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FediMeteo: A €4 FreeBSD VPS Became a Global Weather Service

https://it-notes.dragas.net/2025/02/26/fedimeteo-how-a-tiny-freebsd-vps-became-a-global-weather-s...
85•birdculture•1h ago•26 comments

Everything as Code: How We Manage Our Company in One Monorepo

https://www.kasava.dev/blog/everything-as-code-monorepo
40•benbeingbin•42m ago•18 comments

Prof. Software Developers Don't Vibe, They Control: AI Agent Coding Use in 2025

https://arxiv.org/abs/2512.14012
19•dpflan•41m ago•8 comments

Toro: Deploy Applications as Unikernels

https://github.com/torokernel/torokernel
91•ignoramous•3h ago•54 comments

Electrolysis can solve one of our biggest contamination problems

https://ethz.ch/en/news-and-events/eth-news/news/2025/11/electrolysis-can-solve-one-of-our-bigges...
68•PaulHoule•2h ago•14 comments

A faster heart for F-Droid. Our new server is here

https://f-droid.org/2025/12/30/a-faster-heart-for-f-droid.html
46•kasabali•2h ago•7 comments

A Vulnerability in Libsodium

https://00f.net/2025/12/30/libsodium-vulnerability/
84•raggi•3h ago•6 comments

Show HN: 22 GB of Hacker News in SQLite

https://hackerbook.dosaygo.com
116•keepamovin•3h ago•43 comments

Loss32: Let's Build a Win32/Linux

https://loss32.org/
109•akka47•1d ago•214 comments

Reverse Engineering a Mysterious UDP Stream in My Hotel (2016)

https://www.gkbrk.com/hotel-music
127•bayesnet•1w ago•14 comments

The British empire's resilient subsea telegraph network

https://subseacables.blogspot.com/2025/12/the-british-empires-resilient-subsea.html
126•giuliomagnifico•7h ago•32 comments

Igniting the GPU: From Kernel Plumbing to 3D Rendering on RISC-V

https://mwilczynski.dev/posts/riscv-gpu-zink/
44•michalwilczynsk•6h ago•5 comments

Approachable Swift Concurrency

https://fuckingapproachableswiftconcurrency.com/en/
128•wrxd•7h ago•50 comments

Times New American: A Tale of Two Fonts

https://hsu.cy/2025/12/times-new-american/
168•firexcy•7h ago•102 comments

Non-Zero-Sum Games

https://nonzerosum.games/
276•8organicbits•9h ago•137 comments

Postgres extension complements pgvector for performance and scale

https://github.com/timescale/pgvectorscale
91•flyaway123•5d ago•19 comments

Zpdf: PDF text extraction in Zig – 5x faster than MuPDF

https://github.com/Lulzx/zpdf
3•lulzx•51m ago•1 comments

Show HN: I remade my website in the Sith Lord Theme and I hope it's fun

https://cookie.engineer/index.html
18•cookiengineer•2h ago•10 comments

Hive (YC S14) Is Hiring a Staff Software Engineer (Data Systems)

https://jobs.ashbyhq.com/hive.co/cb0dc490-0e32-4734-8d91-8b56a31ed497
1•patman_h•6h ago

Go away Python

https://lorentz.app/blog-item.html?id=go-shebang
285•baalimago•11h ago•272 comments

Netflix Open Content

https://opencontent.netflix.com/
525•tosh•10h ago•101 comments

HTTP Strict Transport Security (HSTS)

https://hstspreload.org/
19•arunc•1d ago•5 comments

Confessions to a Data Lake

https://confer.to/blog/2025/12/confessions-to-a-data-lake/
31•kkl•1w ago•9 comments

Stranger Things creator says turn off “garbage” settings

https://screenrant.com/stranger-things-creator-turn-off-settings-premiere/
380•1970-01-01•20h ago•670 comments

Five Years of Tinygrad

https://geohot.github.io//blog/jekyll/update/2025/12/29/five-years-of-tinygrad.html
127•iyaja•1d ago•57 comments

Show HN: Tidy Baby is a SET game but with words

https://tidy.baby
16•brgross•4h ago•6 comments

Show HN: One clean, developer-focused page for every Unicode symbol

https://fontgenerator.design/symbols
144•yarlinghe•5d ago•59 comments

Tesla’s 4680 battery supply chain collapses as partner writes down deal by 99%

https://electrek.co/2025/12/29/tesla-4680-battery-supply-chain-collapses-partner-writes-down-dea/
623•coloneltcb•1d ago•698 comments

The future of software development is software developers

https://codemanship.wordpress.com/2025/11/25/the-future-of-software-development-is-software-devel...
374•cdrnsf•1d ago•469 comments

Concurrent Hash Table Designs

https://bluuewhale.github.io/posts/concurrent-hashmap-designs/
49•signa11•3d ago•5 comments
Open in hackernews

