystem.

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daniel r(ooooooh) 👻 @danielroe.dev · 31/01/2026

so this is a thing now

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dan @danabra.mov · 12/01/2026

ok this is amazing i've made a claude skill that uses @bobbby.online's deciduous to generate a design evolution tree from a project's commit history. this tree is generated by Claude using the displayed prompt (and my skill). the graph ~matches how i remember it react-deciduous-example.pages.dev

a long-ass design evolution tree with nodes for individual decisions to do, choices, and consequences

# Task: Build a Decision Graph for Suspense Fallbacks

Create a deciduous decision graph about how React decides when, whether, and for how long to show the fallback in Suspense.

## Scope

Look at decisions related to fallback behavior.

## Commit Range

Search commits in `./react/packages/react-reconciler` between **May 2018 and August 2020**.

Use: `git -C ./react log --oneline --after="2018-05-01" --before="2020-09-01" -- packages/react-reconciler/`

## Source Material

Use ONLY information from commits in the specified range.

**CRITICAL: Do not use your prior knowledge about React. Every node must be grounded in something you find in these commits.**

## Output

Use the `/decision-graph` skill to build the graph.

When complete, export with: `deciduous graph > graph.json`

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dan @danabra.mov · 17/12/2025

the story here is that bluesky goes out of its way to implement a common feature in a privacy preserving way and double opt-in, but they fail to summarize it, while their audience which is always loudly screaming in comments again fails to actually read the link. self-inflicted but still annoying

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Yulei @yulei-chen.bsky.social · 07/12/2025

@handles.club oooooohhh i love my new handle!!! thank you!

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Yulei @yulei-chen.bsky.social · 01/12/2025

it's hard not to support after reading

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dan @danabra.mov · 27/11/2025

internethandle.org

Internet Handle

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Rob Palmer @robpalmer.bsky.social · 12/11/2025

Node excitement 😉 Congrats to @marcoippolito.dev on making it official: type-stripping in Node 25 is now declared to be stable 🎉 You can run: node index.ts The capabilities have not changed since Node 24. This is purely a maturity indicator.

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Yulei @yulei-chen.bsky.social · 11/11/2025

can’t believe the publication name I picked by vibe on Leaflet ended up being exactly the same as Dan’s

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dan @danabra.mov · 30/07/2025

⚛️📝 New on Overreacted: The Math Is Haunted

overreacted.io

The Math Is Haunted — overreacted

A taste of Lean.

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Nintendo .DS_Store @slim.bsky.social · 24/06/2025

An underrated strategy, or so I keep telling myself, is to buy a textbook and never read it but just go about your life until one day you somehow know all the information contained therein and then you can read the textbook as a victory lap (also works for saved PDFs/bookmarks)

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dan @danabra.mov · 24/06/2025

what is the main reason that gradient descent (at least the vanilla version) uses a proportional step to the gradient value? i understand why it needs to use the sign (for direction) but why is being proportional a good idea?

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dan @danabra.mov · 16/06/2025

watching this vid now. what really strikes me is that types are kind of important (much discussion about floats vs ints, or about making sure division makes sense and you don’t squash things or confuse rows with columns). can somebody explain why is using Python for this a good idea

youtube.com

The spelled-out intro to language modeling: building makemore

YouTube video by Andrej Karpathy

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dan @danabra.mov · 15/06/2025

it also reminds me how much i hate python (for totally irrational reasons) but it is what it is

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Yulei @yulei-chen.bsky.social · 15/05/2025

- "Then how to deal with the logic and interaction between data structures?" - "Algorithms!!???", - "Jesus, why I realized this after almost 8 years from the first time I learned data structures and algorithms" See, this is another example of THINK INSIDE.

