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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
142•theblazehen•2d ago•42 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
668•klaussilveira•14h ago•202 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
949•xnx•19h ago•551 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
122•matheusalmeida•2d ago•33 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
53•videotopia•4d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
229•isitcontent•14h ago•25 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
16•kaonwarb•3d ago•19 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
28•jesperordrup•4h ago•16 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
223•dmpetrov•14h ago•117 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
330•vecti•16h ago•143 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
494•todsacerdoti•22h ago•243 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
381•ostacke•20h ago•95 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
359•aktau•20h ago•181 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
288•eljojo•17h ago•169 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
412•lstoll•20h ago•278 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
19•bikenaga•3d ago•4 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
63•kmm•5d ago•6 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
90•quibono•4d ago•21 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
256•i5heu•17h ago•196 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
32•romes•4d ago•3 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
44•helloplanets•4d ago•42 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
12•speckx•3d ago•5 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
59•gfortaine•12h ago•25 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
33•gmays•9h ago•12 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1066•cdrnsf•23h ago•446 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
150•vmatsiiako•19h ago•67 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
288•surprisetalk•3d ago•43 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
149•SerCe•10h ago•138 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
183•limoce•3d ago•98 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
73•phreda4•13h ago•14 comments
Open in hackernews

Show HN: WeUseElixir - Elixir project directory

https://weuseelixir.com/
213•taddgiles•4mo ago

Comments

taddgiles•4mo ago
WeUseElixir is a curated directory of apps, libraries and companies that use the Elixir programming language.

A few years ago I was introduced to Elixir. It was the first functional programming language I'd ever used. I became a huge fan of the language and the community.

I've now used Elixir in a variety of different projects both professional and personal. It's become my go-to language for building web applications. It is just fun to work with.

I created WeUseElixir as a way to increase awareness of the Elixir language and how it's being used. WeUseElixir provides a place for creators to share their projects and allows others to discover new and interesting projects.

mig4ng•4mo ago
I use it for many side projects, and I am starting to use it for bigger ones too.

Should we submit personal projects and smaller side projects, or is this for fully fledged app only?

Also, should we add know open source applications such as Plausible[1]?

I am always happy to see Elixir and Erlang hit the front page.

[1] - https://github.com/plausible/analytics

freedomben•4mo ago
Just personal opinion, I would get a lot of value out of having open source projects on there like plausible. I'm fact that might be the most useful thing personally
innocentoldguy•4mo ago
There are open source projects on the site, such as Oban and Absinthe. Is that what you’re looking for or did you mean something else?
taddgiles•4mo ago
Yes to all of the above. The goal is to share as much as possible what people are doing with Elixir.
huqedato•4mo ago
Same here, using Elixir only for personal/hobby projects. Sadly, my customers when they hear about Elixir they get scared as hell. The "song" they love includes only JS, Java, C#, or Python.
bglusman•4mo ago
Nice! There’s also this[0] project run by community /elixir-school[1] maintainers [0]https://elixir-companies.com/en [1]https://elixirschool.com/en
ch4s3•4mo ago
How do I get in touch to correct the tech stack on one of these?
taddgiles•4mo ago
Hello! Email me at hello@14hippos.com and I can get that fixed up for you.
taddgiles•4mo ago
A big thank you to everyone for the interest, the suggestions and for the many submissions. Thank you!
kylecazar•4mo ago
Cool -- I've suspected Elixir is used in many more companies than it's "famously" used in. A quick survey on Indeed somewhat confirms that.

Big fan, of both the language and community.

garbthetill•4mo ago
yep, its always funny to come across a company that uses it. For me the latest one was tubi, ive heard truth social also uses it not 100% sure. Sometimes I wonder if they're quiet about elixir praise is because the technology just works with very little to no issues
sarchertech•4mo ago
One of the devs at truth social is fairly infamous in the elixir community. I have several friends who worked with him at other places.
typpilol•4mo ago
Infamous for what
cess11•4mo ago
Probably being an insufferable prick, if this is to be believed: https://www.reddit.com/r/elixir/comments/1lj907v/comment/mzj...

In my experience the Elixir community is inviting and inclusive, promoting pretty much the opposite ethics of what "Truth Social" stands for.

arrowsmith•4mo ago
Who?
input_sh•4mo ago
Truth Social is just Mastodon on the backend and an alternative Twitter-like frontend called Soapbox. Soapbox is indeed Elixir-based and open source.

Soapbox has a very weird history of first being forked from Gab for a feminist platform called Spinster(.xyz), then it got acqui-hired by Truth Social, then many of them left Truth Social to be independent. Soapbox(.pub) today is mostly abandonware, the team switched focus to building products on top of Nostr.