Electrolysis can solve one of our biggest contamination problems

https://ethz.ch/en/news-and-events/eth-news/news/2025/11/electrolysis-can-solve-one-of-our-biggest-contamination-problems.html
68•PaulHoule•2h ago

Comments

chrisweekly•1h ago
This looks very promising! Efficiently dehalogenizing toxins, preserving their carbon "skeletons" to be repurposed for valuable (nontoxic) industrial chemicals, creating NaCl (table salt) as a byproduct... seems full of win to me. Here's hoping...
CheeseFromLidl•1h ago
How does this work on a practical level? Do you scrape the soil to a depth of a foot and submit it to electrolysis or is the soil washed and the sludge then processed? How many grams of halogens does this recover per square acre of contaminated site? Does this sterilise the site?
awakeasleep•1h ago
I think itd be meant for the facility that uses the halogenated compounds in the first place, integrated into their process.
CheeseFromLidl•1h ago

  a process that can be used *on site* to render environmental toxins such as DDT and lindane harmless and convert them into valuable chemicals – a breakthrough for the *remediation of contaminated sites*
coryrc•1h ago
Today we scrape however many meters deep of soil and haul off to a landfill. I assume you'd scrape it up, run it through something to pull out everything bigger than a pebble. Wash the pebbles, the rinse water goes with the soil through the cleaning process.

Certainly what comes out of the machine will not be living.

talkingtab•28m ago
The real practical and immediate help would be ground water contamination. How many bad chemicals now permeate the water supplies around farming communities. Can this be used to treat the drinking water supply?
philipkglass•1h ago
This article doesn't link to the primary research. It's referencing a Spark Award granted this year for work from 2024 and 2021. Here are the relevant articles:

"SCS Foundation News and Announcements 2025"

https://www.chimia.ch/chimia/article/download/2025_885/2025_...

Persistent Organic Pollutants (POPs) are highly recalcitrant and toxic compounds that pose a profound threat to ecosystems across the world. One of the most notorious representatives of this class of chemicals is hexachlorocyclohexane (HCH) – a known human carcinogen – a specific isomer of which was used as the insecticide Lindane.

...

In 2021, the groups of Morandi and Waldvogel disclosed a vicinal dihalide shuttle reaction under electrochemical conditions, with which HCH could be fully dechlorinated. In the present work, instead of transferring chlorine to another molecule, we sought to sequester it as an innocuous inorganic chloride salt, which is preferable for large-scale application.

Here's the free-to-read Accepted Manuscript version of the earlier 2021 publication:

"Merging shuttle reactions and paired electrolysis for reversible vicinal dihalogenations"

https://ethz.ch/content/dam/ethz/special-interest/chab/organ...

CGMthrowaway•1h ago
DDT is still sprayed today, indoors, in Africa and Asia to control for mosquitos, including in India.

https://www.sciencedirect.com/science/article/pii/S254251962...

hosh•1h ago
Dr John Todd has figured out and demonstrated a method to remediate DDT-contaminated water without the use of electrolysis, or other energy inputs. He was able to decontaminate one of the top superfund sites. The method is broadly versatile, and requires even lower tech than electrolysis. His methods can also sequester heavy metals. It involves introducing organisms across all of the kingdoms so that they self-organize on the contaminant.

More narrowly, Paul Stamets has worked a lot on mycroremediation — remediating with fungi.

JumpCrisscross•1h ago
> Dr John Todd

…who is this? This guy [1]?

[1] https://en.wikipedia.org/wiki/John_Todd_(Canadian_biologist)

hosh•20m ago
That is the dude.
CGMthrowaway•47m ago
>Dr John Todd has figured out and demonstrated a method to remediate DDT-contaminated water ... It involves introducing organisms across all of the kingdoms so that they self-organize on the contaminant.

So... he invented the ocean?

hosh•11m ago
Biomimicry, not invention. He reasoned that the DNA is a vast library for transforming molecules from one to another, and therefore, ecosystems are capable of breaking down pollutants.

In practice, there are multiple vats. The first stage has algae growing, which sequesters the heavy metals. The next stages follow other kinds of ecosystems, such as organisms from swamps. He will mix samples from multiple ecosystems that normally don’t mix so that some kind of novel, self-organizing ecosystem can form around the pollutant.

Then it is measuring and monitoring the contaminants. With the superfund site, he was tracking presence of the top ten pollutants on the EPA list. However, he also shows how people can use much simpler, non-industrial tests — using samples from say, uncontaminated lake water nearby and use a microscope to see if the water being treated will kill those microorganisms. This allows for remediation to be executed by people who don’t have access to labs, but still need a way to test their water.

A much simpler version of this that follows the same design principles is capable of local, onsite treatment of ordinary black water.

metalman•43m ago
short, sweet, got the zam. for toxic waste sites (superfund), and land fills this checks all the boxes. Given that many of the older developed areas that have contaminated sites are also building out solar power, and pushing electricity prices into the negative, I believe that this could be set up to run full tilt, when power was cheap, and idle when it is expensive.