erik

> With multisig, there's so many things you can fuck up along the way.
like what? these days it’s quite easy to export the descriptor in a variety of formats.

2026-08-26 07:38:58 UTC

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what’s the benefit of adding a paraphrase vs multisig?

2026-08-26 07:28:43 UTC

seedphrases always felt insane to me. 12 words and if someone finds them they can steal all your money. please use multisig.

2026-08-25 14:07:21 UTC

"The computer industry is an industry that has become incredibly conservative from an advertising perspective. It is an industry where there's an obsession about product attributes that you can measure. How fast is it? How big is the hard drive?...that is a very comfortable space to compete in because you can say 8 is better than 6.
It is also very inhuman and very cold. Because of the industry's obsession with attributes there has been a tendency to ignore product attributes that are difficult to measure or talk about. In that sense the industry has missed out on the more emotive, less tangible product attributes."
- Jony Ive

2026-08-21 13:24:53 UTC

what a blessing it is to wake up and work with your friends on bitcoin projects everyday.

2026-08-14 18:40:03 UTC

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might be possible with nwc? or maybe there are other methods cc @nprofile…wh3a ?

2026-08-14 18:24:54 UTC

a fun one https://blossom.primal.net/76c94f5d9d073695c422314022dad2146082c367c90d44503293d983f657c15d.mp4

2026-08-13 11:05:03 UTC

working on an ascii vault animation transformation for cashu me restore flow. https://blossom.primal.net/f22a239ad73dd53a75c896c73d8d7fa48352b470750b47efee46d5db1cb8eb43.mp4

2026-08-12 22:20:32 UTC

too many private trackers still on accept on chain btc and random shitcoins for donations. they should accept lightning or cashu with auto melt to self custody in the background. i would love to work on this.

2026-08-10 08:38:42 UTC

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lastly i added a vertical progress bar on the left. user can press and hold then drag up + down to cycle through their wordlist. a little haptic when you tap hints that it's there. this is my favorite feature. https://blossom.primal.net/8049898d1d7961e0aa69af459be2a5d28442ca027a679d99e0249695f8bb9fa9.mp4

2026-08-10 08:37:26 UTC

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for manual entry i went word by word. enter a few characters and possible bip39 suggestions appear. paste option only available at start of the flow and disappears the moment you type a character. https://blossom.primal.net/78fd1a6232126f8dbb4a9427ebcaed7848f80cd0ad571a0f66021d7151afa901.mp4

2026-08-10 08:36:59 UTC

spent the last few days working on cashu me restore. we support automated mint backup over nostr. an nsec is derived from seed and encrypts your mint list then publish it to relays.
what that means for the user: when they enter their 12 words, they don't need to remember which mints they were using. we can fetch the mint list from the seed. https://blossom.primal.net/f3859edc8a98b5e5ad5a9d329ee076dd6ff11fe64aca63133b5d074b2451e44a.mp4

2026-08-09 08:37:50 UTC

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thank you. that took a while to get right. still need to fine tune it a bit.

2026-08-07 00:11:21 UTC

so much infighting in bitcoin lately (maybe it always was). sometimes it feels like the wu wei. i take comfort in that.
despite the vitriol i will never forget you guys 🫂.
https://blossom.primal.net/cae700e75c785a656c114ac976fd8b3bea09509f8de16d85adbbce025803c931.jpg

2026-08-06 23:03:14 UTC

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it’s a fixed list. it does ping to make sure the mints are currently online before populating though.

2026-08-06 14:51:59 UTC

polishing onboarding for cashu me. onboarding is special. it's the first chance you get to show the care you put into what you built.
https://blossom.primal.net/4f1f45f2f5b179a05effee85f00bbe9026e6d5cc7aa818a89a494505c63ff972.mp4

2026-08-05 23:11:24 UTC

ty to the rng response team. you are saints.

2026-08-05 20:51:31 UTC

https://blossom.primal.net/9fa3e0853a2b2f0de56f9c59ccb5b295df2afea5b93aa282ac5ea7020adbcfc1.png

2026-08-04 09:42:56 UTC

is pen testing bitcoin with chinese ai a game of skill? or is it more like a work of art?

2026-08-04 08:52:27 UTC

the galaxy brains are red teaming bitcoin and i'm over here making sure the cashu me error toasts don't look janky.

2026-07-27 08:51:50 UTC

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been thinking about it A LOT recently.

