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RBerenguel

Re:The Excommunicated Devs Making Games with AI on Tuesday March 03, 2026 @02:24AM (#47229260)
Big plus for html/css/js, mostly Pixi 8 or around (I also have a couple threejs). Vanilla JS. I did this by hand before, but having the LLM tweak around the code and styling while I handle more gameplay related things makes this doable (otherwise I just would not have enough free time)
Re:A tab hoarder's journey to sanity on Wednesday January 07, 2026 @02:11PM (#46531046)
I wrote a (not published to the store, it's kind of just for me) Chrome extension (together with Gemini, pretty early in the days of it) that attaches an expiration date to tabs. Works reasonably well to cure it (except I keep setting many to 31 days… but eventually a month passes)
Re:GPT-5.2 on Saturday December 20, 2025 @03:15PM (#46339211)
How long ago?
Re:GPT-5.2 on Thursday December 11, 2025 @04:36PM (#46237510)
I would think this is not true
I also wrote a minimal version for me, https://mostlymaths.net/nb/

Only works well on mobile portrait though, I designed it especifically for my phone. Don't use it much though.

I've been writing something similar that keeps evolving, although computable code blocks and markdown have been in there since v1. Runs locally, saves to LocalStorage and is always in a partially broken state because I add more things than those I fix: https://github.com/rberenguel/weave

And a couple recent-ish updates (sadly twitter, because I use it as throw-devlog-there):

- https://x.com/berenguel/status/1837917590804451378?s=46&t=jc...

- https://x.com/berenguel/status/1799770200310726731?s=46&t=jc...

- https://x.com/berenguel/status/1796917242791113118?s=46&t=jc...

Weave: https://github.com/rberenguel/weave

It's hard to explain what it is. Think personal knowledge manager text editor inspired by Acme. The readme and video there are very outdated, I add features faster than I update that (as the only user this is what I get). I post videos of new features on twitter though, as a reminder to myself of where I passed through

Edit and format? I don't remember getting any formatting or editing help from any research journal ever, aside from getting some LaTeX style file.
A web-based "note taking app with weird functionality I want, with a bit of an Acme feel" is the latest one (README severely outdated, but I post screenshots and screen captures of new features in Twitter to leave myself a track record to update it) https://github.com/rberenguel/weave

Somewhat earlier, expiring tabs for Chrome https://github.com/rberenguel/bestBefore

Most of my projects are in one way or another scratching my own itches.

This video constructs a GoL in APL (not one liner). It is quite understandable even if you don’t know APL (I had just started tinkering with APL when I first found it I think): https://m.youtube.com/watch?v=a9xAKttWgP4

In case somebody is curious to see how it might look like.

Re:The quest to decode the Mandelbrot set on Monday January 29, 2024 @04:26AM (#39174400)
I should probably brush it up and just upload it to Arxiv. But then I need ok from my advisor, and maybe she’d rather not (since she’d be a coauthor of that..). I’ll try again, thanks for the encouragement.
Re:The quest to decode the Mandelbrot set on Saturday January 27, 2024 @08:25AM (#39155344)
I did some research on this on the side for my dissertation, but never published it. The fact centers approximate the boundary generalises to almost any point in the plane as a consequence of normality of some sequences, and generalises to most families of complex iteration under very mild conditions. I’ve had a preprint that I never felt like finishing for something like 15 years lying around.
It’s definitely not ergonomic, but very portable. I have it as a backup pointer just in case.
The Wedge Touch Mouse, which has a weird wedge shape and runs out of a single AA battery also has touch sensitive (vertical only IIRC? haven’t used it in a while) scroll as far as I can tell.
Re:IA Writer in Paper on Saturday December 09, 2023 @04:25AM (#38580171)
I guess I could make the on-screen keyboard work with a text area instead of needing an external one, but I never planned on using that, I find “glass keyboards” annoying to use. It would require some serious changes to the system though, since everything is designed for reading input from a keyboard from “stdin”, so to say.

So far has survived fine, and as long as there are no major changes in the browser (long polling and the JS I use have been available for several years from what I have seen in people who investigated its features). It’s a risk I accepted when I wrote it, worst case the docs are in the Pi, and then PiWrite can be used from any web browser on any modern enough device.

Re:IA Writer in Paper on Friday December 08, 2023 @02:53PM (#38573368)
Shilling (or not, it’s open source, who cares). I made this: https://github.com/rberenguel/PiWrite

It is not iA Writer in eink, but I got distant inspiration (I used it a lot back when it was released… a long time ago) and could be closer with effort.

