One Query Across All Sources: Building a Unified Personal AI Assistant

Most personal search tools fragment user attention across isolated sources—email, notes, messages—creating cognitive overhead with no functional benefit. Terraphim solves this by unifying search across disparate sources with a single query, ranking results by relevance while maintaining end-to-end privacy through local Obsidian vault indexing and direct JMAP integration. This shift matters because it transforms the question from 'where did I store this?' to 'is this relevant?', reclaiming mental bandwidth for the decision that actually matters.