Blackwell Systems Blog

About

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Written by Dayna Blackwell.

Technical writing on developer tools, automation, systems programming, artificial intelligence and distributed systems.

Open Source Projects

Developer Tools

blackdot - Modular development framework with multi-vault secrets, Claude Code integration, extensible hooks, and health checks.

dotclaude - Profile manager for Claude Code. Switch between work/personal contexts, multi-backend routing.

gcp-secret-manager-emulator - Lightweight gRPC emulator for Google Cloud Secret Manager API. Local testing and CI/CD without GCP credentials.

Libraries

domainstack - Full-stack validation ecosystem for Rust: Type-safe validation with automatic TypeScript/Zod schema generation, serde integration, OpenAPI schemas, and web framework adapters (Axum, Actix, Rocket).

error-envelope - Consistent, traceable, retry-aware HTTP error responses for Rust APIs — no framework required.

vaultmux - Go library for unified secret management across Bitwarden, 1Password, and pass. Interface-first design with 95%+ test coverage.

err-envelope - Structured HTTP error responses for Go. Works with net/http, Chi, Gin, and Echo. Machine-readable codes, field validation, trace IDs.

Utilities

mdfx - Make your GitHub README stand out — tech badges (like shields.io, but better), progress bars, gauges, and Unicode text effects. Local and customizable.

pipeboard - Secure clipboard sharing over SSH tunnels. Share text between machines without exposing ports or using third-party services.

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