Re:Now I Can Just Print That Video on Monday December 04, 2023 @04:04PM (#38523026)
Thanks, I fatfingered the copy paste on my phone :/
Re:Now I Can Just Print That Video on Monday December 04, 2023 @02:31PM (#38521950)
I kind of wrote something for this a few years ago: https://github.com/rberenguel/glancer [edited a fat-fingered copy-paste]

The use-case is technical videos (like from conferences) I’m interested, but not enough to invest 20-60 minutes.

Haven’t used it in a few months so the yt-dlp commands may need updating.

Re:Boox Palma review: A phone-shaped e-reader on Friday October 13, 2023 @08:14AM (#37869727)
That certainly looks great, and has an excellent form factor too
Re:Boox Palma review: A phone-shaped e-reader on Thursday October 12, 2023 @11:22AM (#37858490)
Not exactly what you want (I want the same) but I wrote this to scratch that itch: https://github.com/rberenguel/PiWrite
Re:PiWrite – Kindle Paperwhite to Write on Sunday October 08, 2023 @04:52PM (#37814297)
Writing latency on the RM is good: for typing is very likely to be well above OK… as long as you don't have to scroll the text/screen. Because page turning latency/refresh speed is quite bad. No "this is shitty bad, gimme my money back" but slow enough that it makes skimming impossible and normal page turning slightly annoying (worsened the larger the PDF). A similar kind of latency can be seen particularly when using the cut/move tool, for example.

To be fair when typing (a few minutes after the time in the video you shared) the latency for refreshing the screen does not seem that bad. But they keyboard looks annoying to use… I way prefer having a full choice of keyboards (aside from the fun of having written the code of course).

Typing latency on my contraption is pretty similar to what can be seen in the video, maybe slightly slower but not by much. Since two weeks ago I have written several drafts of blog posts (while I added some features that were needed, or fixed some annoyances) and it is usable, although I miss adding a "read mode" (scrolling via cursor is slow, and I have not added `:num`, `gg` or `G` yet which makes reading what you have written not great.

Re:PiWrite – Kindle Paperwhite to Write on Sunday September 24, 2023 @06:31PM (#37637807)
The Kindle can’t handle USB networking, so it wouldn’t be a viable option. The private network is only needed if you are not in a WiFi capable area: at home I use it without AP
Re:PiWrite – Kindle Paperwhite to Write on Sunday September 24, 2023 @03:44PM (#37636504)
It’s not as bad as I expected before trying the project. You can try with SolarWriter (which is easier to set up than this weird thing I did) to get an idea. I consider it “mechanical typewriter” level. For me, good enough.
Re:PiWrite – Kindle Paperwhite to Write on Sunday September 24, 2023 @03:43PM (#37636493)
I don’t have the Folio case, but I have a Remarkable 2 and the screen refresh time is not as nice as the Paperwhite by quite a margin. I had actually managed to plug a USB keyboard to the RM2 (can be done, you need to tweak several things and power it) and the experience was quite “meh”. Also on a personal note, I prefer the form factor/size of the Kindle for this. The RM2 always feels flimsy!
Re:PiWrite – Kindle Paperwhite to Write on Sunday September 24, 2023 @03:40PM (#37636472)
I have always eyed similar solutions, but getting root access to the Kindle has been getting more convoluted each time: I always chose to not try to avoid being a few days without reading if I bricked it. This is one of the reasons why I wrote this: should work as long as the Kindle has a decent-ish browser.
I’ve been there, too. I don’t feel like writing much here, but drop me an email if you feel like it (it’s on my profile).
Re:Family Photos vs 256 Kb RAM on Friday June 02, 2023 @11:43AM (#36166681)
I love my “old” Inky Impression, just to add some positivity. Just a few days added some new images and posted pictures on Twitter: https://twitter.com/berenguel/status/1662857260043829250
Re:Databricks acquires serverless Postgres vendor bit.io on Wednesday May 31, 2023 @01:28AM (#36134790)
Back when I was a customer (before Photon was released, also during) they had a very good tuning, in the order of around 2x faster for the workloads we had at the time (very large graph computation and a “simple” filtering)
I’ve found my VP (which I like a lot though) dries up very quickly. I recently got a Lamy Dialog and it behaves way better (and even though it looks bulky it is a joy to use). For more “casual” (throw-in-the-bag) I really dig the plasticky Pelican Twists (they feel extremely comfortable, I have 3 or 4) and a trusty Kaweco Liliput in brass I always carry on my backpack.
Re:Formalizing the H-Principle and Sphere Eversion on Wednesday January 18, 2023 @07:11AM (#34425782)
The co-author of the article linked has a very "fun" book on how to better draw on whiteboards, particularly for topology: https://link.springer.com/book/10.1007/978-0-387-68120-7 His main example in the book is showcasing the sphere eversion.

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