Râu Cao ⚡

Traveling full-time since 2010. Working on open-source software daily. Currently working on a Maps app with Nostr integration for place photos (and place reviews coming soon): https://marco.kosmos.org

Public Key

npub1raustrrh5gjwt03zdj8syn9vmt2dwsv9t467m8c3gua636uxu89svgdees

NIP-05 Address

[email protected]

Profile Code

nprofile1qqsp77g933m6yf89hc3xerczfjkd44xhgxz46a0dnug5wwagawrwrjcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds9dzzl4

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1raustrrh5gjwt03zdj8syn9vmt2dwsv9t467m8c3gua636uxu89svgdees

Show more details

Last Notes

2026-08-27 20:08:05 UTC

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Nice weather, but that's some soul-sucking architecture.

2026-08-27 17:32:05 UTC

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By the way, you can also zap photos now (but others zapping yours isn't shown in the UI yet). And there's a list of all your photo contributions available from the app menu now.
Starting to feel pretty good in daily use.

2026-08-27 17:29:32 UTC

Just published a new version of Marco with basic spam protection:
You can now mark read relays as trusted in order to show any and all content from them by default. Content from untrusted relays is only shown automatically when it's your own, or from a followed pubkey; otherwise you have to explicitly reveal the photos via link in the place details.
https://blossom.kosmos.org/bba345beb3bd66f000a4105eff038b647af389566bcc4085a467529dcaac21c9.png
https://blossom.kosmos.org/ccf3dd9374a8803cc0cccabb1a14a226654aa9325498c00e232c96ac63088172.png
#nevent1q…hls0

2026-08-27 00:34:20 UTC

Tried out Qwen 3.8 VL 14B for detecting photo contents and the results were absolutely brilliant. I think I have a viable path to automated moderation for place photos in Marco now, allowing new Nostr users to submit map content without having to have an established reputation yet.
Also, I came up with a neat design for configurable relay trust, i.e. show all content from trusted (private and/or moderated) relays, but only personal and WoT content from untrusted ones. Tuning some last UI bits for that, deploying tomorrow.

2026-08-25 03:39:40 UTC

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Do not anthropomorphize the technology. They seem incredibly smart, but they're still just autocomplete on steroids. It's very easy to forget that fact.

2026-08-24 13:17:10 UTC

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There is no one "alternative to Google", only one for each product. And there are plenty good ones for most of them now.
I haven't used Google Search in ages and been entirely off GMail for over a decade. Translate is indeed amazing, but will soon be obsolete (or at least an easily self-hostable commodity).

2026-08-23 23:34:48 UTC

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Much appreciated. I will take good care of this learing institute!

2026-08-23 20:27:01 UTC

GM
https://blossom.kosmos.org/7b4563e8b18fd2876e2534446b0cb47af3bc0f9d0770193f069c149ef87f1f03.jpeg

2026-08-23 18:37:56 UTC

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That's what a spammer would say. With MASTER, everyone has to store Mike's notes, because he's the only person who wasn't on the island!!1!

2026-08-23 18:36:36 UTC

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This sounds interesting! Is there some kind of online university where a certified guru could teach me more?

2026-08-22 20:43:52 UTC

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Interesting. Do you have any base instructions mentioning removals or refactoring?

2026-08-22 20:27:17 UTC

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The way he cracks out the floppy disks at the end...👌

2026-08-22 16:30:47 UTC

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Proof of News, because intervals aren't regular enough. Hilarious.

2026-08-22 03:38:42 UTC

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Soulseek is alive and kicking. And Nicotine+ is a great client for Linux.

2026-08-21 20:12:46 UTC

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Not worth it IMO. Too opinionated, and some parts just feel a bit foreign to Linux. To each their own, of course.
I also know some people who thought this might finally bring them to Linux, but some vanilla GNOME desktop would probably have done a better job for them.

2026-08-21 14:02:51 UTC

In Alby, when first signing a Nostr event for a new domain, it offers some beginner-friendly options for how paranoid you want to be about signing. One of them is "Let's be reasonable".
Apparently, someone thought it's reasonable to allow arbitrary apps to auto-sign kind 1 events, which I find entirely unreasonable. So, if you also use that extension for Nostr, and you also don't want some vibecoded thing to auto-post to your timeline, here's your warning.

