Egge

https://my2sats.space

Building https://npub.cash 🥜 Working on awesome nostr, cashu and Lightning stuff 💜⚡️

Public Key

npub1mhcr4j594hsrnen594d7700n2t03n8gdx83zhxzculk6sh9nhwlq7uc226

NIP-05 Address

egge@getcurrent.io

NIP-57 Address

egge@npub.cash

Profile Code

nprofile1qqsdmup6e2z6mcpeue6z6kl08he49hcen5xnrc3tnpvw0mdgtjemh0spz3mhxue69uhhyetvv9ujuerpd46hxtnfduq3vamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmnym9hkzj

Publishing to

relay.damus.io

relay.nostr.band

relay.0xchat.com

Author Public Key

npub1mhcr4j594hsrnen594d7700n2t03n8gdx83zhxzculk6sh9nhwlq7uc226

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Last Notes

2024-08-31 09:14:45

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Thank you so much, that is great feedback!
Instead of welcome stranger your username will be shown, but I might lower the brightness if that text a bit.

2024-08-31 08:51:11

Second iteration
https://m.primal.net/KWnU.png

2024-08-31 05:52:05

Working on a cleaner design for npub.cash. WDYT?
https://m.primal.net/KWcQ.png

2024-08-29 19:30:52

What is the most important in a payment / POS system?

2024-08-27 18:26:33

I just created a Cashu Payment Request with the new POS I am working on. Then I scanned, parsed and paid it with a fork of cashu-ts.
Merchant adoption here we come 🫡💜

2024-08-25 17:23:12

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Do you ship worldwide?

2024-08-23 03:51:48

Nostr vibes 👏 https://image.nostr.build/ea8e7347f3f47ab49931b918c39e9bc65b74e5fad22266a96db1a9ecce8de686.jpg

2024-08-21 12:57:55

Let’s see what you got ✌️ https://image.nostr.build/06706828dafec16eb7de6b9bf50d0accd8c6008ea610bf288749eacddd6909d5.jpg

2024-08-16 03:37:13

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I will look into this! I have not tested amber thoroughly yet

2024-08-15 13:16:15

We are back ✌️ #note1qw6…fn8x

2024-08-15 11:46:13

Dear npub.cash users,
npub.cash is currently experiencing some issues with all lightning operations. Withdrawals are not affected.
This seems to be caused by a downtime in the Blink API. I will share an update once this has been resolved 💜

2024-08-15 11:33:36

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It seems like there are issues with the Blink API right now, which npub.cash uses to wrap invoices.
I am looking deeper into this and will give you an update once this has been resolved.

2024-08-15 11:21:48

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Investigating!

2024-08-14 19:11:53

I am working on adding nut-zap withdraws to npub.cash right now.
@npub1l2v…ajft I think I accidentally created two wallets, and now I got two 37375 events for my pk. Whats the best way to deal with this? Should senders just assume the newest wallet is the right one to send to?

2024-08-13 10:04:30

Cannot wait to finally test npub.cash's nip-60 integration 🤫

2024-08-13 10:02:25

Life changer: write a tmux setup script and alias it to get your dev environment set up quicker
https://video.nostr.build/5ca02feb3e278b8e2cf1d5cab8efe0bdeed691da81622a75fb25722d6df87cbf.mp4

2024-08-13 07:30:23

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Sure, but how would the UX flow look like?
Let’s say I have received 50 zaps and want to claim them. I close the token by accident. With the withdrawal list I can resurface the token. How would that work if I see only “deposits”? I guess you could let the user reconstruct a token by selecting certain “ins” but how would they know which ones are really spent and which ones are marked as spent because they closed the token screen?

2024-08-13 07:03:34

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Maybe it do list both. Adding withdrawals was necessary to avoid people loosing proofs, as npub.cash is now optimistic about it and marks all proofs as spent once you withdraw.
So replacing withdrawals will not be possible, but the history could list both ins and outs

2024-08-13 03:32:15

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Right. I am definitely talking about high quality, artisan wines that tell a story about a terroir.
Not the cheap, one-fits-all pinot gris from the supermarket

2024-08-13 03:29:19

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I truly think there are many parallels. What made me fall in love with wine is its authenticity and scarcity.
Some wines become irreproducible because of a change in fauna, or a change in climate or simply because a winemaker died and had no heirs.
Of course this is not the same cryptographic-secured irreproducibility, but I believe it is the next closest thing.

2024-08-13 03:21:40

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Wine is the most bitcoiny thing next to Bitcoin.

