pmrcunha
Paulo

https://www.pmrcunha.com

Software Engineer. Former Architect.
Building a nostr client

Public Key

npub1k2vcw6agtcea54exjfrl07g6acp97k7jhs3f42zu0yy0xlqsequqsjfh9l

NIP-05 Address

pmrcunha@nostr.pmrcunha.com

NIP-57 Address

pmrcunha@strike.me

Profile Code

nprofile1qqst9xv8dw59uv762unfy3lhlydwuqjlt0ftcg564pw8jz8n0sgvswqpzemhxue69uhhyetvv9ujuurjd9kkzmpwdejhgqgdwaehxw309ahx7uewd3hkcmvxnve

Publishing to

relay.primal.net

nos.lol

Author Public Key

npub1k2vcw6agtcea54exjfrl07g6acp97k7jhs3f42zu0yy0xlqsequqsjfh9l

Show more details

Last Notes

2025-04-13 06:28:58

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HBO I think

2025-04-12 05:41:55

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Do you mean something like Frostr for multisig, or just a signer that supports multiple nsecs?

2025-04-03 08:01:39

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I’d also take a look at nostrify if you want something easier
https://nostrify.dev/
It uses nostr tools behind the scenes, but it’s higher level

2025-03-31 06:05:29

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There is no build script in the package json of nostr tools. But it’s still simple enough. Clone the repo, install bun, and run:
$ bun run build.js
$ tsc
(You can probably use node instead of bun)
Then the bundle file will be in the lib folder and you can just serve it with the rest of your app

2025-03-23 07:09:58

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That article is the only source I can find, and cites Max Keiser as their source…
I can find many other sources for the IMF having updated BPM7, their “statistics” manual to include cryptocurrencies. E.g https://cryptoslate.com/imf-updates-global-standards-to-include-crypto-in-balance-of-payments/
(I can also find sources in PDFs in the IMF website)
Sounds like another case of speculation/exaggeration

2025-03-12 09:55:27

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https://image.nostr.build/92246aeb9833deb3eae14aeb15dacd1866cbd7da4111f1db19e73a623a0d770e.jpg

2025-03-09 07:21:41

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@npub1s5y…6q7z said in a podcast he was using ChatGPT to know the nutrition of his meals, just from a picture

2025-03-06 07:17:10

#nevent1q…etjq

2025-03-06 06:17:45

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I’d guess this is why he wants Greenland. If I remember correctly it is part of the early warning mechanism in case of nuclear attack from Russia

2025-03-05 14:47:25

First time I see bitcoin covered in Fermat’s Library!
https://fermatslibrary.com/s/bitvm-compute-anything-on-bitcoin

2025-03-04 16:08:40

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Is this a banana in a coffee or a coffee in a banana?

2025-03-02 22:07:44

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Ah, currently reading the same book!

2025-02-25 09:19:44

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Turned it off. News are bad for your brain. Bad use of electricity.

2025-02-25 07:50:17

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Replace Highlighter with Fountain and that’s me

2025-02-24 21:54:13

Wanted to play a bit with n8n and ollama, so I’ve set up a bot to translate Lithuanian news titles to English.
If anyone is interested:
@npub1aht…ulu7

2025-02-24 08:52:14

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He said that in some interview I saw

2025-02-22 17:26:39

Awesome talk! #note16yn…7tph

2025-02-22 15:39:45

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In iOS at least. Don’t know if you can see here, but your picture is pixelated. Pictures that aren’t edited seem to be fine. https://image.nostr.build/67c2d309e62df6ac50a50e6454ac1d5318eab713ac37479cb743fd40bc2912c4.jpg

2025-02-22 15:08:15

@npub1l2v…ajft are you aware that square cropping reduces picture quality a lot in Olas?

2025-02-22 06:37:15

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It is a way for two relays to know which events one has and the other doesn’t, so that you can sync them.
You can use a local relay / cache and keep it in sync with your actual relays easily. And it’s super fast!
If using JS, take a look at @welshman/net for a good implementation.

2025-02-22 06:19:43

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Negentropy

2025-02-22 06:16:36

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Makes sense that Google built a whole frontend framework on top of it.

2025-02-21 06:50:51

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Wasn’t this guy a self help author?

2025-02-19 06:48:52

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Have any relays (and clients) implemented it already?

2025-02-18 21:14:40

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I think it’s all a question of which kind of problems you want to have…
A complex app will have lots of state to manage no matter what. With vanilla JS you’ll have to find a structure for it yourself. Frameworks bring you a structure and a bunch of tradeoffs.

