If we Sapiens are so wise, why are we so self-destructive? - Yuval Noah Harari

Finally found my favourite AI stack: nvim + claudecode.nvim Configure claudecode.nvim to use an external terminal, then I can have Claude running on a second workspace, while diffs are still being rendered in nvim splits. I miss Cursor Tabs, but it’s not too bad actually.

Christmas came early this year 😍

Trigger Warning ⚠️ I had a very busy morning and no time to prepare proper breakfast. So I put a sweet potato and a frozen rib eye in the air fryer and went to shower. 15 minutes later I had a 7/10 rare (borderline medium-rare) steak with amazing potato wedges. Fat rendered nicely, proper sear is obviously missing, but definitely would do it again if time is tight.

Nostr is a superpower for SPAs... I needed a way for users to report issues in the new eNuts app. Of course I would prefer detailed issues on Github, but not every user has a GH account. Now there is a simple web form that sends a nostr DM with the issue report to me.

Had my first call this morning. Without having completed basic training all I could do was stand by and watch, but I learned so much already 🚒 View quoted note →

> Cashu has consciously positioned itself in this area of tension: not as a replacement for Bitcoin, but as a complementary layer. Bitcoin provides the global, scarce, and censorship-resistant foundation; Cashu builds on this to offer privacy, speed, and user-friendliness in everyday life. Together, they fill a gap that neither traditional payment systems nor blockchain alone can fill.

I decided that I’ll be doing less conferences in the first half of 2026 and spend that time on something completely unrelated. I think sometimes it’s good to take a step back and experience something new, to regain your focus. So I’ll become a fire fighter 🧑‍🚒

Fired a 6.5’ .44 revolver yesterday. Suddenly I feel like I understand Americans a lot better.

The Melt Saga in Coco is probably the most interesting piece of software I have written in a while. First of all sagas by themselves are also really cool, and I had a lot of fun writing the first one for the Send API. Now melt adds more complexity by needing to support different methods, that will have different behaviour. While the SendOperationService owned all behaviour the melt one does not. This is where I added the MeltHandlerProvider, a little piece of code that provides handlers based on the method used to the Saga. The saga will get the required behaviour from the provider when it needs to advance. This way each method can implement its own behaviour, and consumers can even add their own methods via plugins or at runtime.

PSA ⚠️ There has been report of data-loss when upgrading coco to the latest RC33! We are still investigating the issue, but for now you should not upgrade to this version. Unfortunately npm doesn’t let me plush the version, but as the RCs are alpha releases npm will not upgrade you without explicit permission

Sell kidney and get Cursor 200$ subscription?

Opus 4.5 (Cursor) cost is only reduced for another four days… what are you building?

Coco RC31 has been released! This new RC includes a bunch of bug fixes, as well as the long awaited send API. Sending tokens was fully refactored to use a saga under the hood, allowing for much better error handling and safety. It also allows users to preview transaction details before executing a send. If something goes wrong Coco will do it's best to recover the operation (and the sats). A nice side effect of the saga is that we now got real time updates for send operations as well! New send state events were added to the event hub and the History API now exposes "state" for send operations. The full explanation of the SendAPI can be read here:

Send Operations | Coco Cashu Docs

Cashu out of the box

"Before you change anything review this proposal critically" is a game changing prompt for me

PSA: npub.cash is experiencing some issue right now. This morning we had some DDOS-like activity that caused rate-limiting issues with Minibits upstream. Meanwhile npubx.cash is running fine and also has some protections in place to avoid this kind of issue. If you are currently using npub.cash, this might be a great time to look into npubx.cash. You can use it inside Cashu.me by enabling npubx.cash in the experimental settings.

Have you given Coco a try yet? It’s an out-of-the-box Cashu experience written in Typescript. Basically giving you a fully working Cashu wallet with just a few lines of setup code. Coco is in early stages so I’d love your feedback:

GitHub

GitHub - cashubtc/coco

Contribute to cashubtc/coco development by creating an account on GitHub.

Docs:

Coco Cashu Docs

Cashu out of the box

Building with opus 4.5 feels like driving a Veyron at full speed. You never got to your destination quicker, but at the same time you never spend 4$ in gas per mile

Wtf happened over the last few years… My wife is a smart shopper. She knows where all the deals are, does proper planning and meal plans etc. Regardless of that our grocery bill (2 adults, 1 child, 2 dogs) easily exceeds 1200€ (~1400 freedom coins) per month…

👀🥜