Sheilfer Zepeda

https://piyali.app/links

My name is Sheilfer Zepeda. I'm passionate about education technology and live in Mexico.

Public Key

npub14vskcp90k6gwp6sxjs2jwwqpcmahg6wz3h5vzq0yn6crrsq0utts52axlt

NIP-05 Address

[email protected]

Profile Code

nprofile1qqs2kgtvqjhmdy8qagrfg9f88qqud7m5d8pgm6xpq8jfavp3cq8794cpp4mhxue69uhkummn9ekx7mqwa4vht

Publishing to

nos.lol

Author Public Key

npub14vskcp90k6gwp6sxjs2jwwqpcmahg6wz3h5vzq0yn6crrsq0utts52axlt

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Last Notes

2026-08-26 04:18:19 CEST

It’s very easy to tell if someone’s consumer product will work.
Does the product enable its consumers to be entertained, eat more or fuck more in some form or another?
Take a look at all successful consumer businesses. That’s what the consumer market is from first principles.

2026-08-24 18:52:26 CEST

You ever get to the point where life is so hard that you start journaling every day to find the balance in things lol

2026-08-21 18:15:12 CEST

https://blossom.primal.net/87ae93c104c1f594c7700ea27ed3f3672dc4e77959ff005b9a4f52db6cbcaf07.jpg

2026-08-21 05:14:58 CEST

What I’m enjoying so far from DiVine is seeing moots make content IRL. It’s nice seeing you all outside of our little text feeds here 😊

2026-08-19 22:45:13 CEST

Making a user interface and experience good really feels like 90% of the work in software engineering.

2026-08-16 22:58:21 CEST

I was invited today to a purepecha festival by an indigenous mayor in California yesterday.
I’m learning that indigenous communities are incredibly warm and welcoming, which is something I’m not that used to.
But it certainly is motivating to feel seen, and it continues to make me want to do more good in my work.

2026-08-16 20:10:56 CEST

badges.page is gone </3

2026-08-15 02:22:40 CEST

Really cool UX on the Ditto client - you can embed and run nostr apps in the feed.

2026-08-14 03:07:42 CEST

You will inevitably find an abundance of disappointment if you believe you are a good person.
It is better for your self-esteem to believe that you are just an individual who is trying their best instead.
This recharacterization will protect you from the judgement and criticisms of others, who in most cases, will only be able to observe parts of you, and in some others, actively search for & perceive whatever they believe to be objectionable.

2026-08-13 05:45:06 CEST

This is the only metric I follow to understand the progress of AI
https://blossom.primal.net/cb2ebc0ab17dd0bf6befaf6284ca9d130bc42028c2a5547a0cc1e06f1e5bfa96.jpg

2026-08-11 21:11:40 CEST

Average Reddit experience
https://blossom.primal.net/6d1663adf20bb84ff95223046265577ab6b780dd6fe900ba83972c99e27f4e43.jpg

2026-08-11 20:27:24 CEST

Lowered the price of my language learning tutor to $8/mo from $10 so that annual subscriptions can cost less than $50
https://blossom.primal.net/a894b21da124e4e0a5a52fb2bde58e69177b0fb3795c8037f304f1f60454f5df.jpg

2026-08-10 01:10:52 CEST

Which way, Bitcoiners?
https://blossom.primal.net/976735d0d66722df37ba30c2875d5085d2e2b811296a4e1654b3e3b99815b2e8.jpg

2026-08-10 00:54:08 CEST

reached 20,000 followers on instagram 🥳
https://blossom.primal.net/5c31aa2154cb260b33e743539f695a166552b12ca0d9db89d0c5d20888b9a1a5.png

2026-08-07 16:43:45 CEST

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Lmao

2026-07-29 05:40:19 CEST

It is strange how common algorithmic psychosis is on social media. It becomes strange when it convinces others to dedicate themselves to poisoning the minds of others with the politics of good vs. evil.
What a predictable outcome too. The algorithm is totally binary. You either post or don't post. You view or don't view. You engage or don't engage.
So naturally, large swaths believe they are good. I mean, after all, how could one simply settle with being evil?