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Yulei @yulei-chen.bsky.social · 15/05/2025

- "Why I can't implement it?", - "Is there any certain way to think about it?", - "How can I think in the way computers think when facing a problem?", - "What's the input of a problem, and how to present the input?", - "Ahh! Data structures are the understandable data source?",

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Yulei @yulei-chen.bsky.social · 15/05/2025

When I learn some stuff in computer science, e.g. lexers, I always have this kind of feeling that it's easy to build it in my mind but I don't know where to start when I'm about to implement it. I asked myself a series of questions,

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Yulei @yulei-chen.bsky.social · 04/05/2025

It's high time to reduce screen time and practice digital minimalism now. I do the following things: - Make my phone dumb - Buy a lovely notebook - Keep the laptop in the bag in class

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Yulei @yulei-chen.bsky.social · 04/05/2025

Another thing I realized after I moved to Germany is that I can live without phone, because digital payment is not a must and paper menu is still common.

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Yulei @yulei-chen.bsky.social · 04/05/2025

For a long period of time, I was used to buying stuff online. But after moving to Germany, I sort of get used to buying stuff offline. Online shopping is obviously more convenient, but offline shopping makes me feel ALIVE.

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Yulei @yulei-chen.bsky.social · 26/04/2025

"Life is layers, fluid, unfixed, fragments. I never could write a story with a beginning, a middle and an end in the usual way because it felt untrue to me. That is why I write as I do and how I write as I do. It isn’t really an ethos; it’s me."

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Yulei @yulei-chen.bsky.social · 26/04/2025

One day it came to me that I could directly read the third chapter! I can even skip, jump, repeat and go back, as long as I can connect the relationship between knowledge. Jeanette Winterson said in her book, Why Be Happy When You Could Be Normal, that

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Yulei @yulei-chen.bsky.social · 26/04/2025

I used to learn all the things in a linear way. “You must read the first 2 chapters until you start the third chapter”, I always said to myself. However, it turned out I always gave it up in the second chapter, because my original curiosity can’t support me to finish the first 2 chapters.

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Yulei @yulei-chen.bsky.social · 24/04/2025

Today, while I was reading Neural Networks and Deep Learning by Michael Nielsen (neuralnetworksanddeeplearning.com/chap1.html), I felt another enlightening and charming wording as mental model is neural networks "intuition" which just suddenly erased all the cloud in front of me.

neuralnetworksanddeeplearning.com

Neural networks and deep learning

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Yulei @yulei-chen.bsky.social · 24/04/2025

With her words and my understanding, Python’s mental model is pretty similar to JavaScript’s. In Python world, there’re immutable and mutable values and we can use wires/labels to connect them with variables, and the counterparts in JavaScript are respectively primitive and object.

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Yulei @yulei-chen.bsky.social · 24/04/2025

I'm learning Python. The first thing I want to learn is to build the mental model. Naomi Ceder gives me the inspiration from her blog Notes on Teaching Python — Mental Models (www.naomiceder.tech/posts/mental...). (We’re standing one the shoulder of giants and I really appreciate it.)

naomiceder.tech

Notes on Teaching Python – Mental Models

Notes on Teaching Python – Mental Models I admit it – I’m just an old, cranky teacher. As much I love seeing so many people all around me teaching Python, as much as I love the notion of spreading the

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Yulei @yulei-chen.bsky.social · 22/04/2025

Mental model is not about how something is implemented under the hood. It’s all about "thinking inside", which is why I didn’t say “people with reference model”.

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Yulei @yulei-chen.bsky.social · 22/04/2025

For example, how do you understand variable? Consider the following mindless code: const a = { one: 1 } const b = a a.one = 2 console.log(b) People with container/bucket model may say b is { one: 1 } , but people with wire/label model can give { one: 2 } without any hesitation.

a.one

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Yulei @yulei-chen.bsky.social · 22/04/2025

I worked as a JavaScript developer for 3 years. However, I didn’t know what a mental model of JavaScript meant during the first 2 years until I read Dan Abramov’s book Just JavaScript, where I realized how important it is to build a correct mental model.

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Yulei @yulei-chen.bsky.social · 21/04/2025

I will not use any LLM to help me correct my grammar mistakes or polish my tiny article. This experiment is all about done or failed, instead of being correct or perfect. Just do it.

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Yulei @yulei-chen.bsky.social · 21/04/2025

Just as the name is, this is an experiment instead of a habit or a goal, in which I allow myself dislike it and never do it again after 3 weeks. This is a TINY experiment, which means I take not much time to finish it.

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