gringokiwi
James Scaur ◉⚡️🥝

Bitcoin minimalist. Helping people get paid in hard money @ RiseWorks.io. Feb'25 bitcoin++ hackathon winner.

Public Key

npub1fm4m0u86c234t6wcs33z5dvmx3fsrckwh72q8dkwhgplu7du9s5ssxw63a

NIP-05 Address

Profile Code

nprofile1qqsya6ah7rav9g64a8vggc32xkdng5cput8tl9qrkm8t5ql70x7zc2gpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsx8wkre

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1fm4m0u86c234t6wcs33z5dvmx3fsrckwh72q8dkwhgplu7du9s5ssxw63a

Show more details

Last Notes

2026-01-27 15:26:33 UTC

After spending most of 2025 as a nomad, I've decided to move to Floripa (Florianópolis) 🇧🇷
I'm keen to meet any locals working in the bitcoin/fintech space.
About me: Software dev from New Zealand. 8+ years in crypto, specializing in bitcoin since 2022. Won 5 hackathons in 2025. In my spare time I like to surf, rock climb, and "read" audiobooks.
https://blossom.primal.net/92068b8cc3f04d08db7deb0372b03f00fbe3e9e4d72270828c93c48854b80f3a.jpg

2025-11-12 17:51:03 UTC

Picked up @nprofile…6mks's "Bitcoin: A Work in Progress" at @nprofile…h326
Looking forward to looking more about Taproot, SegWit, Utreexo and Miniscript!
https://blossom.primal.net/97b1110eaf9f074619fc343806b3954807822c225750f6eb027736b663fe001a.jpg

2025-10-03 21:02:54 UTC

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Thanks for the shoutout!

2025-09-24 01:40:17 UTC

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If you don't want to talk then don't reply publicly to a thread?
You sound like a bot.

2025-09-09 00:01:16 UTC

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I have a love-hate relationship with the contentious nature of the bitcoin community
One one hand it can often be totally counterproductive with bitcoiners losing sight of the fact that BTC is way more strong/resilient than any of us, we can't 'misuse' it if we try
On the other hand, arguing with people is the best way I know how to clarify my own opinions. Sometimes I need someone to call me a shitcoiner to figure out if I'm right or not

2025-09-05 05:12:42 UTC

Who coined the term eatery? Such a bad name. It's like calling a school a learnery. It's not even a loanword

2025-09-04 22:59:23 UTC

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You refer to yourself as a pleb lol

2025-09-04 22:49:34 UTC

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Do you think that makes you special? What have you done for Bitcoin during that time?

2025-09-04 22:46:36 UTC

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I think it's an extreme, unrealistic example to bring up. There is no reason why this would be put onchain, especially on Bitcoin.
I've never heard of it happening on Ethereum or Solana for instance, which both allow for far greater quantities of arbitrary data storage, and have done so for years…

2025-09-04 22:39:26 UTC

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How did you find out about Nostr?

2025-09-04 08:47:56 UTC

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Core isn't a singular entity that can 'say' something
It's an open source project that serves as the reference implementation

2025-09-04 08:47:13 UTC

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BTC is a protocol

2025-09-04 08:46:40 UTC

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The fact you think people are putting that on-chain is telling about what type of person you are.

2025-09-04 00:24:44 UTC

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If you don't store JPEGs, you aren't running bitcoin

2025-09-04 00:24:11 UTC

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The garbage cans are overflowing. V30 expands the garbage cans. Knots wants to keep the same size garbage cans because they fear increasing the garbage can size will encourage more trash

2025-09-04 00:22:53 UTC

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Nope to what?
This is a very good analogy
Banning litterers from the park at least partially contributes to people not littering
Same with filters partially contributing to most transactions not being "spam"
You can also make the argument that adding garbage cans encourages people bringing their trash to the park, just like filterbois say removing datacarrier limit will encourage spam

2025-09-04 00:18:53 UTC

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Same vibes as this classic
https://blossom.primal.net/5d41bd7cabd88c71271f7bc7dd2e358b9ebd9f625b464a7687195938e713b935.jpg