2024-08-12 17:49:30

Building and open source project using an open source library to interface with the open source protocol… and contributing to all of them along the way 💜
npub.cash -> cashu-ts -> Cashu https://image.nostr.build/ae238f882fa730461f161c76633fa2aa4cf9266d51611a5465f021904c039a4d.jpg

2024-08-12 12:34:51

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I would, but it’s 4200 miles from my place haha

2024-08-12 09:57:19

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Sounds great. But 2100 is considered a small batch? I would love to try 👌

2024-08-11 20:15:34

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It’s a staging url with a bright yellow warning at the top. I am sure they will be careful 🙃

2024-08-11 20:01:09

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What an amazing idea. I am sure there is a way to make this work without disclosing your information to the mint prior to the attacker unblinding the token.

2024-08-11 19:55:02

Another Cashu-native Lightning Address powered by npub.cash 🤯
This is amazing! 💜 https://image.nostr.build/2ace9c2714e8e8f7ca8fab4a919ee94d519d2d76773d4bb90ef4d7d103e40d30.jpg

2024-08-10 11:26:25

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That defeats the purpose. At some point all proofs in npub.cash should be locked to the users pubkey to minimize the trust required in the server operator

2024-08-10 11:25:19

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QR codes & token string length. Also overhead on both client and server for things like decoding etc.

2024-08-10 10:55:29

I wonder what would be a better way to solve this issue…
npub.cash will hold many many proofs for its users. If someone wants to withdraw, the server needs to send all those proofs over in a big response.
The obvious choice is to run clean up and consolidation jobs that merge proofs together, but once P2PK is adopted this will no longer work (as the server cannot do anything with the proofs)…
I’ll keep thinking about this, but maybe one of you has a bright idea ✌️ #note1gty…2k99

2024-08-10 08:25:15

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surprised_pikachu.gif

2024-08-10 07:26:52

PSA: npub.cash just had a small change in its public API!
While /claim used to return a token containing all pending proofs, it now returns a token containing max. 100 proofs! Additionally there are two new keys in the payload:
- count: how many proofs are included
- total pending: how many proofs are pending in total for the user
This change makes sure that the token does not get too long for handling it and lets API users now if there are more proofs pending.
I am not perfectly happy with this yet and I will continue looking into other ways to handle these edge cases. 🫡💜

2024-08-08 17:57:33

Just read the latest FM newsletter and found this lmao 😂 https://image.nostr.build/d14b602400ed3ea5c00cff29185a12a39216e02852b42cef69c7a6780985844b.jpg

2024-08-08 17:51:44

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It’s called retronasal smell. The tongue is actually pretty “bad” at tasting. It can only differentiate between some macro / major tastes (sweet, sour, etc.). Other aromas that you taste actually come from the nose “smelling” the molecules going back into your nasal passages through your throat.
Its the main reason why sommeliers fear getting a cold / clogged nose 😁

2024-08-08 16:32:07

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Yes I did. And yes I did. React Native is ALOT slower than native. However:
- Depending on the use case this is actually not an issue
- You can always outsource very heavy-duty work to native modules that run outside the JS thread.
- React Native runs two seperate threads by default; JS and UI. For example a loading spinner can still run smoothly while the JS thread does heavy work in the background.
With Current we pushed an JS only app to the limits. Handling hundreds of nostr events, parsing them and rendering UI components from them really was difficult, but it ran smoothly on most devices.
I would not recommend running POW in a react native app without using native modules

2024-08-08 16:27:46

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Yes absolutely. There is a PR in the work, but I had to push it back a bit because this was a functional change with high priority. Once this release goes live I will continue and add manual NIP-60 withdrawals first and auto-claiming to NIP-60 wallets soon after.

2024-08-08 16:24:17

After being delayed for over a week I finally managed to finish the new release for npub.cash. It is now in staging and if everything goes as planned I will manage to release it tomorrow.
This release took a while to complete, because it changes the way how the server keeps track of the token spending-state. It used to check all pending claims all the time when user accessed the wite, which cause much traffic for mints and also caused issues when users had many proofs pending (Some had over 1000...)
npub.cash will now assume a token as spet as soon as you create the token / qr code. If anything goes wrong, you can resurface the token at any time from your withdrawal-history tab.
Also npub.cash will check how many proofs are pending and will paginate the result if there are too many. This will keep issues from arising, especially regarding token size.
https://m.primal.net/Jscg.png

2024-08-08 16:08:06

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React Native with Expo. Web, iOS and Android from a single source. However it can get tricky when it comes to crypto operations, but you can always get things to work.

