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Grapevine cellulose makes stronger plastic alternative, biodegrades in 17 days

https://www.sdstate.edu/news/2025/08/can-grapevines-help-slow-plastic-waste-problem
67•westurner•1h ago•43 comments

Titania Programming Language

https://github.com/gingerBill/titania
25•MaximilianEmel•1h ago•1 comments

OCSP Service Has Reached End of Life

https://letsencrypt.org/2025/08/06/ocsp-service-has-reached-end-of-life
97•pfexec•4h ago•18 comments

Website is hosted on a disposable vape

http://ewaste.fka.wtf/
49•BogdanTheGeek•1h ago•14 comments

Writing an operating system kernel from scratch

https://popovicu.com/posts/writing-an-operating-system-kernel-from-scratch/
224•Bogdanp•8h ago•47 comments

Repetitive negative thinking associated with cognitive decline in older adults

https://bmcpsychiatry.biomedcentral.com/articles/10.1186/s12888-025-06815-2
286•redbell•12h ago•125 comments

Trigger Crossbar

https://serd.es/2025/09/14/Trigger-crossbar.html
12•zdw•1h ago•1 comments

Why We Spiral

https://behavioralscientist.org/why-we-spiral/
201•gmays•9h ago•67 comments

Cannabis use associated with quadrupled risk of developing type 2 diabetes

https://medicalxpress.com/news/2025-09-cannabis-quadrupled-diabetes-million-adults.html
43•geox•1h ago•24 comments

Models of European metro stations

http://stations.albertguillaumes.cat/
664•tcumulus•16h ago•130 comments

Irrlicht Engine – a cross-platform realtime 3D engine

https://irrlicht.sourceforge.io/?page_id=45
14•smartmic•3d ago•4 comments

You’re a slow thinker. Now what?

https://chillphysicsenjoyer.substack.com/p/youre-a-slow-thinker-now-what
223•sebg•4d ago•99 comments

La-Proteina

https://github.com/NVIDIA-Digital-Bio/la-proteina
14•birriel•3d ago•0 comments

Nicu's test website made with SVG (2007)

https://svg.nicubunu.ro/
134•caminanteblanco•8h ago•74 comments

Betty Crocker broke recipes by shrinking boxes

https://www.cubbyathome.com/boxed-cake-mix-sizes-have-shrunk-80045058
71•Avshalom•1h ago•79 comments

ChatControl update: blocking minority held but Denmark is moving forward anyway

https://disobey.net/@yawnbox/115203365485529363
427•nickslaughter02•4h ago•301 comments

Introduction to GrapheneOS

https://dataswamp.org/~solene/2025-01-12-intro-to-grapheneos.html
120•renehsz•4d ago•118 comments

Implementing namespaces and coding standards in WordPress plugin development

https://developer.wordpress.org/news/2025/09/implementing-namespaces-and-coding-standards-in-word...
20•taubek•2d ago•2 comments

Turn MEP prompts into AutoCAD drawings in minutes

https://www.automep.app/
3•vannventures•2d ago•0 comments

Read to forget

https://mo42.bearblog.dev/read-to-forget/
120•diymaker•10h ago•35 comments

Observable Notebooks Data Loaders

https://observablehq.com/notebook-kit/data-loaders
64•mbostock•4d ago•15 comments

Geedge and MESA leak: Analyzing the great firewall’s largest document leak

https://gfw.report/blog/geedge_and_mesa_leak/en/
385•yourapostasy•1d ago•113 comments

Fukushima insects tested for cognition

https://news.cnrs.fr/articles/fukushima-insects-tested-for-cognition
104•nis0s•13h ago•59 comments

Patela: A basement full of amnesic servers

https://osservatorionessuno.org/blog/2025/05/patela-a-basement-full-of-amnesic-servers/
20•akyuu•3d ago•0 comments

SpikingBrain 7B – More efficient than classic LLMs

https://github.com/BICLab/SpikingBrain-7B
137•somethingsome•18h ago•38 comments

A single, 'naked' black hole confounds theories of the young cosmos

https://www.quantamagazine.org/a-single-naked-black-hole-rewrites-the-history-of-the-universe-202...
180•pykello•19h ago•78 comments

My thoughts on renting versus buying

https://milesbarr.me/posts/my-thoughts-on-renting-versus-buying/
77•milesbarr•3h ago•169 comments

Bank of Thailand freezes 3M accounts, sets daily transfer limits to curb fraud

https://www.thaienquirer.com/57752/bot-freezes-3-million-accounts-sets-daily-transfer-limits-of-5...
202•walterbell•8h ago•163 comments

Show HN: A store that generates products from anything you type in search

https://anycrap.shop/
1034•kafked•1d ago•304 comments

The PC was never a true 'IBMer'

https://thechipletter.substack.com/p/the-pc-was-never-a-true-ibmer
64•klelatti•14h ago•67 comments
Open in hackernews

Show HN: DriftDB – An experimental append-only database with time-travel queries

https://github.com/DavidLiedle/DriftDB
23•DavidCanHelp•4h ago

Comments

twosdai•2h ago
Really interesting! I used influxdb for a while. I see one of the core features is to have AS OF <some date time> be used for historical reference.