2025-02-18 19:28:38

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Hadn’t heard about rimmeljs 👀
Used stencil a bit and it was quite enjoyable. In rust I played with yew and a bit of leptos, but you end up having to write a lot more stuff yourself.

2025-02-18 15:24:17

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What are you looking into, post svelte?

2025-02-18 07:02:35

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Ah! I was taking a look at Coracle’s code some time ago and thinking “maybe I should learn this Svelte thing” 😅
Call me old fashioned, but my go to is still react + redux + redux-saga. Yes it’s boilerplaty, but isolates UI code from state management, from side effects, which makes debugging much faster (no magic). That said, if I was optimizing for performance I’d maybe have to reconsider.

2025-02-17 14:05:59

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I’m experimenting with building a simple wealth tracker, where you save encrypted records of your assets’ value to a local relay (indexedDB), and sync to a trusted relay.
If your nsec is compromised, the ideal would be for the data to not be revealed without an extra key.
If I’m not mistaken, the scheme you shared allows me to achieve this, since you’d need the device as well to decrypt. And I would add a passphrase, for when the device is compromised.
Am I doing something stupid? 😅

2025-02-17 07:33:59

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I’m working on a prototype where I was nip44 encrypting the content directly (and not feeling comfortable about it), so this couldn’t have come at a better time 🙌

2025-02-08 17:20:06

One click wallet
#note1ltd…5rxy

2025-02-05 22:36:20

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Found this one very insightful:
naddr1qq25gnzpveay5jns29z9xdrkdgehw5mvv46k6q3qarkn0xxxll4llgy9qxkrncn3vc4l69s0dz8ef3zadykcwe7ax3dqxpqqqp65wuucp8v

2025-02-04 21:10:15

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@npub1hee…rsv6 was posting about building a gifs SDK today

2025-02-04 10:54:44

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Ycombinator might select for people who actively misunderstand it.

2025-02-02 09:49:14

I once tried to convince the CEO of Sketch that all design tools should have command lines, like AutoCAD. He was not convinced 😅
#note1drm…0v6m

2025-01-31 11:56:36

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I think we usually call supply growth adoption :)

2025-01-31 11:53:24

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In the short term, it reduces their earnings I guess, since it reduces the amount of transactions (assuming those transactions would be made in the base layer otherwise, which isn’t true in many cases).
In the long run, it raises the economic value of each base layer transaction, which should allow for higher fees.
But in the short run, I believe most gains come from the block reward, not fees (haven’t checked recently though)

2025-01-31 11:26:53

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I think it de incentivizes all mining equally. It means you’re mining just for the block reward, which is halved every 4 years… so that revenue has to be replaced by fees over time.
The solution is not so much on the mining side, it is on having more usage of Bitcoin P2P - more on chain payments, more lightning channels being opened, etc..
Unfortunately we also have the incentive to hodl and spend fiat instead, so this will probably only really change when there is a significant amount of people with no fiat to spend (I.e living in a bitcoin standard).

2025-01-31 11:09:20

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Nodes can reject blocks, but if you don’t have miners with an economic incentive to build blocks with all transactions (to earn fees) you don’t have censorship resistance.

2025-01-31 06:01:44

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Would be a great time for Americans to read Economics in One Lesson (chapter 11 in this edition) https://www.liberalstudies.ca/wp-content/uploads/2014/11/Economics-in-One-Lesson_2.pdf
https://m.primal.net/OJPA.jpg

2025-01-30 05:16:26

How nihilistic does someone have to be to put money in “retardio”…
#note1tly…2dyh

2025-01-23 07:54:00

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Or the sequel, I don’t remember (it is better)
https://youtu.be/GTQnarzmTOc

2025-01-20 15:06:16

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You can also follow the author, @npub16dh…0nkq!

2025-01-20 08:18:04

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Welcome!
@npub1cj8…rz4u made a great podcast episode about homeschooling recently, maybe you’d find it interesting 🙂
https://fountain.fm/episode/VzL2U8TK23gx2hRyblgY

2025-01-20 08:01:02

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Ah, that’s easier, you can do that by building a nostr client. You can learn from this one that is similar to what you’re describing: https://github.com/shopstr-eng/shopstr

2025-01-20 02:11:22

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There’s only one reason to use it and my employer wouldn’t like it

2025-01-20 01:56:38

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Algorithms are very minimal in most nostr apps, so in most cases searching for an hashtag will give you every post with that hashtag

2025-01-20 01:50:54

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A zap is like a tip, a small amount of bitcoin that you can send or receive for content that you/someone found particularly valuable

2025-01-20 01:36:00

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Welcome! If you’re into live streaming, take a look at https://zap.stream/. It’s a bit like twitch on nostr.

