Justin

My friend built a strategy called Military Incremental Complex, which just launched on Steam today. You can build up your army by making bullets by hand, then with machines, and then upgrading to entire factories. It's pretty fun and there's a ton of content in it. Check it out! https://store.steampowered.com/app/3469750/Military_Incremental_Complex/

I went to a local "Open Source" happy hour this evening. There was panel on how "AI is impacting enterprises" and they mostly focused on the dangers of how AI might take everyone's job. Lots of discussion about enterprises, board members asking about "AI Strategy", and how to impose guardrails for safe AI use. Umm what exactly does that have to do with Open Source Software? I don't think any of the panelists mentioned the words "open source" once. Frankly not surprising, but still eye opening to see the disconnect that the Bitcoin ecosystem has from the broader tech community. Open source is more than just dumping code on the internet.

Paying for beer using Ecash App on a Square terminal https://ecash.love https://blossom.primal.net/9d2221cb01cc712d5aa962e68255511e70c3a15dc9351505e86fc86891f8181c.mp4

I'm curious what Nostr thinks of privacy vs auditability in ecash mints. In Fedimint, all of the Bitcoin is held in an onchain multisig that is controlled by the guardians. In most deployments, this is a 3/4 (but it can be larger), which makes it painfully obvious onchain to third party observers. The UTXOs that a federation controls is also not private, they can be found by scanning the mint's history (which is public). This can be seen on https://observer.fedimint.org/ or using Ecash App (https://ecash.love). I think it is a nice feature to be able to see onchain all of the UTXOs that a federation holds (this could make something like proof of reserves easier). Now, in a world where Fedimint has a taproot wallet (instead of P2WSH) and can use FROST/ROAST to sign peg-out transactions, it is no longer obvious onchain to third party observers which UTXOs correspond to a federation, since they can be spent using the keypath which looks like a normal taproot single-sig spend. However, as mentioned above, the UTXOs for the federation are still public, so a "fedimint-aware" third party adversary could still scan the mint's history and figure out the UTXOs. I suppose we could come up with a scheme to keep peg-in UTXOs private from third party adversaries, which (with FROST) would have the benefit that it would be really hard to use onchain data and mint history to determine if a user is using a Fedimint. But this would come at the cost of easy auditability.

Fantastic TabConf. Sad I had to leave early. My favorite moment was when someone asked nostr:nprofile1qqszrqlfgavys8g0zf8mmy79dn92ghn723wwawx49py0nqjn7jtmjagppemhxue69uhkummn9ekx7mp0qy08wumn8ghj7mn0wd68yttsw43zuam9d3kx7unyv4ezumn9wshsud80st what his go to market strategy was

Pumped for TabConf this week! I'm giving a workshop tomorrow at 12:30pm demoing Fedimint + Iroh. We will be setting up Mutinynet federations using Android phones. If you're there stop in and say hi! https://evento.so/p/evt_94BoyvNoLxnTViJN

Landing page for https://ecash.love just got a face lift. Go check it out!

Just submitted a talk/workshop for TabConf! Give an upvote if you want to see it. Hope to see everyone in Atlanta https://github.com/TABConf/7.tabconf.com/issues/83

RIP OZZY

Curious what Nostr thinks about this idea: A Fedimint module to be a "maker" on JoinMarket. A federation could earn fees (or the forbidden word "yield") on the backing reserves of the Fedimint. Currently the federation's funds do not move unless there is a pegin or a pegout, and the idea would be to put this capital to use in a non-custodial way. Could provide an incentive for running a Fedimint. credit: nostr:nprofile1qydhwumn8ghj7cmgwf5hxarsd9kxctnwdaehgu339e3k7mgpzamhxue69uhkxun9v968ytnwdaehgu3wwa5kuegqyz4k5ul9r7jlxyw5qsu5xzd2xcgkqr73n5l8zy5wrma0rkqunv0m2gglx6y

New Fedimint FOSS wallet inbound! Still finishing up all the features, like onchain and Lightning Address, but below is a sneak peak at the wallet. Shooting for a release later this summer or in the early fall. Desktop and Android support, iOS at a later date. What other ecash or Nostr features should we include? Feedback welcome!

I am interested in purchasing some "smart home" devices for my house, like cameras and sensors. But I'm not really thrilled about using a cloud service or some server that is going to track my data. Is anyone familiar with any low-friction self-hosted alternatives?

We're doing trivia tomorrow at the Minneapolis Bitcoin Meetup! We will have a mixture of prizes, including a Bit Axe and a Minneapolis branded seed signer. Nostr gets the sneak peak at the format and scoresheet that nostr:nprofile1qyx8wumn8ghj7cnjvghxjmcpz4mhxue69uhk2er9dchxummnw3ezumrpdejqqgp0859a0nnv6f050gh5kgmaf2erevajmzwlqvkjzkrguq8288vvhsaj4ahn created

Minneapolis BitDevs is happening this Tuesday! Free food and drinks will be provided. We will be arguing about OP_RETURN, discussing SwiftSync, partitioning mempools, and more. Happy hour at Indeed Brewing afterwards. When: Tuesday May 13th 5-7pm. Socratic Seminar starts at 5:30. Where: Improving Inc in Minneapolis. See website for details. Agenda: https://bitdevsmpls.org/2025-05-13-socratic-seminar-27

Myself and other open source contributors are building a new Fedimint wallet. It will support multiple mints, NIP87 mint discovery, and connecting to federations via Iroh. Ideally LN Address and NWC as well. What should we name this wallet?