2026-07-27 08:35:11 UTC

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now! https://zapstore.dev/apps/com.cashu.me

2026-07-27 08:10:56 UTC

arm yourself. train yourself with the warriors eye. wage butlerian jihad against ui slop.
https://impeccable.style/slop/

2026-07-26 16:40:14 UTC

bitcoin is the natural progression if you grew up on private trackers and torrents. same exact ethos.
bitcoin is that version for adults. the stakes are higher and the philosophy runs deeper.

2026-07-24 14:23:05 UTC

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update: the @nprofile…uz3y support team and @nprofile…ypuv, are world class. they privately reached out and helped me solve the issue.
turns out it was a skills issue on my part. on july 9th i installed primal on an android device. this caused zaps to be sent to that wallet. no funds were lost. i was able to sweep the funds then restore my android primal instance with my seed phrase and now both devices and wallets appear to be in sync. issue should be solved going forward.
thank you again Primal!
#nevent1q…w2yd

2026-07-24 10:38:29 UTC

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can you link me to their website or tag their nostr profile? i can’t find them on the app store and i can’t search for them because i can’t find the search bar on primal.

2026-07-24 10:02:57 UTC

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what is wisp?

2026-07-24 08:26:02 UTC

my @nprofile…uz3y wallet hasn't received a single zap since july 9th. i get zapped but the money never comes in. nothing but problems since the 'upgrade' to spark.
it used to be one of my favorites. now it's slow, bloated, and broken. i'm literally just losing money at this point. what a disaster. it makes me so sad to have lost such a reliable wallet.

2026-07-24 06:39:04 UTC

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it just uses apples default widget component. right now i’m fighting to get it to update as soon as a new doodle is received.

2026-07-23 21:20:14 UTC

launching my second app today: zeile.
it's another simple one. you pair with one person. send a note or a doodle, and it lands on their home screen via widget. 100% free. iphone only.
https://blossom.primal.net/3c3f62296b03af61b5a07ede27d3adf5f9dd8ef595b509575d06a58385bba150.mp4
no accounts, no user ids. just a code generated at setup. one of you shares it, the other types it in, and you approve.
it's simple and there are others like it. but this one is free. nothing behind a paywall. plus i put a little extra care into the ui.
had a lot of fun building and testing it. check it out:
http://zeileapp.com

2026-07-22 06:31:23 UTC

bip110 is sedevacantism for bitcoiners.

2026-07-22 05:30:10 UTC

you must respect the work. you should put in a lot of effort to show you respect the work. if you don’t take the time to do so why should other people take the time to use your product?

2026-07-21 21:17:17 UTC

cleaning up recent transactions history on cashu me. old version on the left, new version on the right. https://blossom.primal.net/2d28fef08dfc6af33b8854dda098cd8397d9377702c85c4cd61700436963409e.png

2026-07-21 09:19:16 UTC

cashu tap to pay now supports jacobin conjecture counterexamples. https://blossom.primal.net/74f96d0e508c6e61d83e2190ab3ed3cd49da826b3eaa71de2527cd5f923fd8be.mp4

2026-07-19 22:40:00 UTC

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i think so, but i'm not sure. i usually test with the fakewallet testnut. testnut.cashu.space

2026-07-19 22:39:17 UTC

did a big sweep of cashu me tonight. found a lot of inconsistencies between ios and android on bolt12 and on chain. spent the day fine tooth combing to get parity between the two.
https://blossom.primal.net/f741d543ba08efc8c58b9e1d9d1036c103e1eb2c110950bb0208b548826e95a3.jpg
onchain is also closer to parity between ios and android. android wasn't querying the block explorer from the onchain receive. now both poll every 30s and both ask the mint if the quote is paid.
https://blossom.primal.net/5043d41161129beb80006fc4151d1c28448d6a5f785e08f4217cf7d3eb27f2e7.jpg
try it here: http://cashu.me. cashu me is in public beta right now. would love feedback from anyone testing. your feedback is a gift.

2026-07-19 11:27:44 UTC

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haven't had a chance to run bey yet, but i am looking forward to! as for the clouds, i honestly stole it from a random inspo on awwards i think it was. i didn't realize bey was also using clouds.

2026-07-19 08:32:35 UTC

gm. have you heard the good news? cashu me is now fully android and ios native. public beta open for you.
https://blossom.primal.net/4138bc20819da80cd68fe4c104ee5004b42b06cf9ec9b631ec8d756e48f2807a.png
https://cashu.me/

2026-07-18 22:32:21 UTC

the cliche 'never judge a book by it's cover' is true. this was exhilarating. https://blossom.primal.net/8ce70e509b291d26c96373e9c59a86ec73225b51535c72671f99c904a96d7baf.jpg

2026-07-14 07:01:05 UTC

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yes, we’re working on that now.