2024-08-06 11:03:36

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The web would look vastly different if it was not for display advertisement. It enabled millions of content creators world wide. Value4Value can change that, but we are not quite there yet.

2024-08-06 10:21:44

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This is a very difficult topic. If you limit marketing cookies on the web you hurt publishers (as most of them monetise through ads and CPMs plummet once you don’t have cookie) and cause advertisers to pump even more money into walled gardens like meta (as those have EULA / ToCs that make you opt in to their tracking).
At the same time advertisers come up with other ideas to track you like email based, deterministic IDs…

2024-08-05 19:18:25

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What makes you say that?

2024-08-05 18:11:18

What is your guilty pleasure? (As in: Instead of buying this I could be stacking sats, but I am still doing it)
#asknostr

2024-07-25 14:41:24

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This is the new token format. Most wallets do not support it yet. Newest nutshell release should be able to redeem it

2024-07-25 14:23:26

This is the first v4 token ever created by cashu-ts...
cashuBpGFkYGFteBxodHRwczovL3N0YWJsZW51dC51bWludC5jYXNoYXVjc2F0YXSBomFpSABBRr30qa+rYXCCo2FhBGFzeEBjYWYwZGY4MjZmYTdhMDQxNzdjM2E5MzI3MjY3NDhhZmMyMTZhMDQ1OTA1OGVmNzUyMGQyMGM5NTZlNmE0NmUwYWNYIQJEqBgm4Ytnt8Ww3WScscWgXgu7FYmzp+Ga4t64D07NFKNhYRBhc3hANmM2MWZlNTBhOWVkMWZlNWVjMjQzZWNkYmE2YjNkNzRiMmU3ZGUzYzk5NzNkMGVjNWI0OGI2Mzk1MzQ4NDU
5OWFjWCEConcD41SS1hac0ukY9tnXQY6c5ke4vbxnOLJF/KIWk2g=
please let me know if this works 😉

2024-07-24 07:53:27

Pretty close to releasing the biggest update to npub.cash so far.
Most changes are under the hood, optimising the way npub.cash handles token state in order to reduce the amount of requests.
Also I am adding support for nostr-based cashu wallets like nutsack 👀 Users will be able to withdraw their balance to their nostr-cashu-wallet. Furthermore you can setup a "redirect" so that all transactions land in your nostr-cashu-wallet automatically, essentially adding a npub.cash address to every nostr-cashu-wallet out there.
These changes do not only require a lot of work on npubcash-server, but also on the website and the SDK. I hope to get it out by early next week 💜

2024-07-19 08:46:11

As I have been saying... Zap these nuts! ⚡
👀 Claiming from npub.cash directly to your Nostr Cashu Wallet? No mind if I do!
https://m.primal.net/JWHz.png

2024-06-28 13:32:14

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There is no need to develop in private though. Why would you want to do that?

2024-06-27 12:49:11

Iced coffee is the only thing that keeps me going on days like these lmao…
Enjoy the sun anon 💜☀️

2024-06-25 16:05:50

Because there is much chatter going on right now:
Cashu Token Proofs / Signatures do not encode a mints URL. If a mint would loose its domain, wallets could simply update the URL and spent the token there. 🥜🫡

2024-06-19 05:40:01

So much code to write and so little time… what should I finish first?
- OTP login for npubcash-server
- WebSocket balance updates for npubcash-server
- npubcash-umbrel
- npubcash-desktop
- npubcash-sdk for react native
I think I have coding ADHD 😅

2024-06-18 18:12:41

If someone were to sell these, would you buy them? And what would you be willing to pay for it? https://image.nostr.build/23a0f8443f14f04a3db3515098fe0a81074358117632f17e3b92446e936dd68d.jpg

2024-06-17 12:30:38

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HTMX 🤷🏼‍♂️
No but for real… That’s the reason why I fell in love with Go

2024-06-17 07:09:54

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Danke 🤩🙌🏻

2024-06-16 19:18:05

Hey everyone, exciting news! Starting today, @npub10pe…n34f is supporting my work on npub.cash 🧡
I’m incredibly grateful and honored for this opportunity. It means a lot that the board recognizes the dedication I’ve put into npub.cash and believes in its vision.
As someone who’s been part of this journey for just a few years, this support and acknowledgement truly means a lot to me.
This grant not only provides financial backing but also validates the potential impact npub.cash can make. With this, I’m excited to take npub.cash to new heights. Thank you for everything! 💜

2024-06-14 07:36:46

#0xchat just became the very first wallet / client to fully integrate npub.cash in their experience.
Automatically claim your npub.cash balance into the local eCash wallet running in 0xChat
This is huge 🔥🙌🏻 https://video.nostr.build/80c79051177715c97b69cf591c163f379dcbda5d248a40ba2662366a73e1ad8f.mp4

2024-06-13 09:06:53

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Who made those vouchers? I need some of those! Can you tell them to reach out to me?