2025-08-27 11:59:36 UTC

Just tried a Latvian pirts (wet sauna)
Incredible
I walked in feeling exhausted, irritable, and nauseous
Came out feeling energized and calm
Nobody spoke English so I basically had to learn how it all worked by observation, like how to grab the railings and sit down without burning my skin, or how to use the leaf whipping bundles
It was bloody hot…
Whipping myself provided a sensation of temporary relief but ultimately made me hotter
The cold plunge pool outside the sauna was freezing too
But that's exactly what I needed to shock my system
The feeling after each cycle was intense. Blood rushing across my skin, tingles of electricity
I downed like 2 liters of borjomi mineral water too. It's salty and tastes a little like soap, but is excellent for staying hydrated
10/10
https://blossom.primal.net/9c3d019b3113901740e12316996f7acb4526455025df4dce9605427146f97faa.jpg

2025-08-20 04:47:46 UTC

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Thanks @nprofile…k63t!
It was a great hackathon, and the fact I now have an account I can post updates on is cool
Funnily enough one of the biggest missing pieces of @nprofile…r66x was the ability to have sponsors contribute towards a pool which users can draw from to carry out their "zero fee" consolidations... and then post a message on Nostr announcing the "sponsored consolidation"...
I will see what I can do to integrate Angor with this!
#nevent1q…znjd

2025-08-20 04:36:59 UTC

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🤣

2025-08-20 04:35:34 UTC

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I think your idea of targeting hackathons is great, especially high quality bitcoin focused ones like BH2025
There's a ton of potential with those milestone and investment approval features too… if a project is set up with thoughtful milestones and an exclusive community it could be a much more attractive investment than the likes of Geyser, Patreon or Kickstarter
Are you interested in the Latin American market, particularly Brazil? I could help you implement a localization management system if you don't already have one, and potentially find native speakers to review translations

2025-08-19 09:44:00 UTC

Tried out @nprofile…n769 over the weekend -- very cool project
I don't envy the job they have ahead of them
Fundraising platforms have a lot of moving parts, attract crappy users (scammers & virtue signalers), suffer from a killer chicken-and-egg problem, and are difficult to make sustainable (often need to be donation based themselves)
But they've made an excellent start, and their platform is very impressive on a technical level

2025-08-19 09:24:12 UTC

I have to admit I'm a hypocrite when it comes to exchanges
My general stance is that high fees are a relatively low cost to pay if you have an exchange that is BTC-focused, good UX, minimal ads/tracking, promotes self custody, etc
But in practice if I'm buying KYC I just go for whatever has the lowest fees
Same goes for wallets
I've played around with running a Lightning node, self custodial solutions like Phoenix, but instead of shelling out for inbound liquidity or a service like Alby Hub I mostly stick to custodial WOS, or even exchange based LN wallets
So yeah, I'm part of the problem

2025-08-19 08:09:06 UTC

Working out and flossing have many parallels
Do it regularly and it's easy
Life is good and it's a mere annoyance
Suddenly stop and you can coast for a while on your gains
You feel worse but not noticeably worse
But eventually you adapt and forget what doing it regularly feels like
Then restarting sucks so hard (DOMS for workouts, gum bleeds for flossing)

2025-08-11 19:18:37 UTC

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I've noticed this bug, wonder when it'll get patched? I keep spending sats but the dollar value doesn't go down

2025-08-11 14:23:03 UTC

#bh2025 was fantastic and so was @npub1dwa…7c52 privacy edition
Had fun doing the hackathons, met a lot of cool people, and enjoyed visiting Riga
Now that it's over I've decided to take a break from X for the next 30 days
It's a great platform for learning and meeting people but the algo seems to think I enjoy getting into arguments with filterbois and big blockers
As the saying goes, "never wrestle with a pig"…
Plus I have plenty of work to do and new things to study, like @nprofile…lpaz's PayJoinDevKit.org, Spark.money, ArkadeOS.com, Second.tech, etc…
Should mean I'll be posting here more often!
https://blossom.primal.net/9ba750fc6ad3a6f653a280263be4b9ac27b0fb44ebf91042114795d68da35bf9.jpg
https://blossom.primal.net/1ed36471de283c828a05d265a27fce647e72721cb7903db7e76c8b0c7003b8d6.jpg

2025-08-10 14:23:10 UTC

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Stoked to see Sweepstack in the runner-ups as well -- I actually withdrew from the hackathon earlier today, but presented anyway.
Here's the demo video from @nprofile…5flv :
https://blossom.primal.net/0bde0400616bf527126f0962e0e8e0534c2c077002bbcdfa9274a8bf86d43833.mp4

2025-08-10 14:21:36 UTC

Congrats @nprofile…6eqp on two back to back hackathon wins with git-futz -- first @nprofile…5flv now #BH2025!
See more here:
https://geyser.fund/project/gitfutz
https://github.com/feuplebian/git-futz

