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AI readability score for your documentation

https://docsalot.dev/tools/docsagent-score
1•fazkan•6m ago•0 comments

NASA Study: Non-Biologic Processes Don't Explain Mars Organics

https://science.nasa.gov/blogs/science-news/2026/02/06/nasa-study-non-biologic-processes-dont-ful...
1•bediger4000•9m ago•2 comments

I inhaled traffic fumes to find out where air pollution goes in my body

https://www.bbc.com/news/articles/c74w48d8epgo
1•dabinat•10m ago•0 comments

X said it would give $1M to a user who had previously shared racist posts

https://www.nbcnews.com/tech/internet/x-pays-1-million-prize-creator-history-racist-posts-rcna257768
2•doener•13m ago•1 comments

155M US land parcel boundaries

https://www.kaggle.com/datasets/landrecordsus/us-parcel-layer
2•tjwebbnorfolk•17m ago•0 comments

Private Inference

https://confer.to/blog/2026/01/private-inference/
2•jbegley•20m ago•1 comments

Font Rendering from First Principles

https://mccloskeybr.com/articles/font_rendering.html
1•krapp•23m ago•0 comments

Show HN: Seedance 2.0 AI video generator for creators and ecommerce

https://seedance-2.net
1•dallen97•27m ago•0 comments

Wally: A fun, reliable voice assistant in the shape of a penguin

https://github.com/JLW-7/Wally
2•PaulHoule•29m ago•0 comments

Rewriting Pycparser with the Help of an LLM

https://eli.thegreenplace.net/2026/rewriting-pycparser-with-the-help-of-an-llm/
2•y1n0•30m ago•0 comments

Lobsters Vibecoding Challenge

https://gist.github.com/MostAwesomeDude/bb8cbfd005a33f5dd262d1f20a63a693
1•tolerance•30m ago•0 comments

E-Commerce vs. Social Commerce

https://moondala.one/
1•HamoodBahzar•31m ago•1 comments

Avoiding Modern C++ – Anton Mikhailov [video]

https://www.youtube.com/watch?v=ShSGHb65f3M
2•linkdd•32m ago•0 comments

Show HN: AegisMind–AI system with 12 brain regions modeled on human neuroscience

https://www.aegismind.app
2•aegismind_app•36m ago•1 comments

Zig – Package Management Workflow Enhancements

https://ziglang.org/devlog/2026/#2026-02-06
1•Retro_Dev•38m ago•0 comments

AI-powered text correction for macOS

https://taipo.app/
1•neuling•42m ago•1 comments

AppSecMaster – Learn Application Security with hands on challenges

https://www.appsecmaster.net/en
1•aqeisi•43m ago•1 comments

Fibonacci Number Certificates

https://www.johndcook.com/blog/2026/02/05/fibonacci-certificate/
2•y1n0•44m ago•0 comments

AI Overviews are killing the web search, and there's nothing we can do about it

https://www.neowin.net/editorials/ai-overviews-are-killing-the-web-search-and-theres-nothing-we-c...
4•bundie•49m ago•1 comments

City skylines need an upgrade in the face of climate stress

https://theconversation.com/city-skylines-need-an-upgrade-in-the-face-of-climate-stress-267763
3•gnabgib•50m ago•0 comments

1979: The Model World of Robert Symes [video]

https://www.youtube.com/watch?v=HmDxmxhrGDc
1•xqcgrek2•54m ago•0 comments

Satellites Have a Lot of Room

https://www.johndcook.com/blog/2026/02/02/satellites-have-a-lot-of-room/
3•y1n0•55m ago•0 comments

1980s Farm Crisis

https://en.wikipedia.org/wiki/1980s_farm_crisis
4•calebhwin•55m ago•1 comments

Show HN: FSID - Identifier for files and directories (like ISBN for Books)

https://github.com/skorotkiewicz/fsid
1•modinfo•1h ago•0 comments

Show HN: Holy Grail: Open-Source Autonomous Development Agent

https://github.com/dakotalock/holygrailopensource
1•Moriarty2026•1h ago•1 comments

Show HN: Minecraft Creeper meets 90s Tamagotchi

https://github.com/danielbrendel/krepagotchi-game
1•foxiel•1h ago•1 comments

Show HN: Termiteam – Control center for multiple AI agent terminals

https://github.com/NetanelBaruch/termiteam
1•Netanelbaruch•1h ago•0 comments

The only U.S. particle collider shuts down

https://www.sciencenews.org/article/particle-collider-shuts-down-brookhaven
3•rolph•1h ago•1 comments

Ask HN: Why do purchased B2B email lists still have such poor deliverability?

