JaviDev @JaviDevCrypto

Joined April 2026

Tweets

33
Followers

21
Following

42
Likes

151

JaviDev @JaviDevCrypto

2 months ago

@systemdesignone Playbook

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I created a playbook to help you learn API design. • Core API fundamentals. • Clean & scalable design principles. • Popular patterns used in real-world systems. • Practical concepts for interviews & building projects. 24 HOURS ONLY! To get it for free: 1 Follow @systemdesignone [MUST] 2 Like & Retweet to get DM 3 Reply "Playbook" Then I'll DM you the details.

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JaviDev @JaviDevCrypto

3 months ago

This is what has kept us busy during the last few weeks!

Faraday @faradaysigner

3 months ago

Quiet on the timeline, busy on the bench: we ported all of Faraday to the ESP32-S3. New display driver, capacitive touch, new camera, new power path Same Rust core, same air gap, keys live only in RAM, radios never initialized. It boots. It signs!

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La Familia @LaFamilia_so

4 months ago

Hablemos de nuestros miembros que están construyendo cosas increíbles. Ep. 4 de esta serie con @_cxalem, co-fundador de @faradaysigner. Una compañia que te permite firmar transacciones de Solana sin conexión, completamente offline.

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Superteam Balkan @SuperteamBLKN

4 months ago

We had @matija_sol cook up some tricky questions for other @superteam leads and got answers we're genuinely nervous to share. Hopefully not our last post...

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JaviDev @JaviDevCrypto

5 months ago

Playing with hardware for @faradaysigner !

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JaviDev @JaviDevCrypto

5 months ago

@SuperteamEarn @SuperteamNG @albertofdez20 @LaFamilia_so Thanks in the name of the @faradaysigner team @_cxalem @nahem ! . Making the ecosystem more secure every day!!!!

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Ika「🦑」 @ikadotxyz

5 months ago

crypto finally built airplane mode for your keys. @faradaysigner joins the IKA Space to talk air-gapped signing, QR-only wallets, and why your private keys should never touch the internet. no wifi. no bluetooth. no nfc. you just scan. set reminder ↓

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DEFICATALYST @CatalystSon

5 months ago

the biggest threat to crypto isn't the blockchain, it's the moment you click "Approve." in February 2025, the crypto industry witnessed one of its biggest security disasters when approximately $1.5 billion was stolen from Bybit. what makes the incident particularly alarming is that the attackers didn't break Bitcoin's cryptography, crack Ethereum's security or somehow defeat blockchain technology. Instead, they exploited the transaction approval process itself, manipulating what signers saw and ultimately causing a legitimate transaction to authorize something entirely different. and the scary part is how most crypto users looked at the incident and thought: “That could never happen to me.” but that’s exactly the wrong conclusion because the biggest threat to your wallet isn’t always someone stealing your private keys. sometimes, it’s you signing the wrong transaction. @faradaysigner was built to solve exactly that by keeping private keys completely offline and transforming complex transactions into clear, human-readable instructions before signing. stay with me 🧵↡ #ColosseumReview

SagaPad @sagapad_icm

5 months ago

Solana @colosseum Frontier Hackathon product directory is live and Solana CTs are prepping their reviews. Don't just write for free - Review & Earn by joining SagaPad’s #ColosseumReview Race to win $1,000 USDC! You're also helping Colosseum projects you like get discovered on X

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JaviDev @JaviDevCrypto

5 months ago

@JET_EUROPA_ @seenfinity Congratulations @seenfinity !!!!!!

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JaviDev @JaviDevCrypto

5 months ago

Thanks a lot to @LaFamilia_so for this, and for your continuous support on all the spanish projects!! Congratulations to my incredible colleagues at @faradaysigner, @nahem @_cxalem !!

La Familia @LaFamilia_so

5 months ago

Docenas de proyectos participaron en este pasado Frontier Hackathon por la oportunidad de ganar el sidetrack de LaFamilia. Recibimos propuestas de todo tipo, desde herramientas para creadores y DeFi hasta ideas completamente nuevas, resaltando el talento hispano. Después de

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JaviDev @JaviDevCrypto

5 months ago

@LaFamilia_so Muchas gracias @LaFamilia_so por este premio y por todo vuestro constante apoyo!

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JaviDev @JaviDevCrypto

5 months ago

@solana_sailor @colosseum @solana @solanamobile @superteam @toly @crabbylions I found our project @faradaysigner !!!

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JaviDev @JaviDevCrypto

5 months ago

@LaFamilia_so @faradaysigner Grande @_cxalem !

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Faraday @faradaysigner

5 months ago

Wondering how an offline device signs online transactions? QR codes. No Bluetooth. No WiFi. No NFC. Build a tx in any Solana app. The extension shows a QR. Scan it with a Faraday cage! Review on the device screen. Approve. Get a signed QR. Scan it back.

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JaviDev @JaviDevCrypto

5 months ago

@d3h3d_ @faradaysigner It’s always such a blast chatting with people who share the same mindset! Let's keep in touch and stay on each other's radar. Some great things will turn up.

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JaviDev @JaviDevCrypto

5 months ago

@LaFamilia_so @colosseum Iremos a hablar de @faradaysigner !!

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JaviDev @JaviDevCrypto

5 months ago

@danm_t @toly 😂😂😂

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JaviDev @JaviDevCrypto

5 months ago

@vibhu @solana Faraday Signer: security for everyone x.com/i/status/20541…

Faraday @faradaysigner

6 months ago

Our @colosseum submission is in We built an air-gapped Solana signer on a Pi Zero. No WiFi, no Bluetooth, no network. Keys never touch the internet. QR in, QR out! These have been incredible weeks of building!