Damus
Einundzwanzig profile picture
Einundzwanzig
@Einundzwanzig

Einundzwanzig, der Bitcoin Podcast 🎙 Finde uns auf YouTube, Telegram und in deinem Podcastplayer ☣️🦬🧡

Relays (6)
  • wss://relay.primal.net – read & write
  • wss://purplepag.es – read & write
  • wss://nos.lol – read & write
  • wss://relay.kamp.site – read & write
  • wss://tw.purplerelay.com – read & write
  • wss://relay.bitmapstr.io – read & write

Recent Notes

Einundzwanzig profile picture
He Fettbacke :-), wohin soll der Bademantel geliefert werden?

Oder wir machen es am besten mit einem code, da kannst ihn dann selber kostenlos bestellen.
Einundzwanzig profile picture
Vom 28-31.Mai 2026 findet die Zitadelle in Obonjan statt, der Vorverkauft startet am 21 Okt im 21:21 Uhr.

Falls ihr diese Note zur Folge 300 teilt und zapped habt ihr die Chance zwei Tickets zu gewinnen und direkt von eurem Zelt aus Meer zu schauen.
Hier Bilder dazu:



Einundzwanzig profile picture
🚀 Today we’re supporting @npub1q67f4...
from Bitcoin-Safe.Org with 1,000,000 satoshis for his work on Bitcoin Safe – a beginner-friendly multisig wallet for Mac, Windows, Linux, or anywhere Python runs. Why this matters 🧵👇

🔧 Development of Specter Desktop is no longer a priority at Swan. A vital open-source wallet has essentially become abandonware – leaving a painful gap in the Bitcoin ecosystem.

💡 Andreas, a former Specter developer himself, recognized this gap – and with Bitcoin Safe created a brand-new solution that already goes beyond what Specter offered.

🔒 What makes Bitcoin Safe special:
An open-source wallet focused on multisig and hardware wallet integration. It combines the strengths of Electrum, Specter, and @mempool – with Nostr functionality added in.

🧙 The beginner-friendly multisig wizard makes secure Bitcoin self-custody accessible – even for non-technical users.

🖼️ The graphical transaction display isn’t just functional, it’s beautiful. Even better than Sparrow! For Bitcoin artists like Fractal_Encrypt and @npub1yp7wf... it can be exported as vector graphics.


🌐 But the real gamechanger is the Nostr integration – enabling secure, decentralized PSBT exchange between cosigners.

🌐 It’s comparable to Electrum’s Cosigner Pool or nunchuk's proprietary chat – but here: fully open source, set up in seconds, and run via encrypted Nostr DMs.

🔗 Not just PSBTs – UTXO labels can be shared via Nostr too. A key building block for collaboration in multisig setups.

🌍 We’d love to see other wallet clients adopt this Nostr sync functionality as well – to increase client diversity, especially for organizations with varying needs.

🛠️ Bitcoin Safe delivers this critical workflow entirely open source – built on the decentralized Nostr protocol. A milestone for sovereignty in the Bitcoin ecosystem.

🤝 Open-source Bitcoin projects are chronically underfunded. That’s why it’s so important to support developers like Andreas who push boundaries and define new standards. Bitcoin Safe 💪

📣 Our support of 1,000,000 satoshis is meant to send a message:
High-quality open-source development deserves funding.
2 out of 5 cosigners signed this transaction using Bitcoin Safe. Who’s next?


🌱 Follow @npub1q67f4... and check out the project.
Join the Einundzwanzig Association and suggest other projects worth funding.
Open source stays alive – with your help.
Einundzwanzig profile picture
🔥 1/ Excited to announce: We're donating 2.1M sats to @nprofile1q... and are bringing 21 Alby Hubs to our local communities! This is how we're empowering Bitcoin adoption across German-speaking regions 🧵



2/ Since we started as a humble podcast in 2019, we've grown into a decentralized network of 243 Bitcoin meetups. Our community keeps building, learning, and stacking together! 🎙️🤝



3/ Through our association, we're committed to preparing German-speaking regions for hyperbitcoinization. Events, YouTube content, magazines, merch - we're building the complete toolset for Bitcoiners 🚀



4/ Why AlbyHub? Because it's everything our local communities need: A self-custodial Lightning node that anyone can use. Simple interface, powerful features, and ready for developers ⚡️

5/ What excites us most: Alby Hub lets our meetup organizers create sub-wallets for their communities. This means easier onboarding and better connection between local Bitcoiners! 👥

6/ Our vision: Every EINUNDZWANZIG meetup becomes a hub for Bitcoin adoption. With Alby Hub running on Alby Cloud, we'll have 24/7 reliable nodes ready for the circular Bitcoin economy 🌍

7/ This isn't just about 21 new nodes - it's about empowering our communities. Each Hub will help local meetups build stronger connections and bring more people into the Bitcoin ecosystem 💪

8/ Supporting open-source projects like @nprofile1q... aligns perfectly with our mission. Together, we're making Bitcoin more accessible to everyone in the German-speaking world! 🎯

9/9 From podcast to community, from meetups to nodes - we keep building. Join us at one of our local meetups and be part of the journey! ⚡️