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Stop building automations. Start running your business

https://www.fluxtopus.com/automate-your-business
1•valboa•1m ago•1 comments

You can't QA your way to the frontier

https://www.scorecard.io/blog/you-cant-qa-your-way-to-the-frontier
1•gk1•3m ago•0 comments

Show HN: PalettePoint – AI color palette generator from text or images

https://palettepoint.com
1•latentio•3m ago•0 comments

Robust and Interactable World Models in Computer Vision [video]

https://www.youtube.com/watch?v=9B4kkaGOozA
1•Anon84•7m ago•0 comments

Nestlé couldn't crack Japan's coffee market.Then they hired a child psychologist

https://twitter.com/BigBrainMkting/status/2019792335509541220
1•rmason•9m ago•0 comments

Notes for February 2-7

https://taoofmac.com/space/notes/2026/02/07/2000
2•rcarmo•10m ago•0 comments

Study confirms experience beats youthful enthusiasm

https://www.theregister.com/2026/02/07/boomers_vs_zoomers_workplace/
2•Willingham•17m ago•0 comments

The Big Hunger by Walter J Miller, Jr. (1952)

https://lauriepenny.substack.com/p/the-big-hunger
1•shervinafshar•18m ago•0 comments

The Genus Amanita

https://www.mushroomexpert.com/amanita.html
1•rolph•23m ago•0 comments

We have broken SHA-1 in practice

https://shattered.io/
4•mooreds•24m ago•2 comments

Ask HN: Was my first management job bad, or is this what management is like?

1•Buttons840•25m ago•0 comments

Ask HN: How to Reduce Time Spent Crimping?

2•pinkmuffinere•26m ago•0 comments

KV Cache Transform Coding for Compact Storage in LLM Inference

https://arxiv.org/abs/2511.01815
1•walterbell•31m ago•0 comments

A quantitative, multimodal wearable bioelectronic device for stress assessment

https://www.nature.com/articles/s41467-025-67747-9
1•PaulHoule•33m ago•0 comments

Why Big Tech Is Throwing Cash into India in Quest for AI Supremacy

https://www.wsj.com/world/india/why-big-tech-is-throwing-cash-into-india-in-quest-for-ai-supremac...
1•saikatsg•33m ago•0 comments

How to shoot yourself in the foot – 2026 edition

https://github.com/aweussom/HowToShootYourselfInTheFoot
1•aweussom•33m ago•0 comments

Eight More Months of Agents

https://crawshaw.io/blog/eight-more-months-of-agents
4•archb•35m ago•0 comments

From Human Thought to Machine Coordination

https://www.psychologytoday.com/us/blog/the-digital-self/202602/from-human-thought-to-machine-coo...
1•walterbell•35m ago•0 comments

The new X API pricing must be a joke

https://developer.x.com/
1•danver0•36m ago•0 comments

Show HN: RMA Dashboard fast SAST results for monorepos (SARIF and triage)

https://rma-dashboard.bukhari-kibuka7.workers.dev/
1•bumahkib7•37m ago•0 comments

Show HN: Source code graphRAG for Java/Kotlin development based on jQAssistant

https://github.com/2015xli/jqassistant-graph-rag
1•artigent•42m ago•0 comments

Python Only Has One Real Competitor

https://mccue.dev/pages/2-6-26-python-competitor
4•dragandj•43m ago•0 comments

Tmux to Zellij (and Back)

https://www.mauriciopoppe.com/notes/tmux-to-zellij/
1•maurizzzio•44m ago•1 comments

Ask HN: How are you using specialized agents to accelerate your work?

1•otterley•45m ago•0 comments

Passing user_id through 6 services? OTel Baggage fixes this

https://signoz.io/blog/otel-baggage/
1•pranay01•46m ago•0 comments

DavMail Pop/IMAP/SMTP/Caldav/Carddav/LDAP Exchange Gateway

https://davmail.sourceforge.net/
1•todsacerdoti•47m ago•0 comments

Visual data modelling in the browser (open source)

https://github.com/sqlmodel/sqlmodel
1•Sean766•49m ago•0 comments

Show HN: Tharos – CLI to find and autofix security bugs using local LLMs

https://github.com/chinonsochikelue/tharos
1•fluantix•49m ago•0 comments

Oddly Simple GUI Programs

https://simonsafar.com/2024/win32_lights/
1•MaximilianEmel•49m ago•0 comments

The New Playbook for Leaders [pdf]

https://www.ibli.com/IBLI%20OnePagers%20The%20Plays%20Summarized.pdf
1•mooreds•50m ago•1 comments
Open in hackernews

Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing

https://numpad.io
46•tonyonodi•7mo ago
I launched NumPad v1 on here a few years ago, and back then it wasn't much more than a thin CodeMirror wrapper around the calculator engine I'd written.

Now I've rewritten it as a PWA that supports multiple documents, persists them to IndexedDB, and has a syncing service for paying customers. Syncing is handled by Automerge[1] under the hood, which should make it relatively easy to get document sharing working too.