2026-08-20 15:42:06 UTC

Hilarious bug report:
> Steps to reproduce:
> 1. Burn money and the planet by wasting G/CPU cycles on make-belief stuff
> 2. Try to monitor that errand using zeromq
> 3. Fail to see the errors of your way because bitcoin isn't listening on zeromq
https://gitlab.archlinux.org/archlinux/packaging/packages/bitcoin/-/work_items/5

2026-08-16 15:41:09 UTC

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The post I originally replied to had already refuted your absurd claims in clear terms, and you were unable to bring forward any counter argument specifically addressing it in your entire tirade.
If anything has been proven, it's that this badly planned soft fork, which never had any real support among virtually all of the ecosystem, has lost precisely because posts like yours have been the quality of debate during this entire drama, similar to Kratter's absurd videos and conspiracy theories. It takes much more support to change consensus rules, and extortion by "mandatory signaling" is not how you convince the ecosystem of your genius ideas. Much less so, when they don't solve the problem at hand and are only temporary by design.
Now, you can keep yapping and whining about how everyone outside of your cult is corrupt and conspiring against you, or you can simply accept reality as it is, move on, and next time you want to change consensus rules, you do it the hard way, same as the rest of us have to.

2026-08-15 02:09:10 UTC

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Your tirade makes neither a good argument, nor an interesting conversation. It's just more rambling and repeating of BIP-110 propaganda narratives. Good bye.

2026-08-14 04:06:31 UTC

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It's one of many issues where we have slow but steady progress towards a better situation. DATUM and Stratum v2 are both helping with this.
The idea that mining is so centralized that you can simply do phone calls to the CEOs of a handful of corporations in order to control what every single miner submitting work to every single pool chooses to do is so far removed from reality that saying it out loud immediately disqualifies you from rational discourse.

2026-08-13 03:33:00 UTC

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delulu

2026-08-09 19:58:55 UTC

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You'd think you wouldn't have to explain the very basics of Bitcoin mining to someone who just publicly attempted to soft-fork the network, wouldn't you?

2026-08-09 17:50:28 UTC

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It's not like it's even relevant at this point. The minority chain lost pretty much immediately and the only miner who found blocks has given up on it.

2026-08-09 16:52:49 UTC

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Node address?

2026-08-09 16:51:35 UTC

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Not happening. Even Roughnecks, who mined the only 2 BIP-110 blocks after mandatory signaling began, is already back to mining the normal chain.

2026-08-09 14:22:43 UTC

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I would assume having the longest chain at the stated date, but couldn't find the details in that UI.

2026-08-09 13:39:26 UTC

People are still trading on the BIP-110 prediction market. Totally no funny business going on, promise!
https://blossom.kosmos.org/6e614900bc29d9f6f3eb57c15820a040962fbb027303bc74030082381f7ef98b.png

2026-08-09 13:19:30 UTC

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This aged like fine milk.

2026-08-09 00:08:04 UTC

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Turns out when you try to fork Bitcoin without consensus you end up on a very slow minority chain. Who would have thought!?

2026-08-08 16:08:23 UTC

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They're cranking it up to 11 today, since it dawned on them that their boat is currently following BCH and BSV into the void.

2026-08-07 22:37:30 UTC

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Thanks for the urgent warning. However, a little more info would be very useful!
Is it only LND macaroons that are vulnerable?

2026-08-05 15:36:11 UTC

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Glanced over x402, seems to only support some weird EVM networks and Solana.

2026-07-13 11:03:14 UTC

Regarding Amber itself: the relay I used for most connections, nsec.app, has been timing out for weeks now.
Purple Pages is also still down.
Zapstore still giving me "This app is no longer available" for all my installed apps when opening the entries directly, and timing out on the Installed Apps screen.
Am I the only one with this experience? And will everyone else here also just kill the infrastructure without even announcing it properly?

2026-07-09 21:58:00 UTC

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Not tall enough, need to fit batteries under the cabin. Moar big!

2026-07-02 19:21:30 UTC

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Does it have any tooling for visualizing the trust graph for those?

2026-06-30 23:32:29 UTC

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Inspire them to add self-sovereign signing for profiles and content. Silverpill has done a lot of work on that; see here for example:
See here for example: https://codeberg.org/ap-next/ap-next/src/branch/main/nomadpub.md

2026-06-30 09:39:57 UTC

I opened Zapstore in order to update Amber, which (without explanation) isn't connecting reliably to the default relays anymore. So my experience is now broken for all of: social client, signing app, app store.
#nevent1q…px2m

2026-06-30 09:36:06 UTC

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I was going to quote my recent post in this one, but alas, edits/corrections are still not a normal thing on Nostr.
#nevent1q…pcs0

2026-06-30 09:34:24 UTC

Zapstore is also completely broken for me now. Terrible experience. No proper error messages in any of the apps as to why things aren't working, which would help a lot with either fixing it or reporting failures to the developers.