2026-07-13 19:13:23 UTC

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what's the back up system they created?

2026-07-13 19:11:57 UTC

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you can find direct links to the ios testflight and android apk on the new http://cashu.me website. above the clouds is where the nuts are untraceable. https://blossom.primal.net/52b49574c722e3f97c658b596b93fe1dc096c49522b3290a76cf5366e6053e15.mp4

2026-07-13 19:11:07 UTC

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go break it. find the ugly edgecases and weird bugs. whatever you find dm me or reply here. we'll be fixing this stuff in real time. https://blossom.primal.net/caaae26bfb7c4adf3a1c3d4689360b4399f02daf0cf8ae33f67aa7f27699f67c.jpg

2026-07-13 19:10:20 UTC

cashu me is now native on ios and android. lots of screen time went into this one and I had a blast building it. today, the public beta is here.
still a lot of work to do. life time of polish to apply and jank to fix, but perfection is the enemy of good. https://blossom.primal.net/2c5372e24cada80567e5eb955d0b0ed8da3158a713ed4fa5652fca73220a064f.mp4

2026-07-11 20:30:14 UTC

soon ™️ https://blossom.primal.net/524f63b0a6ff2982cab8045da731911160a4c300ff5662395d71eefede326ed9.jpg

2026-07-11 12:27:50 UTC

testing cashu me native across multiple devices today. it's running smooth even on an 8 year old iphone xr on ios 18.
bitkey not relevant. i just keep it around because it's beautiful. https://blossom.primal.net/fd5d900bbe32782f7a124ded9df794dc90965440025ae96659924ebc86a737ad.jpg

2026-07-09 23:34:48 UTC

trying to make native android feel as elegant as swiftui. to borrow a phrase from satoshi, it's bloody hard. https://blossom.primal.net/c66a74965396c46d7f6cdc223c90cd7810791cdc0a03375b27b945675a5aad72.mp4

2026-07-09 10:07:39 UTC

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usually this is a 1/3 bottom sheet. i want to skip the this confirmation entirely and go straight to redemption details. we can use clipboard detection to bypass this step.
raw token string tells user nothing useful. could put this behind a more options setting in confirmation dialog. https://blossom.primal.net/cd34dcbf840f9fe21ce785ffbd722804ee448f96c7013a7e9ac615ae294d919c.png

2026-07-09 10:01:03 UTC

working on the ux of sending and receiving custom units (usd/eur/sek etc...) on cashu me. https://blossom.primal.net/bad3dc69995f4d6d677e271763276818a801ace766248b5ad32cee749cf272e7.mp4

2026-07-08 23:51:02 UTC

i just paid 8 cents for asking fable to "commit and push". lesson learned.

2026-07-07 17:51:30 UTC

there was a period from 2008-2010 where you could accurately judge someone's degree of metacognition based on how they felt about lil b.
you either got what he was doing: embracing the speed and absurdity of memetic culture by breaking the 4th wall of rap or you didn't see it. https://blossom.primal.net/2212422c6c8cc3e4239575fdbca0cd204cdfafb2f079f113e33a9c12de664239.mp4

2026-07-07 10:04:43 UTC

cynicism and pessimism are traps that some people never escape.

2026-07-06 22:29:00 UTC

sometimes at bitcoin conferences i catch myself wondering how many ppl here would significantly lose something if this project fails.
how many of you will will lose your entire retirement? a huge chunk of your net worth? how many of you actually live this? i know a few.

2026-07-06 12:17:29 UTC

working on a flow for paying a cashu request that only accepts specific mints.
in this example the user selects one of the payee's specified mints and it processes the payment in one sweep.
inb4: why not just use ln? this paticular flow assumes a cashu request was scanned. if it was a bolt11 invoice or bip321 it would default to a ln payment and this would be very simple.
i'm smoothing the animations next. they're very jarring and unpolished right now.
https://blossom.primal.net/a3a9734b655bd220983f46de591823c5d8cb12cc36dc377aad9cccace32ad6ee.mp4

2026-07-03 14:50:45 UTC

receipts used to be for you.

2026-07-02 07:55:45 UTC

i love phoenix. but even after years i've never built muscle memory with it. imo the receive options are overwhelming. trying to consolidate on cashu me. such a hard problem to solve.
i think one thing phoenix does right is immediately defaulting to an amountless bolt11 invoice with the qr displayed. it's nice to instantly provide the payment affordance after tapping receive. we can do a better job of that on cashu me.
https://blossom.primal.net/7c80fe9d8db369a020cd9ec23a12237ea7ebfd7023b0ea915972672f89ddef5c.jpg

2026-07-01 22:41:39 UTC

it's kinda funny that cash is anonymous by accident and now we have to make digital cash anonymous on purpose.
for some people this is controversial. so we'll do it controversially.