2026-07-25 17:44:37 CEST

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next stage is agua fresca maxxing

2026-07-23 08:55:42 CEST

first time reaching 2000 MAUs on my education platform :')
https://blossom.primal.net/6939a1ffb9c79dc542512b5327fe9ba40e092d8973625d822e9de473db553d8c.png

2026-07-10 04:10:39 CEST

Broke past 15,000 followers on Instagram 🤙
https://blossom.primal.net/57d9615e18c15f8c1d829c2a101faafb952a6e8657ad5fc03972a0d0f7e1b4e9.jpg

2026-07-05 13:36:24 CEST

Good morning!
I have updated the language learning app with a cool app-wide change. I think this is the last major update I’ll make in a while because I am TIRED but I’m also happy and proud of its progress.
In a nutshell, I've introduced a memory system and more advanced adaptive learning assistant to the app. So now when you get things wrong across any learning modality, the app will store that and save it for the next day's quest.
The next day's quest will then produce a repair task in the daily quest, using one to two days of insights, that will have users go through quick bite sized lessons using the existing learning modalities to review and correct those mistakes, followed by the rest of the daily quest to tackle new material.
With this, the app feels more complete and much more like I envisioned - every part feels makes sense now. The pets will welcome users with a message explain what and why they're working on what they're working on, levels unlock different pets, daily goals are tracked and represented instead of streaks and no feature really exists in isolation anymore.
For example, before, the amount of XP/level you had was just a number that went up, but now it can unlock a companion. Learning modalities, pets, and XP/levels all work together to reinforce learning and have users discover new things, and overall it just feels like a stronger personal tutor that grows and works with you.
I also went ahead and updated the pet models so they feel better animated and more unique.
https://blossom.primal.net/ec4ae3c525f5f231a560e1b894982b7c4bad3624688fec1800d94be8df0da74a.png
https://blossom.primal.net/d7bfe1af87264b2ee8501f15a970ee944828e22310a29e3b0d4263accef5518e.jpg
https://blossom.primal.net/d068c50dddd991174d722043cccbb8ed0397f771c929be849433d9242d099610.jpg
https://blossom.primal.net/aeb1c01436f945a77eea1239a6f2438a2f449459c9918f2c2f7eba77200fd4ff.png
https://blossom.primal.net/fd0038eab7d0b4641729fa441847e8fa8b203fdecb0be25784208c87f3f71c3b.jpg

2026-07-05 06:03:42 CEST

Happy 4th of July to my American friends from Mexico
Hope you enjoy the fireworks with friend or family 🤙
https://blossom.primal.net/d3f0294cb7d7a4e9937b2c31efa683546cb16ba463a72883de9d024d7d233c27.jpg

2026-07-02 10:57:32 CEST

The language learning app is getting there.
https://blossom.primal.net/a7d5c60a12c551342974df76c1971d375452a59d5a99307a7d39200b857cec4e.png

2026-07-02 10:48:01 CEST

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Turns out that explore already does this.
I suppose since you’re working on refining for version 4, fine tuning the functional and visual hierarchy in the explore tab could be a good spot in general.
There’s potential to enhance the delight of it
https://blossom.primal.net/4d04d782b0aea99312ef964199bfd85cfb9dbe9b2a4318855e640fce575b042b.jpg

2026-07-02 10:44:32 CEST

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App looks good and feels good to use, good job.
Some UX feedback after initial use - I think the explore icon should be a Magnifying Glass. This UI is pretty standard on social/communication platforms for search/explore. For a brief moment I felt some friction looking for the search.
Small detail but any time UIs are changed it’ll introduce some resistance and/or friction and it’s an easy win in that regard.
Another possibility is just making search a standalone feature and expanding “explore” to contain things like reads, maybe even a vetted Micro App Store.

2026-07-02 10:37:23 CEST

Nostr really is a time capsule of the internet. Most of us never bother to influence one another or seek engagement nor can we really even if we tried.
Often times we have enormous differences in beliefs, politics and behaviors but we just come here because we want to spend time here & with each other anyway.

2026-07-01 06:53:08 CEST

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We have been spared
#nevent1q…27y4

2026-07-01 04:27:15 CEST

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This is a scam account
#nevent1q…r66j

2026-07-01 04:26:38 CEST

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2026-07-01 03:16:44 CEST

I fear that Mexico will lose today by way of divine judgement and acts of God due to Mexican fans attempting to disrupt the Ecuadorian team’s sleep at their hotel.
This thunderstorm and delay seems to indicate it.