2025-01-20 01:24:00

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Hey @npub1t7u…vzw6!
One of the coolest things about nostr is that it is an open system which anyone can build on top of, so there’s a lot to try. Download @npub1v5u…n0v5 and you can see which podcasts people are talking about. In @npub1yfg…v6vg you can also find new music. Go to https://zap.stream/ for live streaming. If you post something in these apps, it will show in the app you’re using now too. Once you follow some people you’ll be following them in all these apps.
It’s all powered by that secret key you just created (your nsec). Keep it safe!

2025-01-20 01:01:37

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No, he is suggesting two of many apps that you can try. They all work together since this is an open system that anyone can build on top of. Try @npub1v5u…n0v5 , I use it everyday for podcasts 🙂

2025-01-20 00:47:20

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You and me both 😅 never used TikTok, I guess that didn’t help my prediction

2025-01-17 17:36:23

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@npub1utx…50e8 has set up a bunch, but I’m not sure if he has an index of them

2025-01-16 15:42:53

Great guide 🙌 #note12hl…nj47

2025-01-06 15:54:58

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I’d say that’s the place to start, and then I’d also recommend this, for hands on practice: https://exercism.org/tracks/rust

2025-01-01 09:56:56

Louis Vuitton supporting nostr
https://m.primal.net/NNcI.jpg

2024-12-30 11:14:23

I wonder if Europe’s lack of growth is related to the fact that most people unconditionally hate billionaires…

2024-12-30 09:58:28

On real estate prices in Portugal: don’t think Blackrock is the issue here as Katie was saying (at least never heard about it).
The money printer obviously had a big effect, but also the fact that Portugal built half the amount of housing it used to in the last 20 years.
Immigrants probably had an effect in expensive real estate only, which should actually stimulate new construction elsewhere.
The problem is that approving a construction project is a bureaucratic nightmare that takes years (@npub1dtf…hgu0 mentioned it took him 4 years in a recent podcast episode).
The rental market is tiny, because you’d be crazy to rent out your apartment with the current laws.
Buying a house involves paying 4 related taxes and 23% sales tax in building materials will be passed to you by the builder.
All this to say, there’s more ways for politicians to be incompetent than money printing.
https://fountain.fm/episode/DytD53ZzWpTLCYM2tzbI

2024-12-29 08:43:03

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Exit through the gift shop (old but good, if you didn’t watch it)

2024-12-29 08:40:32

I think this would cause climate change… #note1mkg…qhp2

2024-12-23 20:33:39

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Not kids show today, I guess 😅

2024-12-23 09:39:20

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No love for nostr? 🥲
https://m.primal.net/NEFW.jpg

2024-12-22 17:21:32

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It is indeed. But it's impressive what you achieved so fast! Replying from your client btw

2024-12-22 17:09:17

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Nostr inception
https://image.nostr.build/a5b018346c7bf90e554d0481dde62b238d424047a31b80ea5377a0f946123303.png

2024-12-22 16:56:29

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Indeed, it was a counterpoint to @npub12sx…zzke's reply 🙂

2024-12-22 14:42:30

I don’t want dollars. Saylor doesn’t want dollars. Promoting the dollar to others is not in their interest. #note1y3s…389r

2024-12-22 14:02:55

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Counterpoint: https://graduallythensuddenly.xyz/exchange-theory-of-value/

2024-12-22 12:19:26

Graphics programming is awesome in general!
Also, fuck software patents. #note1th0…5hzr

2024-12-21 11:27:10

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Probably related: fiat profiteers will be the last to buy bitcoin and that’s beautiful

2024-12-21 10:44:02

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Starting to see why you need more than 1000 filters 😅

2024-12-21 10:42:21

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“in my local database” 😅

2024-12-20 10:47:30

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The rest is nostr magic 🪄
Is your client snort? I see you in the devs list

2024-12-20 10:38:07

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Nice! For me it works on Damus, but not on Primal.
But streams in notes will be very good for discoverability.