2026-06-30 07:53:35 UTC

gm. you don't owe a database your personal info just because you bought a coffee.

2026-06-29 20:26:19 UTC

“oh my god, that's such a beautiful line! familiar faces i've never seen, i love it!”
ifykyk

2026-06-29 10:47:43 UTC

been working on a unified send flow for cashu me. one field. paste a bolt11, bolt12, ln address, cashu request etc...
or scan someone's key to lock ecash to them via p2pk. you can review your own keys in settings now. https://blossom.primal.net/e6e46771b9ebac8065b613f1fae922f2be2662df6677404320490c60f0e0a892.mp4

2026-06-27 22:47:37 UTC

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you can also just edit the code by hand too. i rarely do that though. i usually have multi agents and worktrees going at the same time, so i always have some tasks to keep me busy.

2026-06-27 22:44:29 UTC

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a good design system setup with /impeccable init should define your spacing well enough that it's rarely an issue. but occasionally if i want custom spacing or a custom element, i'll take a screenshot of that section and describe in detail how i want it to look.
if it's super detailed i'll use apple dictation to record myself speaking to it. i can go for like 4 minutes describing the change, then ask it to grill me to confirm it understands and surface any edge case questions.

2026-06-27 22:39:38 UTC

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i just type a detailed prompt.

2026-06-27 22:36:19 UTC

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default is usually bolt11.
receive -> enter amount and press continue -> see bolt11 ln invoice.

2026-06-27 22:35:34 UTC

finding myself getting comfortable with my current vibe coding / ai design flow.
not a great sign for growth. never get comfortable with your tools. want to put my current setup to the side and try new stuff.
tools i find myself constantly reaching for:
claude cli
impeccable plugin
grill me skill
mobbin mcp
i usually cycle through some combination of these to build a design. what are you using?

2026-06-27 08:39:28 UTC

when a cashu mint supports onchain + bolt11 + bolt12 you end up with four ways to receive. here's a wip on how i'm thinking of laying them out in cashu me. no jargon. only descriptions telling you when to use it.
the two bolt12 offers became "reusable" and "flexible". https://blossom.primal.net/6a72f21fb28580a894f013fd1145e82072661b1b41ab846a8d0404546ef00126.jpg

2026-06-26 23:47:22 UTC

ot icloud backup + recovery working on the next cashu me swift build. restoring via icloud is pleasant experience.
usual caveat emptor on cloud backups but damn it feels good. https://blossom.primal.net/501f9f4ae13c9c432159cce5d858378caed3434cb18a98f0742ff818dddf23fd.mp4

2026-06-22 17:08:11 UTC

every hour spent building extractive bullshit is an hour stolen from building productive tools.
you can spend your time gamifying someone into riding a scooter more or you can build money that the state can't censor and communications it can't surveil.

2026-06-21 22:56:30 UTC

some notes and quotes i wrote down during trevor paglen's berlin talk tonight.
"palantir is not so much a military technology company, it's a vision technology."
"slop is the media that the attention economy forces people to create."
"do you subscribe to the sublime idea of things that are beyond yourself?"
"this is where it turns to magic. instagram. telepathy. some of it feels supernatural."
[context: talking about getting a targeted ad right after having a conversation about that exact thing.]
topics to follow up:
- vilém flusser on technical images
- the politics of llm training data
- cia & russian psyop manuals
buy his book: https://www.versobooks.com/products/3477-how-to-see-like-a-machine
https://blossom.primal.net/779b26a15f57b6f03b405bf27fc1627395fe682f0135e60afd7a1fcd60b12fed.jpg
https://blossom.primal.net/6ff9b7b0dffd15b6fa8fe6d91f99852848cc8b9872ce8a1cd9c868ee4d3758c3.jpg
https://blossom.primal.net/b3e6bffed42900a171a33cbc6931bbedd85996dedb205b10807d0ebff642202c.jpg

2026-06-16 12:12:22 UTC

everything i love about cyberpunk is found in neuromancer and ghost in the shell.

2026-06-13 15:21:15 UTC

the gov just restricted fable 5 under export control law. we've been here before. in the 90s strong encryption was classified as a munition and placed under arms export controls. the cypherpunks fought and won.
read the cypherpunk library.
https://www.cypherpunklibrary.com/

2026-06-10 14:20:53 UTC

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what about pdf/epub storage?