2026-06-30 08:58:21 CEST

Working on somewhat of a big upgrade to my language learning app
Basically revamping how notes work. They automatically get created by an AI when you make mistakes so it reinforces the lessons for the next day
So basically introducing a memory system and enhancing the companion to be responsible for it
https://blossom.primal.net/ca4e49b166ed5d558d1a62f6f1fbad934991bb9b5a745cce1d6da47074c2046b.jpg

2026-06-30 08:56:08 CEST

Every time a new person presses that link, little do they know, they’ve been instantly onboarded to nostr lol
https://blossom.primal.net/d89826cc5f7f798516962752763840bfb941532b60e9eae911b99aab25172435.jpg

2026-06-27 03:55:28 CEST

Back on the short form instagram grind
https://blossom.primal.net/fd7f3223538cb5c59d75cce251261517d73cd90073772c85d804969287710142.jpg

2026-06-27 01:33:11 CEST

Added a bit more gamification to the companions in my language learning app https://blossom.primal.net/8ce9be427c09c3e430dbb1bbdb279f9f2e4607cfa074b7163c917747b1205f5e.png https://blossom.primal.net/63cd19984840bab3b914bd89eeaf39cf3f6df159e1d251fc4833aade6234490a.png

2026-06-25 10:59:19 CEST

Updated my language learning app so you can now pick a companion =)
https://blossom.primal.net/19386de61447353573459015829fee535fb211a0b8dfaffb2f447bcdc8f1ebbe.jpg

2026-06-25 01:55:08 CEST

Working on adding more personalization to my language learning app.
At the moment you just have a dog as a companion whos health you maintain by completing goals, but I'm adding more companions and customizable names.
what kind of companions would you like to see?
https://blossom.primal.net/0f66a30225c6f2ffd3df08855f58fa0fdfffade054afbe3fd36280803e7f1662.png

2026-06-23 03:25:32 CEST

Mayan dude I work with caught a bunny at the farm lol
https://blossom.primal.net/b9d2436373ab7d7db36f552025826298273e96994ee7dc8a356b0d54d56fe830.jpg

2026-06-21 20:04:32 CEST

Witness greatness
You can now change the name of your companion in my language learning app
https://blossom.primal.net/8627df45daf54f1eefe0d8c5b640837f829a15e03abfe762e3103ee5ed965562.jpg

2026-06-21 04:42:49 CEST

Added multi-modal learning with daily quests in my language learning app.
Now all learning modes are tied into one user experience so users can learn and grow using various methods.
https://blossom.primal.net/30a2d42fb2ac342ecff3e46e69c19262ba37f1637969049088e5dc4f9780f5c8.png

2026-06-10 06:23:05 CEST

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yay

2026-06-10 00:25:32 CEST

I never celebrated this but the other day I hit 1000 MAUs for the first time.
https://blossom.primal.net/72bf8268c10cd5bd9c1b7052e099f78c84e4218b1651b3e86e2d156cdfef4ad8.png

2026-06-10 00:20:20 CEST

Thinking of adding a "daily plate" feature to my language tutor.
Basically, it'll be a home page for users that creates a guided experiences of all the different learning modalities and essentially gives users a daily quest to practice and learn.
Super early version of this in the image but i'd be adding more overall user progress and data for them to be welcomed to.
https://blossom.primal.net/85924d3e5e08fd792e8fe83fca4f84b77997ee92c912a595607d2da0bc2e97ef.png

2026-06-09 00:31:48 CEST

A day at the avocado farm instead of coding
https://blossom.primal.net/dd9df04631338818956ccef0a4f01948d6f2c11b3e391667e0ec32a74fa0e0f2.mp4

2026-06-08 01:49:04 CEST

Got bit by a stray dog in rural Mexico but the 24/7 hospital clinic is closed because the doctor was “incapacitado”.
Hey but at least Mexico has universal healthcare lol 🤙

2026-06-07 06:00:12 CEST

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Hahaha it’s just the angle. It tasked like love at first sight