2026-06-29 15:50:20 UTC

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Yes, could be.

2026-06-29 09:48:32 UTC

It looks like purplepag.es has been down for a while, and it's considerably hurting profile lookups in my clients.
Anyone knows what's happening and/or if there are alternatives?

2026-06-29 09:43:50 UTC

GM, 58K gang
https://image.nostr.build/eb3f243f9d48efecda301bde528f50a773fe69879c5453983c782ed04456610d.jpg https://image.nostr.build/80b438be0288839f6c34889c819ba49e91190a844a2837a839d5d37801e0e8be.jpg

2026-06-23 12:23:13 UTC

GM
https://blossom.kosmos.org/252ec14c1c8a2e05fdb52b419eab7c908fdc0db77f1c2b0f09e80d374b2a113b.jpeg

2026-06-14 06:42:28 UTC

GM
https://blossom.kosmos.org/28d731330a605993006c01df6f0d2b18924b01a68ad61bf89b02c3481807e06c.jpeg

2026-05-31 10:14:53 UTC

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What happens when the hardware breaks?

2026-05-27 20:14:23 UTC

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Still way cheaper than traditional banking, especially business accounts.

2026-04-24 10:16:08 UTC

TFW you put OpenCode in build mode and tell it to proceed with your well-constructed plan:
https://blossom.kosmos.org/c725439f03d9aba77f4079e2c738f5be301cc690081cd241f89cc9f3d57528c9.png

2026-04-23 07:29:44 UTC

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There's only one way to find them all. ;)
While we're at it, I'd like to add LDAP auth to blossom-server soon, so that the people who can write to our strfry relay can also upload to our Blossom server. (I know it sounds a bit weird, but LDAP is actually great at being a highly available user directory service, and we standardized a `nostrKey` attribute, analog to `gpgKey`.)
So the question is: for any auth methods more complex than a simple whitelist, do you have a preferred architecture/layout in mind? I haven't really looked at the codebase in depth yet. Maybe you already thought about the topic in general?

2026-04-23 07:24:20 UTC

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Yes, that fixed it. Thanks. 👍

2026-04-22 20:27:26 UTC

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By the way, Applesauce is awesome! Going to share what I'm currently building with it soon. And Blossom is also playing a role. Thank you for both! 🙏

2026-04-22 20:24:58 UTC

@npub1ye5…knpr Hey there. My blossom-server returns http:// URLs instead https. It's running behind nginx and both the nginx config and blossom-server config seem to have all the relevant headers and config keys set. Wondering if I'm the first person to run into this issue...

2026-04-22 04:58:53 UTC

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Oh, interesting! How do you handle the queue and approvals? I'm planning to do exactly this for a new use-case-specific relay I'm spinning up soon.

2026-04-19 09:13:37 UTC

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Yay, now I can replace a few little bash scripts with bunker profiles!

2026-04-18 12:14:09 UTC

Running Blossom for media attachments now.
Here, have a sheep: https://blossom.kosmos.org/2536f113ec54c868a97c977afff8b56a061649bc81fd5aae712c70377b529659.png

2026-04-18 10:26:31 UTC

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I don't know. There's a NIP with a number, so there should be at least a couple implementations, no?

2026-04-18 08:03:05 UTC

Nostr devs: what's the most popular photo-centric app using NIP-68?

2026-04-16 04:27:46 UTC

Build your own phased array radar system (3km or 20km range):
https://github.com/NawfalMotii79/PLFM_RADAR
https://image.nostr.build/cb14f817ab0adc299c7ff4a0b0af063c41bd7bd48fd0f41f2b0f6e1d373e996f.png

2026-04-15 12:14:27 UTC

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Sure, but standardization could make it interoperable between apps and relays.

2026-04-15 10:21:39 UTC

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I was also thinking about running a relay for specific new event kinds, which is photos and reviews for OSM places, and my rough idea is for new users to be able to post to the relay, but new users' notes ending up in a moderation queue before being readable by others.
(No idea about the current state of moderation NIPs and implementations.)

2026-04-15 10:17:33 UTC

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Wouldn't it make more sense if the authors used PoW and the fee would be paid by the consumers? Then it's a win-win-win: authors get exposure, relay earns sats, readers get quality content.

