Nix Development

Research-first Nix development using parallel Context7 docs queries for accurate, up-to-date information.

Workflow

1. IDENTIFY  → Match question to relevant repos
2. QUERY     → Launch parallel subagents to query Context7
3. SYNTHESIZE → Combine results into actionable guidance

Engineering checks

• Keep inputs and outputs explicit; validate external values at the module boundary with options, types, or assertions where a bad value would otherwise fail obscurely
• Preserve evaluation and build errors with context; do not mask failures through broad defaults or silent fallbacks
• Make package, source, and runtime ownership explicit in derivations; keep cleanup and platform assumptions local to the boundary that owns them
• Validate the user-visible result with the narrowest applicable eval, build, check, or VM test; do not test only formatting or implementation detail
• Add overlays, modules, dependencies, or abstraction only for a concrete consumer or platform need

Required follow-up reads

|Need|Read|When| |---|---|---| |Repository routing, Context7 queries, topic mapping|reference.md|Before selecting documentation sources|