[1] https://automerge.org/

Comments

johncosta27•7mo ago
This is very cool. I was able to so some a small budget to see what my expenses are monthly, it's quite nice. I can see myself using it anytime I need something more than paper, and less than a full spreadsheet. Very cool.
wslh•7mo ago
Looking for other notepad calculators I found odd products like this: https://www.ubuy.com.ar/en/product/IP17JM9X0-calculator-with...
abfar•7mo ago
Nice tool, but the calculator executes division before exponentiation. E.g. 2^4/2 is evaluated to 4, not 8. However, it executes exponentiation first before multiplication (e.g. 2^2*3 is evaluated to 12). Is this intentional?
bobeboph•7mo ago
This is intentional, even if unexpected, as shown in line 152 of the link (turn on line numbers in the settings menu). I agree that following PEMDAS would make more sense.

Edit: it's the equation below "Although if you want to find roots higher than 3..."

zamadatix•7mo ago
Maybe the author did intentionally break order of operations for shorthand on other roots, maybe they just forgot that's not how it's normally parsed. 152 doesn't comment on intent one way or the other, it just demonstrates how it currently is.
tonyonodi•7mo ago
Yeah, you're correct, it's intentional. Though it's pretty gross to be honest.
kragen•7mo ago
That's pretty nice; I've made a few attempts at such things myself, but the UI flow seems pretty smooth.

What's the license? I wouldn't want to use your code if copyright law poses a threat.

tonyonodi•7mo ago
It's closed source
kragen•6mo ago
Oh, okay, then I won't use it. Maybe it would have been better to say that up front instead of springing it on people later.
ajjenkins•7mo ago
This is really cool. I’m not sure what I would ever use it for, but it’s a cool idea and seems well executed.
justusthane•7mo ago
I don't mean this as a knock on OP, but it's not a new idea — I think the best known apps in this category are Soulver and Numi.

I find them super useful. Using natural language and storing the context along with the calculations helps me to sort of think through problems.

Being able to define variables on the fly is also very useful — I often use them for pricing out materials for projects. E.g.:

  "8ft 4 × 4" = $15
  "8ft 2 × 4" = $4
  "8ft 2 × 8" = $12
  "8ft 2 × 6" = $6.50
  "3/8in x 8in carriage bolt" = $3.50
  
  Adjustable stand
  "8ft 4 × 4" × 4
  "8ft 2 × 4" × 2
  "3/8in x 8in carriage bolt" × 12
  Plans $12
(What you can't see here is that Soulver gives all the totals in a bar on the right).

Soulver has some examples of other uses on their homepage: https://soulver.app

tonyonodi•7mo ago
There's a shout out to Soulver in the FAQ https://docs.numpad.io/#did-you-invent-the-notepad-calculato.... It's a great app, but Mac/iOS exclusive, and I think NumPad handles unit calculations a bit better (though I'm biased).
eviks•7mo ago
Unfortunately doesn't support superscripts 6²

Also is it possible to use CRDT as rich undo history, not only syncing?

tonyonodi•7mo ago
Yes it is, and it's on my roadmap.
zamadatix•7mo ago
Super clean style of interaction regarding the units and general syntax.

Regarding the CRDT side of things what's the main driver? Syncing is probably better off without CRDT (I'd rather know a note had 2 copies significantly edited differently and now I have a sync conflict rather than no sync conflict but a hacked up note) so I'm assuming paid customers get (or will soon get) live multi user editing (i.e. you can trade local for concurrent usage)

tonyonodi•7mo ago
Yes exactly, I had live multi-user editing as a feature until just before launch. In the end it needed a bit more work though, so I had to pull it.
shepik•7mo ago
The interface looks great.

Handling of "to" is a bit odd though.

150 kn in km/h [277.79976 kph] - this is unit convertion

150 kn to km/h [-276.79976 kph] - this is unexpectedly subtraction. I expected the unit conversion here, because of Raycast and Google

tonyonodi•7mo ago
Yeah, this was a deliberate decision, but a tough one and I can see why you might find it annoying. I think it makes date and time calculations more readable:

09:11 to 15:46

xz18r•7mo ago
I use Numerals(1) in Obsidian for this, and it works great. It's built on mathjs(2) and has things like @total functions which automatically sum all uninterrupted lines above it.

1 https://github.com/gtg922r/obsidian-numerals 2 https://mathjs.org/

owebmaster•7mo ago
Mate this is a show HN post, not a "recommend me something" post. Don't be rude.
xz18r•7mo ago
It doesn't hurt to list alternative products, right? Understanding the competition and lacking features. Mine isn't the only post in this thread mentioning other products that do roughly the same thing.
owebmaster•7mo ago
> It doesn't hurt to list alternative products, right?

Yes it does. Show HN is a very small opportunity for normal ppl to talk about their things.

tonyonodi•7mo ago
Honestly, I don't mind. It's useful to know about alternative products, and I hadn't heard about this one. Thanks all the same though :)
idanp•7mo ago
I always wished these notepad calculators would run plain python. POC - https://github.com/idanpa/jupad
zuzzurro•7mo ago
How do I do get the right result when trying: 200Mbps * 2hours? I get "400 Mbits/s hr" and that's not what I'm looking for. It seems to be working if I use seconds instead. 200Mbps*2s=400 megabits
tonyonodi•7mo ago
`200 Mbps * 2 hours in Mb` the second one works because the derived unit of the calculation works out to be exactly the same as a megabit, but that's not the case for the first one so you have to convert manually.