2026-04-14 05:15:16 UTC

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If you're talking about spam posts, then just turn off public account registrations instead of hiding all the content.

2026-04-14 05:13:29 UTC

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This helped a lot on ours:
https://gitea.kosmos.org/kosmos/chef/pulls/626/files
I think the only real solution is PoW for unknown clients, which I'm setting up next via https://anubis.techaro.lol/ — but our Gitea has been usable for a couple months now, after the simple quick fix above.

2026-04-13 16:04:23 UTC

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Been hosting it for years now, and never regretted it.
The AI scrapers are pretty annoying with any self-hosted, public Git web servers these days. Slowing down 404 responses helped us a lot, but looking into adding some PoW for unknown clients next: https://anubis.techaro.lol

2026-04-12 11:09:56 UTC

@npub1864…t2tq I wanted to visit the wiki page linked from the website just now, and it seems like it's behind a login wall. Is that intended?
https://gitea.btcmap.org/teambtcmap/btcmap-general/wiki/Tagging-Merchants#shadowy-supertaggers-

2026-04-11 18:10:42 UTC

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Change it while it's young.

2026-03-28 18:52:51 UTC

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The German solution to literally any problem in 2026 is just more central planning.

2026-03-26 18:33:03 UTC

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https://image.nostr.build/8a682be77cd4d6c31071ca6fd7498b797f80201251cb19667d140227bd6a43b6.gif

2026-03-26 12:07:36 UTC

@npub1uac…99rx Hey. I'm wondering what the reason was for archiving the https://github.com/sandwichfarm/nostr-geotags repo. Has it moved elsewhere perhaps?

2026-03-19 10:07:22 UTC

There's finally a quality app for editing and annotating screenshots on GNOME. I gave it a try, and it's exactly what I was waiting for:
https://flathub.org/en/apps/be.alexandervanhee.gradia
I love the blur-out tool for obscuring parts of the image, but all the other ones also work really well.
https://image.nostr.build/5f61402b12f4fa590d1022687d0ebde59bdab7b4603089fd53dc135c5532d8c3.png

2026-03-19 08:41:36 UTC

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X is also responsible for pushing Bitcoin drama queens into everyone's timelines. BIP-110 being a prime example. Could just be automatic engagement optimization, but it's still sketchy.

2026-03-16 11:38:40 UTC

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I'm only spending some time there again recently after a long absence, initially for an entirely different topic that isn't covered on Nostr or the fediverse at all. So I have no idea when it shifted in this direction. It's just wild looking at the result now.

2026-03-16 06:53:45 UTC

The parallel BIP110 dimension that is X these days is quite astonishing. It's like you can jump in and out this parallel dimension simply by visiting that website.

2026-03-10 08:14:46 UTC

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Congrats, you're the first to bring this troll clown to my Nostr timeline. I thought only X users were naive enough to enjoy this guy's asinine takes.

2026-03-07 09:57:58 UTC

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Maybe it doesn't allow Visa ads. Good. 🤣
#nevent1q…0lkz

2026-03-07 07:44:00 UTC

@npub1ktt…yhz0 Is your relay private now, or did I hit some kind of overeager spam control? 🤔
https://image.nostr.build/a6739fc4ab1dd25b53227bb4fba634784a2b341f90bdc09fb466bade5e28a3fc.png

2026-03-07 07:41:23 UTC

Was looking for a coffee shop to work from in the area and accidentally ended up with this view:
https://image.nostr.build/f2e1fd3a67ba4e85fa8f5360df42c0b5d0d70cda117cc893c556c7276150b408.jpg
I think I might come back here, because it's actually somewhat motivating for working on bitcoin-related things. 😅

2026-02-25 13:24:29 UTC

This is cool, but why would I want a social identity attached to my network access? Don't we want our transports to be as anonymous as possible? Maybe I misunderstand how this works, or what it's for...
#naddr1qv…musk

2026-02-25 08:35:56 UTC

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"Require" "on Linux" 😂

2026-02-13 05:29:22 UTC

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... and then writes another post apologizing for the first one. There's no such thing as bad publicity I guess. 😅

2026-02-04 05:15:28 UTC

"Strong minds discuss ideas, average minds discuss events, weak minds discuss people."
Time to build.