2026-06-07 05:38:16 CEST

One of my favorite delicacies in rural Mexico - agave flower stalk
https://blossom.primal.net/78d84a5f26afdd7234e0ca58dc0bcd35b1a681e577ec4c802ebd8133141896c2.jpg

2026-06-06 18:44:49 CEST

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Ya influencers come here and try it and then they get bored and leave after a week lol

2026-06-06 18:24:26 CEST

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I did an annual subscription to Damus Purple just because it was buttery smooth and felt well done lol, i only use primal on the web and just cope with bugs/friction but usually have to switch to my phone to do stuff like upload videos

2026-06-06 18:20:32 CEST

people on nostr are so chill man. people are just here and they get it. no point in trying to impress or influence one another - just here cause we wanna be here.
appreciate yall

2026-06-06 18:16:18 CEST

people hate AI art so bad but it's honestly so useful for making education content lol
https://blossom.primal.net/16d3d008456cf64e148456bbdd9d3b2bf849548b95ae6324e14aa55158413284.png

2026-06-06 17:56:43 CEST

I really need to put more effort into connecting with people. Kinda fell off hard doing that over the past couple of years.

2026-06-06 04:13:59 CEST

Updated realtime tutor to work more reliably with background noise for people doing chores, commuting or folks who live in noisy environments.
https://blossom.primal.net/46fb12cd928bbdb68e6f062578c3748e8132b839dceb56d6acf2931f1290e65c.jpg

2026-06-05 19:00:37 CEST

One must obsess over the user experience
https://blossom.primal.net/0f75c1b8a66d086da12530fbe155ca5976eb43eecf57db71d96604ec5cdeabef.png

2026-06-05 18:36:24 CEST

Working on making my language tutor smarter and more accurate. Almost there, building this was way harder than I thought it'd be
https://blossom.primal.net/1f8a7baeb9802c23770fba3c26e8892a41bb2e03b0741187ad07392a245f126f.png

2026-06-05 17:46:42 CEST

Voice agents are particularly good when a person is multi-tasking away from a screen.
E.g learning languages while doing chores, driving, vibecoding.
I'm wondering where voice agents really shine and bring joy.

2026-06-05 02:42:21 CEST

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Thank you. That bug where it misunderstands you is just terrible, I’ve had a number of different versions where that kept coming back.
It’s bad because it reduces beginner confidence and trust in the user and it’s also just frustrating to be caught in a loop like that, especially when you’re saying the right thing. A similar one I have, to a lesser extent, is code switching between dialects/accents.
This voice stuff is surprisingly hard in this context.
Doing a deeper dive and different implementation on it right now in hopes it’s more stable.

2026-06-03 20:35:29 CEST

Love nostr, favorite way to makes apps

2026-06-02 17:04:26 CEST

GOOD MORNING NOSTR ‼️🌞
I am offering 1000 sats for feedback on a new feature I’ve been working on: a realtime language tutor @ https://piyali.app
It is built on nostr so you can create throwaway keys with just a username, set up your tutor experience quickly through onboarding and then just press Talk to get started.
Mostly looking for: what you like or didn’t like, what you would like to see in a feature like this and/or bugs/friction you may have experienced.
Thank you for your time!!
https://blossom.primal.net/cbcd71e073f9a0c47b97bc868c7bff6763beb78bddec2566c8629087a5175e10.jpg

2026-05-30 19:36:19 CEST

Made the question and answer formats in my language learning app a lot faster
https://blossom.primal.net/3b44fcf59979881b2db1c40fdb5c2b4a7aee2143feedb9ee09380426ba6878b7.mov

2026-05-29 21:07:46 CEST

Teaching people how to code to teaching people languages with language model technology was somewhat of a natural progression.
One thing I quickly learned about teaching code to “underserved” communities is how important each word was when it came to introducing these skills.
Basically, you say one thing too unfamiliar and you risk totally losing someone’s understanding
So there ended up being a lot of meta clarifications in the pedagogy and curriculum
It was at that point that I took more interest in language learning, after internalizing that literacy is the first mile in the world of learning.
It’s sorta obvious, the first thing a baby learns is how to interact and communicate. But that gets multiplied into everything later.
Then in the world of interaction you find a lot of other first principles - imagination, motivation, curiosity. Education is a really emotional thing.

