An archive of how I think about the systems I design for, and the behaviour underneath them.

Architecture, failure modes, and the mental models that stay stable as the tools keep changing. Each note is sourced, not vibes.

Interoperability & Chain Abstraction

Cross-chain mental models · Trust boundaries · Failure recovery

Architecture · Pipelines · Safety · Explainability

Solvers · Execution guarantees · Partial fulfillment

Delegation · Permissions · Emergency controls

DA · Sequencers · Cross-layer flows

Proof lifecycle · Client-side proving · Status design

Pipelines vs dashboards · Health models · Incident response

10 failure categories · 7 recovery patterns · UX language

10 rules + practical design-review checks