2026-02-02 05:09:08 UTC

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Nostalgia:
https://image.nostr.build/830b1188a6b24a31c544f4d3470a7aa6765da418359df1e41353fb450bd6944a.png
That logo was so recognizable and widely known, that they were able to replace it with a barcode when the EU banned tobacco advertising in Formula 1:
https://smart-motoring.com/latest-news/the-barcode-that-had-everyone-talking/

2026-02-01 01:50:27 UTC

"For the first time ever, good talk is exponentially more valuable than good code."
https://nadh.in/blog/code-is-cheap/

2026-01-29 01:18:22 UTC

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I love how central banks always claim that their primary mandate is price stability. 🤡

2026-01-27 04:54:35 UTC

One thing that's interesting to me is when FOSS creators complain about LLMs "stealing" "private" code. Isn't it actually amazing how you can use the LLMs' knowledge of that code for creating more FOSS now? Epic win in my book.
Free ALL THE CODE! ✊

2026-01-19 04:32:09 UTC

Is there any Nostr event kind for reviews that includes a property for a rating/score? I.e. "4 out of 5 stars", like GMaps or Amazon.
I'm adding Nostr place reviews (with photos) for OSM POIs to my new unhosted maps app this week, and I don't want to reinvent the wheel.
/cc @npub1864…t2tq

2026-01-19 04:02:27 UTC

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The problem with Arsenal is they always try to walk it in.

2026-01-18 10:07:20 UTC

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Using it every day at @nprofile…p90w this month. So good.

2026-01-15 07:09:13 UTC

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Sending money to friends from different continents was the initial reason we started settling our tabs in bitcoin at @npub1pcz…0utg from 2014 onwards. It's still one of the most powerful USPs compared to the legacy system, even with Wise etc. making it much easier between the largest currency zones these days. Most of the world's population does not live in those zones.

2026-01-13 04:50:39 UTC

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Best practice (which is probably rarely followed) is to let users add multiple passkeys to the same account. That said, the level of lock-in they achieved by not letting you export anything and syncing only to a certain ecosystem's cloud servers in all big vendor implementations is completely over the top.

2026-01-12 09:27:55 UTC

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+1 would use

2026-01-10 04:54:20 UTC

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What about AMD hardware? Something like this for example: https://www.bee-link.com/products/beelink-gtr9-pro-amd-ryzen-ai-max-395?variant=47842426192114

2026-01-10 04:12:56 UTC

I don't think we all use the same definition for the term "censorship resistance":
https://docs.v1.pod.network/architecture/censorship-resistance
A permissioned network with known validators, of which you only need to compel a third to censor transactions or freeze funds, is almost the opposite of "censorship-resistant" in my book. Maybe I'm missing something? 🤔

2026-01-05 08:08:15 UTC

Not sure how many clients can deal with calendar events at the moment, but I just published my first one:
#naddr1qq…u4av

2026-01-05 07:58:53 UTC

🎉 Join me at Hacker Beach!
📅 December 31, 2025PST
📍 Koh Lanta Yai, Thailand
Hacker Beach is a month-long, spontaneous, self-organized gathering of hackers and like-minded people on a tropical island (or coast). It happens every year in January.
There is no organization, no prepackaged deal, no tickets to purchase, or registration forms to submit. The gist is: if you want to recharge your body and mind in a warm and relaxed place, with enough Internet to work and play from, affordable accommodation, delicious food, and no rowdy tourist groups around, but instead a bunch of hackers and their friends… just show up at our destination sometime during the month of January!
🔗 https://plektos.app/event/naddr1qvzqqqrukgpzq8meqkx80g3yuklzymy0qfx2ekk56aqc2ht4ak03z3em4r4cdcwtqqjxywtpxajnsd3k95uxzwpe956rwe3394sn2dph95engd3jvdsnze3svd3nx6sjwc2

2026-01-03 15:56:58 UTC

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Start collecting tokens today

2026-01-03 15:50:22 UTC

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Start collecting tokens today.

2025-12-31 09:07:53 UTC

Someone should organize a Nostr meetup in Da Nang:
https://image.nostr.build/47de3cb26d7afe843183dbf53cc236634e11399025b8ea617ad1ae456a2012f5.jpg

2025-12-30 07:56:59 UTC

This is a neat idea:
https://listenlater.net/
Could probably be replicated with ecash payments to a Nostr AI service for processing, then storing the files (incl. an updated RSS document) on a Blossom server or similar.

2025-12-26 15:43:13 UTC

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Because the temperature of water freezing is what affects most life on Earth, so it's the best reference point for our puny brains.

2025-12-25 06:37:47 UTC

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They're world-class in saying No!