2026-05-29 17:44:56 CEST

The war with Iran reminds me of the Spanish-Chichemeca war.
It was a war that lasted decade after decade, where the Spanish campaigned a "war of fire and blood" against the semi-nomadic tribes that destabilized their trade networks and treasuries, only to fail in and realize the way to win was through peace negotiations with their allied native Tlaxcala delegation and investment into their world.
https://blossom.primal.net/70ae9ae5866f2b2f14b22cefaeca21ac2e6893359f0d52d6dbdf4b84c8f8119a.png

2026-05-29 17:44:29 CEST

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https://piyai.app =)

2026-05-29 16:55:07 CEST

It’s actually kinda cool how my language learning app doesn’t require a screen now that the voice tutor is the main feature.
Like I can be washing dishes and learning some stuff. I think people are right it believe that voice UIs will be a trend that pushes the internet forward.

2026-05-18 11:29:47 CEST

Man, people on the internet really hate AI. It makes me feel kind sad. It has brought a lot of joy & opportunity to my life.

2026-05-16 12:18:02 CEST

Damnit Gemini’s voice models are way better than OpenAI’s and they’re cheaper too >.<
https://blossom.primal.net/b0c75b8bf1a72fe7ec3bc3da21761946c39aac8f2cbe0cc695e77dc87a8e63a0.mov

2026-05-13 17:00:12 CEST

I’ve shipped a new realtime language tutor. It adapts based on the user’s proficiency level.
The video below is a demo of me (a Japanese student) learning the basics of German.
It’s an early release so probably some bugs, some ways I can improve the experience and ways to manage the cost since realtime voice is expensive but I’m happy with it.
https://blossom.primal.net/69156b8f04c5938412cc5b0d03707bcdf0668c64adfbe349bec2c3bddfc8d78c.mov

2026-04-21 09:58:08 CEST

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I have been meaning to make my language learning app more global, since English has the highest global demand,
But it took some time to figure out how to rewire my app since I originally only planned to keep the scope small for English & Spanish speakers (99% of my audience in social media).
I recently saw a girl from Egypt sharing my app and it reminded me why I even cared about education technology in the first place - to be able to connect and help people around the world the way the internet was originally intended.
It took some time because AI was not good enough to handle the task and I have a bottleneck of a $20 subscription, but I now have the infrastructure to increase the reach of my app.
As a thank you for this feedback, I’ve made Italian the language to map out how future support languages can be added.
https://blossom.primal.net/0cf3b2cb91112dfc6dd6eef93f66236ee94068b3e52aabc8c0d6d38d8b032548.mp4
#nevent1q…huw0

2026-04-19 14:33:15 CEST

Added dark mode to my coding education all
https://blossom.primal.net/71b247a9b8520ceb0a0e3ffa563d2211e4e4a4a5774f3cb833592509933c3a85.mp4

2026-04-16 14:22:21 CEST

Added a new feature to my language learning app that encourages you to practice a new language outside of the app in the real world or other places online with a list of tasks.
https://blossom.primal.net/6ec0144a9f42a608e4782017b91a2f825c22fd79b915d6b2a3d27a9e387318a5.mp4

2026-03-25 00:36:10 CET

Another wave of entrepreneurial depression. Perhaps doubling down for the 40th time will solve it, or perhaps I've gone insane in ways that will damage me for years to come.

2026-03-22 09:03:39 CET

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Seems to be a trend with this piece of feedback so I’ll have to prioritize that soon

2026-03-20 08:17:08 CET

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I believe there’s something wrong with your configuration on Zeuspay. I went on your profile and pressed the zap button in your header and I got this error
https://blossom.primal.net/290045a0a3c662bc43965a7a00ea7705d404450b59c9486ae02bf2beb9e43a1d.jpg

2026-03-20 07:44:04 CET

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I feel like the primal UI is misleading me, did you receive the zap?

2026-03-20 06:58:32 CET

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By this do you mean like a bilingual mode?