2025-08-10 13:48:21 UTC

Just tried out receipt.cash by @nprofile…8d6t live at #BH2025 hackathon presentations
It's a service for splitting bills with automatically generated Cashu + Lightning invoices
Receipt parsing made possible with @nprofile…etsy
Very cool!
https://blossom.primal.net/e059d5aa20fd37b200fde2be907cbba72dfcfbe8326e1e537d6d9de247d6cc79.jpg
https://blossom.primal.net/1d7a55369ace337cc9fc02d1cf766412aaa455e3a468e20b4eed78bec57fc695.jpg
https://blossom.primal.net/0a00d2781e13f73e8b7697afdf767d0c9fea845f2edbb584d2631a1a6cea25af.jpg
Check it out here:
https://receipt.cash
https://geyser.fund/project/receiptcash/

2025-06-03 12:43:19 UTC

Just had my first quality sleep in weeks -- maybe months.
God, I missed aircon.
Slept within minutes of getting into bed, woke up 7 hours later naturally, no dry mouth, full of energy and ideas.

2025-05-16 02:19:22 UTC

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Great chat!

2025-03-05 08:54:50 UTC

7 things I learned from COVID:
1. Keeping a cool head and quietly sticking to your guns is as (or more) powerful than actively fighting for what’s right.
2. Cruelty, schadenfreude, and the desire to punish and feel superior are key parts of human nature. If given a free pass, many people will happily dehumanise and attack an out group (this applies to both pro- and anti-vaxxers, btw).
3. Money insulates us from crises. Lockdown was easier if you had a big house, aircon and a home gym. Private jets had less restrictions than public airlines. High-paid jobs had better security and an easy transition to WFH compared to low-paid “essential” jobs.
4. Conspiracy theories are overrated. COVID was more than likely a spontaneous event that was then used as an rationalisation for printing money, shutting down businesses, implementing digital ID, and similar measures.
Related: https://lukesmith.xyz/articles/conspiratorial-thinking-and-multiple-outs/
5. Being a NZ citizen isn’t as special as I thought. It didn’t stop my government locking me out for 2 years. I made several requests to return, since my grandfather was dying of cancer, and I had run out of emergency visa extensions. Denied each time. Meanwhile, exceptions were made for various bands and sports teams.
6. There is no scenario where critical thinking must be abandoned for “the greater good”. As a rule, it’s worth being extra skeptical when someone insists that a situation is too urgent and you need to act without thinking.
7. Placebo and nocebo are powerful. In the early days of COVID when I was very worried, I felt sick many times (even with COVID-specific symptoms like no smell) while testing negative. Later on, I tested positive several times with no symptoms. Then, after I got the vaccine, I started getting heart palpitations and chest pain — despite nothing showing in my cardiologist’s exams.
I regret a lot about how I reacted to COVID, but the silver lining is that I’m now a more critical thinker with a clearer moral compass.

2025-03-01 18:03:16 UTC

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Crazy

2025-03-01 18:02:01 UTC

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Brazil too.

2025-02-24 14:09:24 UTC

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Anyone who wants sats in exchange for their BRL

2025-02-22 19:57:49 UTC

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Sou @gringokiwi no telegram e discord e @gringokiwi.21 no signal, manda mensagem posso mostrar (sou o criador)
Tambem postei no x/twitter sobre o projeto: https://x.com/gringokiwi/status/1893375343118967063

2025-02-22 19:54:18 UTC

@nprofile…kca5 just won the first ever @nprofile…5flv hacking edition hackathon!
Thanks so much to @nprofile…5q8d @nprofile…dcxc @nprofile…ty6t and team for organising a great event
And to my teammates @nprofile…0rcy @nprofile…uyp4 and Octavio — wouldn’t have been able to do it without you
https://x.com/gringokiwi/status/1893375343118967063

2025-02-22 13:26:06 UTC

Just paid for my uber to the @nprofile…5flv hackathon using lightning over @nprofile…kca5
https://x.com/gringokiwi/status/1893283850836431269?s=46

2025-02-22 02:03:06 UTC

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Back online https://x.com/i/broadcasts/1MnxnwqBazBKO

2025-02-22 00:53:38 UTC

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They're kicking us out, AFK ~1h

2025-02-21 20:57:41 UTC

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continued: https://x.com/i/broadcasts/1kvKpyDPLloGE

