Riga round four.
erik
erik@primal.net
npub1zqsu...cqrs
Bitcoin Product Designer @ Hoseki. Human Rights Foundation grantee working on ecash.
When I’m on Nostr I feel optimistic about the direction we’re heading in.
Running Dia browser, but having issues with Nostr.
Who has Lugano recommendations? Send them.
I prototyped a fully functional Bitchat Cashu wallet. From Figma wireframes to Kotlin code running live on Android. Pretty excited about the workflow. Sharing my exact flow in case it helps anyone else.
why would anyone do drugs when they could just vibe code a cashu wallet?
Woke up to a screenshot on TechCrunch. Not sure if anyone reads Tech Crunch anymore but LFG!

Cashu - Open-source Ecash

TechCrunch
Jack Dorsey pumps $10M into a nonprofit focused on open source social media | TechCrunch
Dorsey's initial investment has gotten the new nonprofit "andOtherStuff" up and running, and he worked on some of its initial iOS apps.
Bitchat reminds me of the feeling of coming from school, jumping on IRC, and loading up Counter Strike 1.6.


Here’s an update on what I’ve been working on and what's been happening: grants, hackathons, Cashu, Fedimint, Sovran, and more.


#10 Grants, Hackathons, & Cashu Design
Kicking off summer with design, vibe coding, and an unexpected hackathon W.
TOMORROW, Thursday July 10th at 14:00 UTC the @Bitcoin Design Community will be hosting a design review of the @Fedimint web wallet! Join us!
Call details:

GitHub
Fedimint Web Wallet Design Call #1 · Issue #807 · BitcoinDesign/Meta
UTCTime: 2025-07-10 14:00 UTC Duration: 1h Agenda Welcome & Call Goals Target Audience & Primary Platform (Web vs Mobile) Key Features & User Flows...

Don't forget to put this on your calendars. Next Thursday, July 10th the @Bitcoin Design community is hosting a @Fedimint web wallet design review call at 14:00 UTC.
We're going to be taking a look at a new Fedimint wallet built during the summer of bitcoin program and discussing where the design community can jump in and help.
Call details: 
Call details: GitHub
Fedimint Web Wallet Design Call #1 · Issue #807 · BitcoinDesign/Meta
UTCTime: 2025-07-10 14:00 UTC Duration: 1h Agenda Welcome & Call Goals Target Audience & Primary Platform (Web vs Mobile) Key Features & User Flows...
During the @BTC Prague Dev/Hack/Day I saw @Dario learn a lot from watching people interact with Macadamia in ways previously unknown.
@Skyler and @Sahil Chaturvedi are very spot on here.
We must remain focused on improving ecash design! The @Bitcoin Design community is taking a look at a new @Fedimint Web Wallet in progress.
Harsh has been building it during his Fedimint internship, and we’re hosting a call to learn more about the project.
Join us July 10 at 14:00 UTC.
Call details:
Fedimint Web Wallet:

GitHub
Fedimint Web Wallet Design Call #1 · Issue #807 · BitcoinDesign/Meta
UTCTime: 2025-07-10 14:00 UTC Duration: 1h Agenda Welcome & Call Goals Target Audience & Primary Platform (Web vs Mobile) Key Features & User Flows...
GitHub
GitHub - Harshdev098/haze-wallet: Haze Wallet, a fedimint web wallet using Chaumian Ecash to custody and transact bitcoin privately
Haze Wallet, a fedimint web wallet using Chaumian Ecash to custody and transact bitcoin privately - Harshdev098/haze-wallet

Any job where you get to work with your heroes is a good job. I’m very fortunate to have a good job.
A quick summary of the Design-a-Note contest we ran as part of the @Bitcoin Design Designathon.
We had community members design printable Cashu banknotes, we brought some of the designs to @BTC Prague Dev/Hack/Day and handed them out loaded with ₿21.
Special thanks to OpenCash for sponsoring this track, @gandlaf21 for building Brr, Tom Badley for judging, and everyone who submitted a design.
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