2026-03-20 06:37:46 CET

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Is amber nip-46 or something different altogether? Im looking this up right now

2026-03-20 05:52:50 CET

gm nostr. I’m offering 1000 sats for feedback in this thread.
I’ve been working pretty hard on a AI language learning app built on top of nostr and would love to collect feedback on what I can improve, what people don’t like, or what people like.
Feel welcome to nitpick or not. It would be greatly appreciated. Thank you.
https://nosabos.app
https://blossom.primal.net/6ba41f567f50c3c5264ef8bff741ebbb942799cef11b941484737e1a078dbb49.jpg

2026-02-09 10:47:35 CET

Broke 2000 followers on Instagram 🥳
https://blossom.primal.net/d36472d1a7512d5e251b437922c6d858132e6134ebc8380b7b40c495be5d79a1.jpg

2025-12-31 11:24:59 CET

New landing page 🤙
https://blossom.primal.net/c6fbaa6ddb3a33db8fb39423cb197ce016c62b0e54b288fd1e120a414d311bf6.jpg

2025-09-01 02:20:25 CEST

I've been using nostr for nearly two years and it's pretty much the only social platform where I haven't encountered hate. That's the ultimate success of a social space not dependent and incentivized by algorithms. God bless you all, even if you think differently than me.

2025-08-22 03:09:23 CEST

Gonna build an app to help no Sabos (Latinos that can’t speak Spanish) learn and practice Spanish with an AI voice call feature, inspired by Duolingo.
https://blossom.primal.net/6bbb458e5ebcd21a8dbfaec31c004e7d9d4b8a7cab8779defc4c0bf23dbbf628.mov

2025-05-29 22:08:53 CEST

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I feel like saylor is trying to de-risk the return of Satoshi. If microstrategy owns 1 million+ Bitcoin, Satoshi coming back becomes less destabilizing

2025-04-02 14:00:49 CEST

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What’s the hurry? You’re here forever.
https://m.primal.net/QBif.jpg

2025-02-15 12:14:17 CET

I believe sometimes Bitcoin folks can develop a rigid way of thinking that results in the preemptive rejection of good technology like Cashu’s protocol and its relationship and custodian operation.
Taking custody over money still has an enormous role in financial technology even with new interactions like zaps, e.g. it is likely that an education services or schools that creates scholarships or funds with education technology would likely take a responsible role in custody of funds for children or parents. It’s the nature of existing in a service economy. This alone could potentially manage billions of interactions.
It goes without saying that there is a first principle in the Bitcoiner mind centered around sovereignty or permissionless interactions, but it isn’t a law of the universe.
The rigidness could result in missing out on compelling technologies like the cashu environment, stablecoins and other smart contracts.

2024-12-31 18:09:15 CET

I like Damus a lot tbh. I end up using primal because I’m on a browser often but Damus is single handily the only thing motivating me to learn iOS development.

2024-12-07 13:16:26 CET

yay I created my first nutzap after just one day of learning with o1-pro! Exciting!
Thank you for the direction and pointers! @npub1l2v…ajft
https://m.primal.net/Mpdv.png

2024-11-27 05:42:43 CET

Seems like Bluesky is capturing the moment. Nostr has its work cut out for it when it comes to consumer psychology. It either has to join forces with the culture of X or Elon and co. have to blunder trust with their ideal client persona.

2024-10-04 23:30:00 CEST

Arrogant and foolish. Please don’t participate in my work to criticize and discourage when I’m here to do good. I experience enough hatred and frustration already. Constructive criticism is a lot more productive than whatever nonsense rant you have meant to discourage folks from creating and supporting others with less resources. Thanks. https://image.nostr.build/2772053cd199f07927212629cd1c0da2e4843eaa26221df4e463fb82357fddd6.jpg #note1q53…7dww

2024-09-25 01:38:58 CEST

Folks genuinely lack so much common sense.
I can either:
A) Work 40-80+ hours a week and capitalize with my community for $10/months+
or
B) Work 5-10 hours a week as a “non-profit” and provide education things for free

2024-09-25 01:21:31 CEST

Test 1234

2024-07-22 18:30:46 CEST

Who I am & why I exist re- #introductions https://video.nostr.build/d6772035074f78feb001c98310f4a0bda4c4f3b9ae6907c3a21023baa759a1cb.mp4

2023-12-20 09:30:52 CET

zapping every 15 seconds when lecture videos get watched
https://m.primal.net/HUcr.png