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tonyonodi

Re:Artemis II is not safe to fly on Tuesday March 31, 2026 @08:26AM (#47586329)
I understand the point you’re making, but if this is a programme doomed to achieve nothing, that makes the risk even less acceptable.
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).
Yeah, you're correct, it's intentional. Though it's pretty gross to be honest.
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

It's closed source
`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.
Yes it is, and it's on my roadmap.
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 :)
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.
Re:Ask HN: What Are You Working On? (June 2025) on Monday June 30, 2025 @06:08AM (#44421450)
Numpad: https://numpad.io/

It's a web-based notepad calculator, which means it's a notes app but it can evaluate inline calculations like

``` £300 in USD + 20%

09:00 to 18:30 - 45 minutes ```

I wrote the core of the calculator a few years ago, and I've just launched a big rewrite that supports

* document syncing * offline editing * markdown formatting * PDF and HTML exports * autocomplete * vim mode

Happy to hear feedback :)

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

https://numpad.io

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...

( Read More... | 29 comments | 2 points | on HN )
Re:Ask HN: What are you working on? (April 2025) on Tuesday April 29, 2025 @06:14AM (#43830661)
When I launched a lot of people asked for an Obsidian plugin too. I'm not averse to the idea, but I'm trying to turn it into a business, and those models seem tough to make any money from.
Re:Ask HN: What are you working on? (April 2025) on Tuesday April 29, 2025 @06:13AM (#43830647)
Yeah, that was annoying. It's fixed in v2
Re:Ask HN: What are you working on? (April 2025) on Tuesday April 29, 2025 @06:11AM (#43830641)
It's not showing in the screenshot because the numbers in the doc have different units, but it does do that https://imgur.com/a/SusFZDh (bottom right hand corner).

Let me know if you'd like to be part of the beta!

Re:Ask HN: What are you working on? (April 2025) on Monday April 28, 2025 @12:20PM (#43823154)
Thanks! Though I can't really take credit for it, Soulver did it before me.
Re:Ask HN: What are you working on? (April 2025) on Monday April 28, 2025 @12:01PM (#43822955)
I launched my web-based notepad calculator, https://numpad.io/, a few years ago.

Right now I'm working on a version 2 that has user accounts, multiple documents, markdown support, and document exports. Everything is local-first and it uses CRDTs to sync documents.

It looks like this: https://i.imgur.com/Plk1DQ4.png the calculator is mostly the same for now, with a few improvements. It's unstable right now, so I don't want to publicise the dev url, but if you'd like to become a beta tester email me at [email protected]

Re:Ask HN: What side projects landed you a job? on Sunday December 03, 2023 @05:59PM (#38511666)
My side project NumPad https://numpad.io got me my current job at Decipad https://www.decipad.com/ (the similar naming scheme is a coincidence!).

I came across Decipad while looking for a job, and messaged the founder, highlighting my work on NumPad. They were impressed enough that the hiring process ended up being just a few interviews, I've been there for almost a year now, and it's been pretty good!

If there's a moral to this story I think it's that you should aim for work that's highly relevant to your side project experience. In my case both NumPad and Decipad have a sort of programming language that can do calculations with units.

But ignore this advice if you can't find that work, or it doesn't seem good for whatever reason. You can still highlight your side project in an application, and they might be impressed anyway.

Re:Introducing TypeChat from Microsoft on Friday July 21, 2023 @05:54AM (#36811964)
That's a great analogy! I'd been wondering for a while whether that's a problem with this approach; to be honest I still don't know whether it is, so it would be good to see someone test it empirically.
That should be fixed now
Fixed, thanks for pointing it out :) https://numpad.io?#text/IwXgTAUMDUwARA
Thank you so much! Changes are live now :)

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