2024-06-13 04:36:42

I know people say that building custom keyboards can be addictive…
But I think I am done. This is perfect. https://image.nostr.build/17910283d474a0c104bf47a4965d49c27c92b0c39d9c326327d4b6d8a9696d3b.jpg https://image.nostr.build/320d18d76e1e046f4b910d08d374f4b2c020820988fb0543ec23d922dd596c8e.jpg

2024-06-13 04:33:18

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And you helped me find a bug on the payment pages right away. Thank you!! 🫡💜

2024-06-12 18:40:00

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Thanks! I am actually considering to go fully wired for lossless audio. But I’ll definitely be looking into those as well.

2024-06-12 18:33:38

I am finally ready to drop my in-ear Bluetooth headphones for something that actually sounds good.
What does nostr recommend?
#asknostr

2024-06-12 14:59:37

I finally made it. npubcash-server is now deployable without much hassle. 🥜
This is not final and merged yet, so please proceed with caution. If you try it out, please let me know when you break something 💜🙌🏻 #note1fs4…wqmk

2024-06-10 16:10:02

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Is the decoding done on the client side? Did you write a tool for it or is it based on lightweight-bolt11-decoder?
If you did write a tool for it, is it open source and typed?
I have got about a gazillion projects that could use that lmao

2024-06-10 08:37:57

Thanks to @npub179e…lz4s calling me out on the ease of use of npub.cash, I am working on a OTP type login.
The user will enter their pubkey to login. The server generates an one-time-password and send it to this pubkey in an encrypted DM. The user can then enter the OTP in the browser window and obtain a session token.
This will dramatically increase the UX on mobile devices and offer a more sure way to login vs. raw nsec.
https://m.primal.net/IfRb.png

2024-06-09 08:09:06

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Server can keep track of ids and disallow timestamps that are out of bounds. No need for a challenge

2024-06-09 07:58:41

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Wow! That really is brilliant @npub179e…lz4s!
This will definitely get integrated 🙌🏻

2024-06-08 19:55:19

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I do believe in freedom of speech. Freedom of speech and freedom in general. However I believe your freedom ends where my face begins.

2024-06-07 17:07:53

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I think it’s pretty obvious why it’s an attack on the right to privacy, no?
And it is an attack on the freedom of speech, because they don’t have any other agenda but to put a bad light on his work and nostr.

2024-06-07 13:26:43

Just read some post about expected iOS18 features…
- AI generated email responses
-> Apple reads your emails
- Apple Health introduces new AI powered features
-> Apple has all your health data
- AI powered notification summary
-> Apple reads your notifications
Time to get rid of my iPhone

2024-06-06 18:31:24

Doxxing an anonymous developer is a disgraceful act and has no place in investigative journalism. It's simply wrong, especially when the intent is to undermine an open protocol that champions free speech and its supporters.
This is an attack on the freedom of speech and the right to privacy. Everyone involved in this article should be ashamed of themselves. #note1rny…a58f

2024-06-05 19:03:42

Man I really have to admit... Building the npub.cash desktop client using Electron as exercise has been so much fun... I think this is the most fun I had building something in a couple of weeks if not moths... kudos Electron
#note1ead…0fx7

2024-06-05 18:13:16

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The frontend DX is pretty awesome though. I dabbled with Fyne and QT a bit, but found it quite cumbersome (probably did not give it enough time though).
I will definitely give Wails a shot soon (but that’s HTML/Js on the frontend again)

2024-06-05 17:36:22

A year ago I was wondering why anyone would ever use Classes is Javascript... Now I look at my code and see a AppController instance that keeps a dual binding reference to a Wallet interface that also acts as an Observable to keep other parts of the app informed of state updates...
This is what reading @npub19mu…jnft books does to you... Be careful

2024-06-05 13:39:15

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Happy to help with this depending on the details . Send me a DM

2024-06-04 15:30:32

Just tested the duress pin on GrapheneOS... Pretty awesome! But without plausible deniability this really takes some balls to use in a wrench attack situatiin lmao

2024-06-04 08:29:03

I have been hating on Electron for such a long time, but it’s a pretty amazing development experience TBH 🙃

2024-06-03 11:18:14

I really hate working with file paths in node… such a mess
But I am THIS close to dockerizing npub.cash with automatic database setup… 🤬

2024-06-03 09:28:20

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LFG!! well deserved man!