1•solarisos•1h ago•3 comments

Show HN: Remotion directory (videos and prompts)

https://www.remotion.directory/
1•rokbenko•1h ago•0 comments
Open in hackernews

Offline-First with CouchDB and PouchDB in 2025

https://neighbourhood.ie/blog/2025/03/26/offline-first-with-couchdb-and-pouchdb-in-2025
68•felideon•9mo ago

Comments

matlin•9mo ago
PouchDB and CouchDB were what inspired me to build Triplit[1]. The idea of having an identical (or merely similar in the case of Pouch/Couch) query engine accessible on client and server is insanely powerful.

The author links to a much longer post on handling conflicts which is worthy of its length because it's not a pleasant experience with this setup.

I highly recommend trying a modern setup from one of the many new local first solutions [2]

1. https://triplit.dev

2. https://www.localfirst.fm/landscape

elcritch•9mo ago
Nice, I’ll have to try out Triplit. There’s also Couchbase which has a local sync database in C++ IIRC.

Also, heads up the first triplit link I tried gave me a 404: https://www.triplit.dev/docs/client/query/select#selecting-r...

matlin•9mo ago
Great catch, fixed!
WorldMaker•9mo ago
Couchbase had a lot of subtle incompatibilities with PouchDB in my attempts to use it on a past project. The big one I recall was that Couchbase had far more restrictions on key names and that required some workarounds.

(Though to be fair Apache has been threatening to shrink the key space greatly as well with the considered move to the Foundation-based "CouchDB 4.0".)

elcritch•9mo ago
Ah good to know. For my use cases I would probably be looking at Couchbase Lite [1] not PouchDB. I’d be more concerned about file attachment sizes and syncing.

1: https://github.com/couchbase/couchbase-lite-C

WorldMaker•9mo ago
That's a related thing I learned from that past project: file attachments are also extremely vulnerable to compatibility issues between CouchDB/PouchDB/Couchbase/Cloudant/etc. Even when they claim to support sizes large enough, they often fail to sync even when small. Attachments in general in the CouchDB protocol are a bottleneck that slows or effectively breaks sync if you have too many to sync at once, because most CouchDB-ish implementations tend to only process a single document at once among other factors.

The project I was working on involved regularly taking some photos and all the sync issues with attachments led to moving to syncing only metadata like width, height, and Blurhashes in the database itself and use a reference URL/pointer to a content-addressed storage (basically an S3 bucket-like with git-like hashes for filenames) we could background sync more directly outside of the CouchDB protocol. (Blurhashes were particularly useful there while waiting on that additional background sync phase after the CouchDB sync.)

justanotheratom•9mo ago
triplit sounds awesome. Any precedence of someone using it from a native iOS app?
matlin•9mo ago
With React Native yes but not yet with Swift. There's been quite a few requests to my surprise through--I figured CloudKit, etc would be sufficient on iOS but I don't have experience there.
justanotheratom•9mo ago
CloudKit not cross platform
4b11b4•9mo ago
How does Triplit compare to InstantDB?
mentalgear•9mo ago
it's fully open-source for once
nezaj•9mo ago
Instant founder here! We're fully open source :)

https://github.com/instantdb/instant

mentalgear•9mo ago
Great to see the founder of Triplit here! PouchDB was definitely ahead of its time, and it’s exciting to see its legacy being carried forward by so many modern local-first (lo-fi) solutions. I’ve also been a longtime fan of Triplit - its API, docs, and overall DX (plus direct community interaction) are excellent.

Also Triplit's universal client/server model means you never have to care about all the complexity of other solutions that require to get the transformations between client db & server db just right. A really impressive piece of work! (another great one with a universal db is jazz.tools, especially if you need encryption)

exe34•9mo ago
Please let's not make lo-fi mean local-first.
felideon•9mo ago
Is Triplit overkill (over PouchDB) if multi-user collaboration is not a use case?
chrismorgan•9mo ago
> Vite, well, it’s in the name. Fast build tooling.

Can someone explain this to me? I’m clearly missing something about its name.

cess11•9mo ago
It can mean 'quickly'.

https://en.wiktionary.org/wiki/vite

jimbobthemighty•9mo ago
CouchDB - is JD Vance a power user?
tty7•9mo ago
I used PouchDB w/ CouchDB as the datastore for a digital wallet. Used to store ZKs for proof of age etc.

Worked a treat

spiffytech•9mo ago
I would love to see a sync solution that didn't want to replace my datastore, or mediate all access to it.

This approach means the tools have to be good at not just sync, but also querying, business logic, validation, authn, authz, trigger background jobs, etc. That's a lot!

I'm not trying to eliminate my backend, nor an all-in-one frontend DB. I've tried tools that do that, and I've come to think the approach has severe limits.

I wonder if there's not a way to offer a two-way stream of data change events, with conflict detection/resolution, which I can process with my own code.

isaachinman•9mo ago
WatermelonDB and Replicache both follow this model.
k__•9mo ago
I had quite the offline-firat déjà vu, when I saw local-first trending the last two years.