Ezekiel Lemana

Full Stack Dev | Python·React · Flutter · Node.js · AI Integration

Founder of

[Ezekiel Lemana @enzo_lemana]

Who moves the money? 🤔

In SarafuPay the AI prepares the PayPal payout, but only the organiser's one-time code can send it 🔐 Then everyone gets the receipt with a signed proof ✅

The AI prepares. You approve. Everyone sees.
@paypaldev @PayPal @ag_grid @render @devpost

[Ezekiel Lemana @enzo_lemana]

The countdown is on ⏳
One builder. One dream. Built for Tanzania 🇹🇿
Let's go @AIatMeta @baseten @FireworksAI_HQ @modal @MetaforDevs

[Ezekiel Lemana @enzo_lemana]

Updated my @AIatMeta hackathon demo: 2:27 of SarafuPay running live, no slides 🎥

Real WhatsApp-style chat in Kiswahili, signed proof cards and an AI treasurer, all on Meta models.
👉 https://t.co/A4Iq6fI7y6
@MetaforDevs @cerebral_valley @baseten @FireworksAI_HQ @modal

[Ezekiel Lemana @enzo_lemana]

Fine-tuned Meta's open Muse Glimmer on 687 Kiswahili + English WhatsApp messages 🇹🇿

0% → 90% on messages it never saw. Simple questions now skip the heavy path: 56% fewer tokens ⚡
@metaai @FireworksAI_HQ @MetaforDevs #MetaAIHackathon

[Ezekiel Lemana @enzo_lemana]

@paypaldev Tip 2 is exactly how SarafuPay started 🙌 Group contributions in Tanzania always end with "who paid?" so I built an AI treasurer on WhatsApp with @paypaldev checkout and payouts. https://t.co/jlP1cVyPNt

[Ezekiel Lemana @enzo_lemana]

@raedle Honoured that @raedle featured SarafuPay 🇹🇿 Group money on WhatsApp, in Kiswahili, verified by @AIatMeta @MetaforDevs

[Roman Rädle @raedle]

🧵 (16/22)

SarafuPay by @enzo_lemana puts group money on WhatsApp in Kiswahili, with every payment verified by SAM 3.1, Muse Spark, and Seamless.
https://t.co/GZgXWifagc

[Ezekiel Lemana @enzo_lemana]

@eddiejaoude @colleencodes @andrewdmaclean Building SarafuPay for the @paypaldev hackathon 🚀 An AI treasurer on WhatsApp: friends chip in with PayPal, the AI tracks who paid, and it can't send a payout without the organiser's one-time code. Took the advice: writing the demo story first 🎬 https://t.co/jlP1cVyPNt

[Ezekiel Lemana @enzo_lemana]

@eddiejaoude @andrewdmaclean @colleencodes @JamesSwintonDev @CCafeo @FrancescoCiull4 @adityaoberai @hey_amandam Late but thank you for yesterday's space Eddie 🙏 Best tip for me: write the demo script before the code and build only what's in it. Back to building SarafuPay for the PayPal AI Hackathon 🚀

[Ezekiel Lemana @enzo_lemana]

@paypaldev @PayPal @ag_grid @render @devpost Runs fully on @render : web service, Postgres, Key Value and a cron that recovers missed PayPal webhooks ⚙️

[Ezekiel Lemana @enzo_lemana]

Who moves the money? 🤔

In SarafuPay the AI prepares the PayPal payout, but only the organiser's one-time code can send it 🔐 Then everyone gets the receipt with a signed proof ✅

The AI prepares. You approve. Everyone sees.
@paypaldev @PayPal @ag_grid @render @devpost

[Ezekiel Lemana @enzo_lemana]

@paypaldev @PayPal @render @ag_grid The treasurer dashboard runs on @ag_grid AG Studio 📊 thanks for the support!

[Ezekiel Lemana @enzo_lemana]

SarafuPay is a WhatsApp AI agent for group money: one chat, one link, friends pay with PayPal from anywhere 🌍 and every payout gets a signed proof 🔒

Built for the PayPal AI Hackathon @paypaldev
@PayPal @render @ag_grid https://t.co/tIEOodogTf

[Ezekiel Lemana @enzo_lemana]

@ConWanZo @MetaforDevs @AIatMeta @cerebral_valley @Meta Thanks! Receipts + signatures feel like the right pattern for Muse Spark: AI explains, the proof decides 🔐 QorTime's match referee is a cool twist on it. Good luck! 🙌

[Ezekiel Lemana @enzo_lemana]

Day 1 of the Meta AI Hackathon 🚀

Snap a receipt and SarafuPay's agent checks it with SAM 3.1 + Muse Spark, then hands everyone a signed proof 🧾✅ Group money, with proof 💚

#MetaAIHackathon @MetaforDevs @AIatMeta @cerebral_valley @Meta

[Ezekiel Lemana @enzo_lemana]

Just submitted SarafuPay to the Meta AI Hackathon 🇹🇿
Group money on WhatsApp, in Kiswahili, where every payment is verified by Meta AI: SAM 3.1, Muse Spark, Seamless 🎙️
>2-min demo 👇
https://t.co/aXwGAdkCgq
@AIatMeta @cerebral_valley @MetaforDevs
@Meta

[Ezekiel Lemana @enzo_lemana]

@raedle @AIatMeta Love this combo! 🙌 We use SAM 3.1 to crop the proof on payment receipts in SarafuPay 🇹🇿, and next we want Muse Wonder thank-you videos for contributors. Our key still gets model_not_found for muse-wonder-1.0, any tips?
https://t.co/eo0c2iJJYM

[Ezekiel Lemana @enzo_lemana]

"Nani bado hajalipa?" 🤔

Our agent now checks every payment, finds out *why* someone hasn't paid, and drafts a friendly reminder, sent only when you say ndiyo ✅

Built with Muse Spark for the #MetaHackathon @MetaforDevs @cerebral_valley @metaai @Meta @MetaforBusiness