Is this similar to running an append only data structure in a normal tsdb, and then querying by date time and taking the most recent value in that data set? Or is it different.

refset•2h ago
Looks like DriftDB is focused on the 'system time' AS OF dimension, a.k.a. rollback querying. AsOf joins are more about doing analysis over user-defined domain timestamps (/ 'valid time'). Combining both concepts gets you a bitemporal database.
withinboredom•2h ago
Nice! I built one of these at a previous company for AI training. It’s nice to see an open source version. Did you look into any of the Temporal SQL papers by chance? There’s some nice syntax when you want to join across time.
refset•2h ago
The SQL:2011 syntax puts the temporal filters directly after base table reference (and before the table alias) [0]

i.e. it would be `SELECT * FROM orders FOR SYSTEM_TIME AS OF "@seq:1000" WHERE customer_id="cust1"` rather than `SELECT * FROM orders WHERE customer_id="cust1" AS OF "@seq:1000"` (the latter being an example from the DriftDB readme)

[0] https://docs.xtdb.com/reference/main/sql/queries.html#_tempo...

withinboredom•1h ago
Yes, but that’s just time traveling, IIRC. With actual time travel queries you can see what changed between T1 and T2, like “show me all users that changed their email address last month” or “of the products that changed prices, how much did they change by” etc.

You can build all of that on top of simple time travel, but there was a lot of research on how to bake it into the SQL language. IIRC, a lot of it was proposed for the SQL standard but it was too niche or something. It’s been over half a decade since I was in that space.

wrl•2h ago
Yet more vibe-coded spam. For context, this is the same author who just got flagged off the front page for an LLM-written book about Lisp.
DavidCanHelp•1h ago
More context: haters are saying LLM generated content is bad. As a Senior Full Stack Developer with over 26 years of pro experience, I'm having the time of my life with these new AI powers and the doors and discussions they open. People are upvoting. I'm personally not getting anything from this open source sharing. You're the one calling spam. When you pay 200 a month to max your claude code output and really hunker down, think twice before you share its work. Not everyone understands.
OutOfHere•1h ago
It is absurd to pay $200 a month for it when GitHub Copilot has agentic development basically for free for open source developers, including GPT/Claude/Gemini models. If you want to waste your own money, fine, but don't expect others to waste a single dollar of their money when decent options are available at no cost.

Especially Claude is well known for wasting output tokens, for maximizing output token use when fewer tokens would do just fine, although other models too have picked up this disease as of late.

Yes, better models could produce better output, especially for a large project, but in my experience, the quality of the output depends 10x more on the clarity and refinement of the input. In the real world, the bulk of engineering is incremental, not one-shot.

Also, when I see a large repo with just three commits made all at once, it tells me that the vibe-coded output hasn't really been reviewed or refined over time, that it has not withstood the test of time at all, it hasn't received the love and attention it needs to make it mature, and so it cannot be trusted in this stage of its development.

tonyhart7•1h ago
wait what??? github copilot is free??? is that only free trial?
OutOfHere•1h ago
Its Pro plan is not free for everyone, but it is free for verified students, teachers, and maintainers of popular established open source projects. See https://github.com/features/copilot/plans . I clearly noted in my parent comment the constraint of open source developers. It's not a trial. If you get approved, you get re-evaluated each month.
compootr•1h ago
> LLM-written book about Lisp.

I don't really care if you're an astronaut, time traveler, or a 15 year old. AI slop prompted by anyone is slop, and I'm a human with limited time which I'd rather not waste on slop

brothrock•1h ago
how is this spam? it’s posted the same way as any HN post and it’s not soliciting anything.
appreciatorBus•49m ago
He’s been on a spree, “writing” and posting a dozen books or other projects in the last 2 days.
erichocean•2h ago
XTDB can also do this, open source, free license.
OutOfHere•1h ago
Link: https://github.com/xtdb/xtdb
shikhar•1h ago
Very cool! Maybe you'll consider turning it distributed by using s2.dev for the append-only event logs :)

Someone tried this with XTDB, https://github.com/chucklehead-dev/s2-log

_false•1h ago
I'm a fan of event sourcing architecture [1]. This looks like a good backend for it.

[1]: https://martinfowler.com/eaaDev/EventSourcing.html

mentalgear•1h ago
Isn't this the same as CRDT libs like automerge are doing ?
packetlost•1h ago
No, event-sourcing is a subset of an implementation detail of some (most, maybe all?) CRDTs. An event-sourcing based system doesn't even need to be distributed, but often is.