2024-06-03 05:31:01

What is the best window manager for macOS? #asknostr

2024-06-02 14:50:21

Steak thermometer yes or no? 🥩 https://image.nostr.build/a68b7e87a3f09964402596b2fa10dfb441eb9e4fc610047ca3fd94eba416f3b6.jpg

2024-06-02 09:57:20

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Those are .ts files haha, but I guess due to the compression of nostr.build I could now be mistaken for a real dev lmao

2024-06-02 07:10:15

I recently started to invest a lot of time in the npub.cash testing suite. It's a painful process as I am still new to test design and the original code was strongly coupled, but I am getting there.
Vitest comes with a UI that will let you inspect not only coverage, but also your codes module graph, which is a great help when trying to decouple.
https://image.nostr.build/6e6639b2ec45648bb7bd159e3678c13e2e1bd16acd0550c3dc4f748750b668ca.png

2024-06-02 05:34:02

GM 💜🥜 https://image.nostr.build/35e64ed101abcdeefb4be5253fe50e16f3c9aea4dedff44b92d4355f7ea50c97.jpg

2024-06-02 05:24:06

Unbelievable how much money people waste on “throw away; buy new”…
Learn to build stuff, learn to fix stuff 💜

2024-06-01 19:28:08

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PS: This wasn’t in my any sense meant passive aggressively. I really do appreciate the exchange 🙌🏻 I simply do not have the time to continue it right now haha

2024-06-01 19:24:45

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Thank you for providing your perspective. 🤙💜

2024-06-01 18:57:49

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Lmao… I can not back down, as I never made this claim. Do you realise the post was about comparing custodial Lightning with Cashu? With custodial Lightning you can not have privacy EVEN if you are using Tor.
And claiming that @npub12rv…85vg would actively withhold this is just ridiculous…

2024-06-01 18:54:37

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A system that is inherently driven by accounts and authentication (like custodial Lightning) can not. That’s the point

2024-06-01 18:34:05

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I don’t know if I am missing the point here, but didn’t I just answer this?
Just like UTXO sizes are metadata in Bitcoin. The solution: Make sure that your is the same size as everyone elses. Most CoinJoin impl. did this

2024-06-01 18:30:46

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The wallet chooses the output size. The anonset is controlled by the wallet and there are actually already algorithms implemented that will increase the privacy of your “UTXO” set

2024-06-01 18:29:26

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But you can have that. Use Tor. Use a VPN. Some wallets already have it built in.

2024-06-01 18:20:58

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It’s not signatures, it’s blind signatures… but I’ll let you cook. How would a mint do that?

2024-06-01 17:32:46

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Thanks to Multi Mint Payments you can not only split the token across multiple amounts, but also multiple custodians reducing metadata leaks even further.

2024-06-01 17:19:15

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That’s why there is fixed amounts (imagine notes / coins) and the lower the amount you choose the better your anon set is

2024-06-01 16:32:13

When I started my LN journey I posted a Lightning Meme on Reddit every day for a few months.
Maybe now is the time for #Cashu memes? https://image.nostr.build/6c3cb9c98071be3b6b4cb2a601637396ddbc23ad5a05f8f36492d98e7a802869.jpg

2024-06-01 15:34:22

⚡️ these 🥜 #note1n4k…j0mx

2024-06-01 14:30:50

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95% custodial zaps… wow! That’s why there is npub.cash 🥜🔥

2024-06-01 12:53:01

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GM 🔥
What is the performance impact of verification vs. JSON parsing ?

2024-05-31 11:52:41

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Check out the API controllers and write some tests 🤙 https://github.com/cashubtc/npubcash-server

2024-05-31 11:51:24

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As long as your have a Blink account, yes. Blink is required as wrapper, as mints do not have WebSocket support yet.
Actually if you do I would really appreciate you testing it. If your are interested I’ll send you some “draft” instructions on setting it up

2024-05-29 05:40:15

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It is! One week of Mallorca before a month full of amazing ecash stuff 🙌🏻