2025-02-21 16:24:31 UTC

Live-coding a Brazilian PIX payment service for the @nprofile…ntda hackathon using Lightning, @nprofile…0dzv, and @nprofile…akdl
https://nostrpix.carrd.co
@nprofile…q98p
@npub18yy…j50p
https://x.com/i/broadcasts/1vAxRDoanvqGl

2025-02-20 22:24:03 UTC

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Team formed:
- @nprofile…0rcy
- npub18yyc9l68tk6zsq63wmnzf3862l3xfckds38tq44egwl5l4g0nqeszhj50p
- x.com/octavio_lucca
- @nprofile…p4hh
Pivoted idea:
Pay anyone in Brazil 🇧🇷 using sats ⚡️ via @nprofile…nh8t
Site:
NostrPIX.carrd.co
Devpost:
http://devpost.com/software/zapzappi
Follow us on Nostr: npub12pqnwgljl6jc7k7u3pq3dkhu5snyul2ltsxweptx8cw7mw6xymrq8ueuv6
https://m.primal.net/PEmr.jpg

2025-02-20 19:33:55 UTC

@nprofile…5flv hackathon kicks off!
@nprofile…dcxc @nprofile…ty6t
https://m.primal.net/PEdd.jpg

2025-02-19 18:36:10 UTC

Just arrived at @nprofile…5flv!
https://m.primal.net/PDJz.jpg

2025-02-18 03:32:06 UTC

TIL macOS has built-in background sounds for focusing
Still prefer Brain.FM and Noisli.com though
https://image.nostr.build/4f375deacbb7685d40e629d856a4ad3d1581b83e096ef5ad09ced46ada82ed21.png

2025-02-17 18:05:20 UTC

Who is coming to bitcoin++ by @nprofile…ejf3?
Flying down tomorrow.
It’ll be my first time.
Super excited!
🔗 btcpp.dev/conf/floripa
Some of the speakers:
@npub12a6…clwp
@npub19z2…fkd4
@npub1qqq…rfkq
@npub170d…chu7
@npub1zuu…c2uc
@npub1hxf…xw8z
@npub1py3…ke9h
@npub1e0z…0txy
@npub1lqn…yrp7
@npub1rqx…s548
@npub1kyg…ph68
@npub1m0s…gcru
@npub1nxy…lnxl
@npub1yxp…399s
@npub1m0s…qp5h

2025-02-17 14:41:52 UTC

Gonna live-code a tool to check for bitcoin/ordinals/runes balances on a bunch of addresses today.
Haven’t done it before but I think it’ll be a good chance to demonstrate various scraping tools, strategies for bypassing blocks, ETL tools…

2025-02-17 14:26:35 UTC

Man, I’m grateful I have good lactose tolerance.
Whole milk is fantastic.
Yes, it’s high fat and calorie dense.
So not the best for getting lean or before cardio or sedentary work.
But otherwise it’s great for:
Strength
Immunity
Hydration
Skin/hair
Recovery/sleep
Joint pain

2025-02-14 22:11:20 UTC

I've been telling everyone keen to get into software development for a while now that the game has completely changed.
You no longer need to know how to program or even understand the basics of computer science.
With tools like @nprofile…etsy , Replit.com, v0.dev, Bolt.new, Cursor.com, Builder.io, and Lovable.dev, you can already build better software than most engineers could three years ago.
Yesterday, I decided to prove this by live-coding an event management and ticketing web app with Bitcoin payments on X.
To make it more interesting, I built the frontend using only Carrd.co and vanilla JavaScript.
Check out the results here:
🔗 Live demo: https://events-app.carrd.co/
💻 Backend source code: https://github.com/gringokiwi/events-app
📷 Screenshots: https://imgur.com/a/rHcYay4
And the livestreams:
🎥 Part 1 (no audio whoops): https://x.com/i/broadcasts/1lDxLzdANvZGm
🎥 Part 2: https://x.com/i/broadcasts/1eaKbWdpyevGX
🎥 Part 3: https://x.com/i/broadcasts/1MYxNwrkVZzKw
https://m.primal.net/OwoE.mp4