2024-12-20 08:36:33

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The protocol can and does change, but I don’t think there’s a verifiable way to guarantee that a relay will honor your wish not to send events to a certain pubkey

2024-12-19 12:24:24

If it follows the web, v3 is a terrible idea #note1ytc…y4hu

2024-12-19 10:02:49

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Only in the landing page, seems fine in other pages

2024-12-19 09:57:46

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Btw, the burger icon in your landing page isn’t working 😉

2024-12-18 10:31:44

On npubs vs nprofiles #note13pt…4pev

2024-12-18 10:23:28

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Stay safe!

2024-12-18 10:22:42

Some spy shit right here! 🤯 #note1k0d…2z5k

2024-12-18 10:16:29

Bot to notify about earthquakes in Japan. Cool to see life saving stuff in nostr! #note1xtl…mw50

2024-12-16 23:21:57

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Well, I interpreted the point of the discussion as why would devs chose webapps when that doesn’t provide the most reach.
I think your point about users not knowing how to deal with web apps applies equally to not knowing how to deal with alternative stores - and in ios is not possible at all.
However, a web app can still be used as a regular website in the browser, even if the user can’t figure out how to add it to the Home Screen.
I do agree with the rest you said. Webapps do provide a worse experience on mobile.

2024-12-16 22:10:46

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I get it and agree, but the majority of mobile users are also exclusively using the official stores (in iOS they don’t have a choice). If I remember installing from APK on android (it’s been a while), you have to ignore a bunch of scary pop ups from the OS.
Don’t get me wrong though, I do think native apps provide better UX, cause you don’t have the indirection of a browser between you and the device. And Zapstore is a very cool way to distribute those apps!
But for now, I see web apps as the best way to avoid App Store bureaucrats and their shenanigans, while still reaching most users.

2024-12-16 20:26:26

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But you wouldn’t be targeting 90% of users anymore.

2024-12-16 18:29:56

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8 options and they’re all bad

2024-12-16 18:24:06

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In my case, single reason: I don’t want to ask permission to publish an app

2024-12-16 09:53:53

Revokable subkeys will be a need for sure. It’s a matter of time until a bad client (intentionally or not) leaks a bunch of nsecs.
The dual stack approach sounds reasonable, but could also demand a lot from devs, when there are still few clients that reached maturity.
I think the path forward would be to have a prototype client with this dual stack approach, to learn how to do it as painlessly as possible. It would also give time for more clients to stabilize before they need to think about this.
But obviously, that will require someone’s time.
Focusing too much on which breaking changes to adopt would make it a harder and longer discussion than what the upgrade approach should be, assuming people agree that breaking changes will at some point be required. #note1ms8…xadr

2024-12-15 17:38:50

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I can’t stop recommending this site, which tracks event kinds being published by clients, which haven’t been documented through a NIP yet
https://undocumented.nostrkinds.info/

2024-12-15 17:34:05

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Might grant a new agreed upon event kind in the future (specially if there’s several job board clients), but for now a client can just start publishing a new event (if needed) and we can figure out how to interop later. That’s one of the beautiful things about nostr.

2024-12-14 08:41:00

Really nice components!
#nevent1q…u3ls

2024-11-26 14:13:53

Their imagination to invent new taxes has no limits #note1z2g…tzc0

2024-11-26 13:56:02

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You can build the tools, but changing a culture is something you can only do one person at a time…

2024-11-26 07:39:09

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I got a decent idea of what they are from this article
https://blog.casa.io/why-bitcoin-needs-covenants/

2024-11-25 07:50:48

I think with this post @npub1qny…95gx succeeded at bringing more bitcoin development discussion to nostr.
This is awesome, I was less aware of what’s going on than back when I was using Twitter.
These conversations are more important than price talk. #note16h9…tlgm

2024-11-24 15:43:40

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There's this proposal to serve a static site from a blossom server: https://github.com/nostr-protocol/nips/pull/1538

2024-11-24 15:15:31

BlueSky getting the devs attention... Hard to avoid when they hired Dan Abramov. Anyway, left my Nostr lure comment there 🤷
https://www.youtube.com/watch?v=cIoYUQhKJUo

2024-11-17 09:56:44

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GM!
This may be useful: https://undocumented.nostrkinds.info/

2024-11-16 11:15:48

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Ok, it wasn’t that bad, but halloumi is always a better option than tofu

2024-11-16 11:14:53

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I bet they’re on Mastodon

2024-11-16 11:08:31

You will eat shoe and be happy! https://image.nostr.build/09448cc31dc3f1bba544e7cd6370e16dc70d682ebb5f93bafd7fce76fabe00f9.jpg