2026-06-10 12:53:47 UTC

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very cool project using @npub17fz…9yxv
#nevent1q…8stx

2026-06-10 11:51:42 UTC

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this is sick. how does it handle updates?

2026-06-08 21:20:24 UTC

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i found peter's 'your secret right to cash' very focused and motivating.
https://www.cypherpunkbooks.com/book/your-secret-right-to-cash

2026-06-08 21:18:58 UTC

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this is great idea! i'll look into expanding this as another feature.

2026-06-08 14:25:38 UTC

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will you be selling at freedom tech in prague? i will glady by one if it comes with a digital version i can upload.

2026-06-08 10:23:16 UTC

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thanks james! going to be adding to it soon.

2026-06-08 09:51:05 UTC

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thanks! i'm working on expanding it. send any recommendations.

2026-06-08 08:14:03 UTC

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excellent resource. i’ll see what’s free to copy and share.

2026-06-08 08:08:27 UTC

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i’m not going to respond to your giant angry screed. i hope being angry in the internet is working for you.
have fun playing with your monero.

2026-06-08 08:01:16 UTC

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beautifully designed site!

2026-06-08 07:35:11 UTC

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you should build your own instead of crying.

2026-06-07 22:38:12 UTC

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send them right here!

2026-06-07 22:27:52 UTC

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check it out: https://www.cypherpunkbooks.com/

2026-06-07 22:16:24 UTC

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just added 21 lessons. https://www.cypherpunkbooks.com/book/21-lessons

2026-06-07 22:03:14 UTC

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thanks! i wanted it to feel friendly.

2026-06-07 20:36:54 UTC

weekend project: cypherpunkbooks.com
one shelf for books, manifestos, essays, etc... built it for myself to keep everything I want to read and everything i love in one place. https://blossom.primal.net/9ef8a7d1cdb9a9edb83d8c475acb4b998895c64f9137637849a7aa4f70f157da.mp4

2026-06-05 10:44:00 UTC

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this is is bit too reductive. but i agree that they need to think more deeply about this.

2026-06-05 10:34:54 UTC

i dislike how taboo discussions around money are in leftist activist circles. i see a lot of hand waving. 'money won't be needed in a post capitalist world.' 'money is the root of evil.' 'money is exploitation.' then the conversation ends.
i wish it didn't go like this. money is not inherently evil. it's just a technology. just like language. a technology for transporting value across space and time. that's it. it doesn't have to be exploitative.
the current monetary system is deeply corrupt. imo it's the source of a lot of the world's problems, but the answer isn't to dismiss it. we should strive to build a better one. if the current implementation is broken fork and build your own.

2026-06-04 20:55:24 UTC

i'm being one shotted by yanis varoufakis' technofeudalism. i can feel the dunning kruger setting in.

2026-05-29 13:31:00 UTC

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a solid dude. can confirm.
#nevent1q…crzu

2026-05-15 08:11:57 UTC

really enjoyed this from matt balez. a few things stuck:
i learned subcent api fees via usdc on base is easy. a few weeks ago in vegas i highlighted this a unique value prop for bitcoin agentic payments. i was wrong.
still true that stablecoins are inherently censorable, and freezable at any time. they don't optimize for human freedom. stablecoin privacy is very spooky. the fact that you can feed an agent's etherscan history to chatgpt and id the merchant should scare everyone.
"open source AI deserves open source money" is a banger. how do we meme this into existence? watching steinberger go anti "crypto" was rough.
surprised usdt on lightning wasn't covered. i know usdc has the regulatory momentum rn but @speedwallet 's wallet's usdt/lightning ux is quite good. they address the volatility and short term usd obligation point all on the ln network. we can have a convo about the tradeoffs re censorship resistance, but i think bitcoin builders can learn a lot from speed.
https://spiralbtc.substack.com/p/the-best-money-for-agents

2026-05-13 09:05:51 UTC

spoke at vegas a few weeks ago on lightning and ecash. @nprofile…8ayf moderated, @nprofile…ls58 and Alex held it down on @nprofile…zjpe and @nprofile…3uh5 .
fun one. thanks for having me.
https://youtu.be/4iwEBvEByA4

2026-05-11 19:29:49 UTC

gm @npub18am…p424

2026-05-11 19:23:10 UTC

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thanks for the soap!

2026-05-11 16:46:10 UTC

thanks @nprofile…e8cp
https://blossom.primal.net/4f3c1c749e24fa2940dc1ddf1d18ddf8d1a8888f08c08f678322f31ba3fc650c.jpg

2026-05-07 05:03:01 UTC

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wow thank you. i’m donating this straight to samurai.

2026-05-06 14:06:29 UTC

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what are you building? what are you doing?