The amount of times it switched sides in its 5 or so years of existence has been truly fascinating and difficult to keep track of.

sorentwo•4mo ago
This is absolutely true.

I can confirm, from firsthand knowledge, that Elixir is used at dozens of Fortune 500 companies in the US.

mmaia•4mo ago
A suggestion for addition:

> Plausible Analytics is a standard Elixir/Phoenix application backed by a PostgreSQL database for general data and a Clickhouse database for stats.

https://github.com/plausible/analytics

taddgiles•4mo ago
Will do, thx for the idea!
pixelmonkey•4mo ago
I just did a small programming side project with a friend in Elixir and I was pretty impressed with the language, especially how it approaches functional programming, concurrency, parallelism, and “programming in the large” (e.g. networked systems and clusters).

I still think there’d be some sort of mental hurdle for me to consider using it for a project of the kinds described on WeUseElixir (vs my go-to language of Python).

But simply toying around with a concrete example of a concrete “word count” program scaled up to multi-core and multi-node made me “get” Elixir a lot more.

Also, I highly recommend this podcast interview with the author of “Elixir in Action.” He does a really nice job describing what makes Erlang and Elixir unique vs other commonly used backend programming languages.

https://se-radio.net/2018/08/se-radio-336-sasa-juric-on-elix...

itissid•4mo ago
Have you tried the codecrafters exercises, you can build a shell and a redis cache in it. It's not even that hard when you have a nice planned laid out like they do
jamauro•4mo ago
You can add:

ElectricSQL Supabase Felt

There’s another list here: https://elixir-companies.com

taddgiles•4mo ago
Thx for the tips!
recroad•4mo ago
Elixir is fantastic. Liveview is a huge productivity multiplier - lot of boilerplate disappears.
andrewflnr•4mo ago
LiveView is fun, but my problem is that in practice I often want local-first state. Is there a good way to do that with LiveView, maybe a clean way to write the little javascript snippets so they work with local state?
ipnon•4mo ago
LiveView already has local first state. The magic in LiveView is how it uses WebSocket connections to the client to keep the client state in sync with the server state. This is why you just need to update the socket and the rest just works.

If you want to have some state that only exists on the server, then you simply don’t assign that data to the socket.

andrewflnr•4mo ago
I guess I should have said "offline-first".
arcanemachiner•4mo ago
Alpine.js is a good tool for this, but it can have issues when LV updates the DOM.
mau013•4mo ago
Checkout Hologram. It aims at client based state (but it’s all Elixir as it transpiles the Hologram pieces to JS).
SJMG•4mo ago
LiveSvelte or LiveVue have some impressive demos. I've never used them though.
jamauro•4mo ago
You can take a look at JS commands and hooks. Ultimately I came to the determination that while LiveView is cool, I think I want the opposite. I’m hoping Hologram will be the answer.
didip•4mo ago
Why not just make it a yaml document in a git repo instead of making users register?
taddgiles•4mo ago
That's worth considering. Avoiding the user registration would certainly be nice.
fbn79•4mo ago
I never used Erlang, and I'm a functional programming fan. But languages based on heavy VM that abstract OS away always make me doubt that's the right direction.
andrewflnr•4mo ago
That's not a crazy instinct, and maybe if OSs were better you would even be right, but there's not really another way to get a skrillion communicating processes that can all crash/fail independently. Without a dedicated VM, all the other approaches are either less safe or too inefficient.

I consider BEAM an indication of a direction that OSs could and maybe should move. It's even possible to run BEAM on bare metal, (almost?) entirely in place of the normal OS.

linkdd•4mo ago
> It's even possible to run BEAM on bare metal, (almost?) entirely in place of the normal OS.

How? With a unikernel?

signa11•4mo ago
i would think so, no other option afaik.
toast0•4mo ago
I've built a hobby OS around BEAM... BEAM doesn't require a whole lot from the OS, I built a minimal kernel that runs a single process, which you could consider a unikernel or at least very close. I had originally wanted BEAM in ring 0, but I had a lot of trouble getting started. This way, I can just use a pre-compiled BEAM for FreeBSD and don't have to fight with weird compilation options. Anyway, with x86-32 at least, I can give my Ring 3 process access to all the ioports and let it request a mmap of any address, so the only drivers I need in the kernel are IRQ controllers, timers, and pre-beam console. Once beam is up, console i/o and networking is managed from erlang code (with a couple nifs)
thomasfortes•4mo ago
Using GRiSP Metal, not exactly without an OS, but using a real time OS designed for embedded devices.

https://www.grisp.org/software

andrewflnr•4mo ago
It's been a while, but I believe so. I think I'm remembering the "Erlang on Xen" project, which seems to be defunct now.
cess11•4mo ago
What makes you think the BEAM VM is "heavy"?