2025-02-14 19:15:51 UTC

Complete!
https://events-app.carrd.co
https://github.com/gringokiwi/events-app
Couldn't get Cline to work properly with @nprofile…8fya but I'm still a fan of the concept so I'll be trying again later.
Some screenshots:
https://image.nostr.build/4c79c5bc690aa1cee14737d92de7a31213cd29a99ba6ac6dc084aefbe394ba60.png
https://image.nostr.build/d3e727c89f669d0fec04319c386936ace339211a6ac8a4dfd7762ea27ba68771.png
https://image.nostr.build/a13716e8d0aa638d530ee798155b1dfc65fcdc9ae3163dc0147298d7897c71ae.jpg
https://image.nostr.build/b285c7f724c97e1d40124f545f39471ec767f93f753eebb544ffcac32ede77f4.jpg

2025-02-14 15:50:47 UTC

Yesterday I live-coded an events webapp using Carrd.co, Railway.app, Cursor.com, PPQ.ai, and Bitcoin. Putting the final touches on it today.
https://x.com/i/broadcasts/1MYxNwrkVZzKw

2025-02-14 15:42:54 UTC

Just installed Cline.bot -- an open-source AI coding assistant. Excited to give it a spin.
h/t @nprofile…cwnz for the recommendation.

2025-02-14 03:18:32 UTC

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My bank put me on fraud investigation after I reported a glitch to them where they were marking various purchases on my card as credits (i.e. refunds) instead of debits.
After initially denying the glitch they realised something was wrong — yet somehow blamed me - the customer who reported the issue to them.
They froze all my accounts including unrelated business accounts.
After several weeks of investigation, they realised it was an internal glitch… but by that point the fraud team had ruled my account be permanently closed.
The most infuriating thing was the disrespect I was shown throughout the whole process.
Denial of the issue, sending me to FAQs on how a credit card works, making me wait hours on the phone… then after realising the glitch, assuming I was some reckless kid trying to steal money.
I can’t wait until I’m completely off fiat, I’m sick of using banks. Hell, I’m considering a move to the USA just to use @nprofile…jrgx …

2025-02-14 02:11:00 UTC

LaserEyes.Build looks awesome. Like Wagmi.sh but for Bitcoin.

2025-02-12 04:53:18 UTC

New Bisq scam.
Damn... it's a particularly nasty issue considering that PIX reveals full legal names and tax identification numbers (equivalent of SSNs) from both sender and receiver.
Makes it way easier to frame the victim -- and in many cases the banks automatically reverse funds.
https://image.nostr.build/8e3e4642813601ec437fc662694f076d76dc95717015544207d1f71279a6b993.jpg

2025-02-07 21:56:34 UTC

This is a restaurant at a popular shopping mall in São Paulo (largest city in Latin America) advertising they accept Bitcoin over the Lightning Network.
Seeing this much more frequently in Brazil than I used to.
https://m.primal.net/OVQJ.jpg
https://m.primal.net/OVQK.jpg

2025-02-06 00:27:42 UTC

I spent half of 2023 and almost all of 2024 completely off social media. Even deleted my LinkedIn.
It was fantastic—massive productivity boost. I’d recommend it to anyone looking to increase their output.
I had a solid network of personal contacts, mostly in the Bitcoin/Web3 space, so I didn’t feel much FOMO about missing news, innovations, or opportunities.
Especially not after joining the Bitcoin startup @Satflow_—which, like any good startup, had plenty to work on.
But the tradeoffs are real.
IMO, working and talking about your work are basically inversely related. One comes at the expense of the other.
If you work a lot, you don’t have much time for socials. And if you post a lot, you don’t have much time for work.
The biggest tradeoff has been my ability to connect with new people.
Sure, I’ve had more time for thoughtful one-on-one interactions with people I’ve known for a while. But in many cases, we’re no longer into the same things.
People who were into "crypto" in 2018/19 have since split into subgroups—Bitcoin maxis, EVM devs, Solana memecoiners, pro-/anti-KYC, OTC/P2P traders, etc.
Meanwhile, I’ve drifted away from the general "crypto" scene to focus on Bitcoin—specifically mainnet, self-custody, privacy, and L2s like Ordinals/Runes.
So... I can’t learn from them or help them the same way I used to.
Which brings me to my reason for opening this account.
I want to connect with others interested in Bitcoin L2s—people who see the value in Bitcoin’s UTXO model, decentralization, security, and simplicity, but aren’t so maximalist that they dismiss every use case that isn’t just HODLing.
I want to share what I know (and am still learning) about different L2s—after all, one of the best ways to learn is to teach.
And hopefully, build some cool stuff along the way.
So, give me a follow if you want to learn more and keep me accountable. I’ll start tomorrow.