Styx Protocol · Founder
1 DeveloperSlashy
Founder & Solo Developer: Styx Protocol
24 years old, based in Paris.
Epitech alumni with a Master's in Cybersecurity and 7+ years of coding experience.
No team, no funding, just execution.
Devnet onlyTest SOL, no real funds. Not externally audited, and v1 will not go to mainnet.
00The figures
- Years Coding
- 7+
- 2019 →
- Solana Programs
- 4
- p01_stark_verifier, zk_shielded, p01_registry, and p01_relayer, which is deployed and not operated.
- devnet · getMultipleAccounts · slot 505,697,136 · 2026-09-29
- STARK Circuits
- 8
- stark/src/air
- Days Built
- 255
- 2026-01-18 →
- Developer
- 1
- Client Apps
- 3
- The web app is live. The mobile app and the extension are paused: the current verifier rejects their proofs.
- README.md
01Mission
Why I Build This
I believe financial privacy is a fundamental right, not a feature.
Every blockchain transaction today creates a permanent trail, your salary, subscriptions, donations, everything is public.
That's not transparency, that's surveillance.
- My goal is not to build a product, it's to build an ecosystem.
- A web app today, and developer SDKs. A mobile app and a browser extension too, both paused: their released builds make proofs the current verifier rejects.
- One person, building each layer.
02Journey
From Curiosity to Protocol
- 2007
Computers at Six
Fascinated by computers since age 6. Started exploring how things work under the hood.
- 2019
Started Coding
Self-taught developer at 17. Fell in love with building things from scratch.
- 2022
E-Commerce
A professional start building e-commerce platforms. Learned the business side of tech.
- 2023
Bachelor's: Full-Stack Dev
Epitech Paris. Graduated as a Full-Stack Developer. Built 18+ projects across web, mobile, and backend.
- 2023-24
CaptNBoat: Dev & PM
Full-stack developer and project manager. Led cybersecurity initiatives and product development for 2 years.
- 2025
Master's: Cybersecurity
Epitech Paris. Specialized in offensive security, cryptography, and secure architecture.
- 2025
Freelance & Hackathons
Went independent. Started competing in Solana hackathons. Built the earliest version of Protocol 01.
- 2026
Styx Protocol: Part Time
Continuous solo development since January 2026. Submitted to Colosseum Frontier 2026.
- 2026
Spout Finance: Lead Protocol, Full Time
Joined Spout Finance in 2026, full time.
03Scope
What One Dev Can Build
A filled square runs today. A hollow one is paused, closed, or a limit.
On-Chain Infrastructure
- Solana programs in Anchor and Rust, four of them live on devnet
- A shielded pool: shield, withdraw, subscribe, pause, resume, claim
- An on-chain STARK verifier over Goldilocks, FRI included
- A relayer program, deployed and not operated since 2026-08-28
Client Applications
- This web app on Next.js 16, the only client whose proofs the verifier accepts today
- A merchant SDK, its demo and its documentation
- A mobile app in Expo and React Native, paused
- A Chrome extension on MV3, paused
Privacy Layer
- Stealth addresses: X25519 + ML-KEM-768, keyed from the Ed25519 wallet
- 1 SOL notes in one shielded pool; a web spend publishes no commitment
- This deployment knows which older note it hands you, and can spend it until you do
- On a quiet pool, the minutes between a payment and a spend can pair them
The Quantum Line
- Proofs from Poseidon and Merkle trees, with no elliptic curve inside
- Transaction signatures stay Ed25519: Solana verifies nothing else
- Stealth and note keys are derived from the Ed25519 wallet key
- The WOTS+ vault and the hash-timelock vault: closed on devnet on 2026-09-13