Quentin Nivelais
Web3 Infrastructure Architect&Account Abstraction Specialist
I help blockchain projects ship production-ready infrastructure and wallet UX that doesn't suck.
Currently CTO at Frak Labs.
Latest Articles
View all →Chasing a Bun Memory Leak for 3 Days (The Answer Was 'Just Restart')
3 days debugging a Bun RSS memory leak on a Elysia.js backend. The fix was a scheduled pod restart via a health endpoint that lies to Kubernetes — and why we couldn't do anything else.
Writing a Native WebAuthn Tauri Plugin from Scratch (iOS + Android)
A step-by-step look at building a custom Tauri plugin for WebAuthn/passkeys on iOS and Android — including CBOR parsing, COSE key extraction, SPKI DER reconstruction, and the mobile dev TLS workaround.
The Supporting Cast: L'Atelier's Infrastructure Beyond the Orchestrator
An AI sandbox orchestrator needs more than just an orchestrator. Here's how CLIProxy, shared binary volumes, Verdaccio, and a single Helm chart turn L'Atelier from a VM launcher into a dev platform.
L'Atelier: Why I Deleted 8,702 Lines of Code to Move to Kubernetes
L'Atelier just went through its biggest architectural shift yet. I swapped a custom bare-metal Firecracker orchestrator for Kubernetes and Kata Containers — deleted 8,702 lines of code, gained portability, and traded sub-second boots for a system I can actually maintain.
Talk to Your AI Dev Team: L'Atelier Gets a Slack Bot and an MCP Server
L'Atelier now dispatches AI coding agents directly from Slack, powered by an MCP server and a system sandbox running an AI dispatcher agent. Here's how the architecture evolved.
Selected Work
Case studies →Frak Labs
Co-Founder & CTOBuilt WebAuthn smart wallet processing 100k+ daily loads. Cut infra costs by 85%.
Account Abstraction
Production ExpertProduction WebAuthn validator, Smart Sessions, ERC-7579 modules. Contributed to ZeroDev & Pimlico SDKs.
Infrastructure
Cost OptimizationMulti-cloud K8s without YAML. Contributors to eRPC, Ponder, SST. AWS to self-hosted migrations.
Gas Golfing
Ranked #2 GlobalExtreme EVM optimization contest. Deep assembly & memory management expertise.
Engineering Impact
I don't just use the tools—I write the code for the tools you use.
Get in Touch
Want to chat about Web3 infrastructure, Account Abstraction, or something you read? Reach out.