Hacker News: tonyonodi

New comment by tonyonodi in "Artemis II is not safe to fly"

tonyonodi — Tue, 31 Mar 2026 12:26:54 +0000

I understand the point you’re making, but if this is a programme doomed to achieve nothing, that makes the risk even less acceptable.

Parakaryon

tonyonodi — Wed, 12 Nov 2025 21:45:24 +0000

Article URL: https://en.wikipedia.org/wiki/Parakaryon

Comments URL: https://news.ycombinator.com/item?id=45907208

Points: 11

# Comments: 0

I Made a Video Binary Search Tool to Embarrass UK Police into Doing Their Job

tonyonodi — Fri, 17 Oct 2025 10:14:40 +0000

Article URL: https://onodi.co/bisect/

Comments URL: https://news.ycombinator.com/item?id=45614988

Points: 3

# Comments: 1

Using Misdirection to Make a Local-First App Load Fast

tonyonodi — Tue, 09 Sep 2025 13:43:32 +0000

Article URL: https://numpad.substack.com/p/using-misdirection-to-make-a-local

Comments URL: https://news.ycombinator.com/item?id=45181808

Points: 1

# Comments: 0

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:52:25 +0000

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).

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:49:55 +0000

Yeah, you're correct, it's intentional. Though it's pretty gross to be honest.

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:47:45 +0000

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

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:43:42 +0000

It's closed source

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:43:07 +0000

`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.

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:40:14 +0000

Yes it is, and it's on my roadmap.

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:39:31 +0000

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 :)

New comment by tonyonodi in "Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing"

tonyonodi — Thu, 10 Jul 2025 09:37:48 +0000

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.

New comment by tonyonodi in "Ask HN: What Are You Working On? (June 2025)"

tonyonodi — Mon, 30 Jun 2025 10:08:42 +0000

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

tonyonodi — Mon, 30 Jun 2025 08:10:27 +0000

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 URL: https://news.ycombinator.com/item?id=44420711

Points: 46

# Comments: 28

New comment by tonyonodi in "Ask HN: What are you working on? (April 2025)"

tonyonodi — Tue, 29 Apr 2025 10:14:45 +0000

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.

New comment by tonyonodi in "Ask HN: What are you working on? (April 2025)"

tonyonodi — Tue, 29 Apr 2025 10:13:01 +0000

Yeah, that was annoying. It's fixed in v2

New comment by tonyonodi in "Ask HN: What are you working on? (April 2025)"

tonyonodi — Tue, 29 Apr 2025 10:11:55 +0000

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!

New comment by tonyonodi in "Ask HN: What are you working on? (April 2025)"

tonyonodi — Mon, 28 Apr 2025 16:20:17 +0000

Thanks! Though I can't really take credit for it, Soulver did it before me.

New comment by tonyonodi in "Ask HN: What are you working on? (April 2025)"

tonyonodi — Mon, 28 Apr 2025 16:01:34 +0000

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 contact@numpad.io

Noticing You Don't Want to Do the Thing

tonyonodi — Thu, 18 Apr 2024 12:09:49 +0000

Article URL: https://www.onodi.co/noticing

Comments URL: https://news.ycombinator.com/item?id=40075349

Points: 1

# Comments: 0