It's almost like an OS in itself and initially designed to be like a more capable and robust OS on top of rather constrained computers. In my experience it's trivial to shell or port out to the environment when I want to, and I also see people that I don't think of as highly skilled low-level programmers do things with NIF:s so that can't be exceptionally demanding either.

conradfr•4mo ago
Yes it's definitely not heavy like a Java program that will cannibalize your RAM.

It's actually quite lean.

It will use all your cores without you asking (which is fantastic right?) but it's configurable AFAIK.

cess11•4mo ago
It will also use preemptive multitasking, so busy processes won't pin CPU cores at the expense of other tasks.
desireco42•4mo ago
I have a digital studio that needs to find good companies to pitch them my services... just searching LI is not very helpful, this is way better.

Also, as a place that uses Elixir... I can find all the new tools and cool projects without watching endless videos on Youtubes... As I want to spend most of my time working on projects, not trying to catch up.

I think this is excellent, thank you for making it in this format.

taddgiles•4mo ago
Thx! Glad you're finding it useful!
shomp•4mo ago
Right now I'm using Elixir to build an open-source nonprofit tech company, I will have to remember to add it to this project directory once we launch. Cool idea, keep up the good work. As a nonprofit tech company keeping costs low matters a lot, and Erlang/Elixir on BEAM makes it very easy to have tons of concurrent users with minimal overhead. Server start time is very fast. Coming from other functional languages like Clojure helps, but is not a requirement for getting started quickly.
_kidlike•4mo ago
IIRC, Kagi is written in Elixir
flexagoon•4mo ago
No, it's written in Crystal

https://crystal-lang.org/

_kidlike•4mo ago
ah, right...
k__•4mo ago
Half-OT: When would you use Elixir, when Erlang, and when Gleam?

I know relatively new projects that started with Erlang, despite Elixir being available and stable for years now.

cess11•4mo ago
Erlang is leaner and more elegant than Elixir. If you don't need the bells and whistles of Phoenix and Ash and so on, and your team is senior enough to just go with the syntax, then Erlang is a good option. Especially if you're doing sophisticated network plumbing and distributed processing stuff but not much direct interfacing with non-technical users.

Gleam takes inspiration from Elm, so if that's your thing and something you'd consider using, probably go with that rather than Phoenix. Again, if your team can handle it.

Personally I build web interfaces and so on as well as plumbing stuff and I'm also very fond of the one language through the entire stack experience it allows, so I mostly stick to Elixir. Prototyping in REPL, moving to scripts, and then into proper modules in the more stable projects. It also has a very nice code generation 'story' that allows a lot of nice shortcuts and sophisticated tools.

mmcclure•4mo ago
> Gleam takes inspiration from Elm, so if that's your thing and something you'd consider using, probably go with that rather than Phoenix. Again, if your team can handle it.

I think you meant Elixir there, not Phoenix?

cess11•4mo ago
Elm targets web browser languages, so I considered Phoenix to be a better point of comparison than Elixir broadly.
mmcclure•4mo ago
I’m not sure I’m following. Gleam is inspired by Elm in a lot of ways, and the major draw over Elixir would be the Elm-inspired type system, but Gleam is still a language not a web framework (which Elm is not either, since it only targets clients afaik).
dbsimmons64•4mo ago
Small nitpick - I'd say the main Gleam web framework, Lustre, takes inspiration from Elm. Gleam itself takes inspiration from a number of sources, Rust, Erlang, the ML family of languages. I think Gleam is a lovely little language (though I'm also a huge fan of Elixir).
paradox460•4mo ago
Is never say erlang is more elegant than elixir, simply due to things like ending functions with commas vs periods (yes they have actual meaning, no it's not really something worth worrying about), lack of pipes, and lack of things like with

They both compile down to the same bytecode, and both have fairly optimum compilers

As for gleam, it's a fun ml dialect, worth using if that's your thing. Same goes with LFE, if you like lisp

tommypalm•4mo ago
This is a great idea. I'd like to make a few suggestions though:

- Allow filtering by companies and libraries. I'm interested in both, but I wanted to look at just the list of companies to see if there were any I didn't recognise.

- Adding a company seems to be just adding _your_ app. It would be good to suggest companies to be listed as long as you have some evidence that they use Elixir. I know that Apple has Elixir in their Environmental team, but I'm not sure how I would go about adding that.

- Move the category filtering to the directory page. It would be more interesting to see the whole list at once and filter by category.

taddgiles•4mo ago
Great suggestions! Thank you for taking to the time to share those.
nenenejej•4mo ago
Oh Elixir is still niche then :)

(For any sufficiently popular language it would not be possible or interesting to curate such a list)