---
id: "0001"
date: 2026-05-01
status: Accepted
supersedes:
superseded-by:
affected-paths: [lib/store.rb, config/database.yml]
affected-components: [store, persistence]
---

# 0001 — Use SQLite for local persistence

## Context

The app needs durable local storage with zero external services; data volume is small (thousands of rows) and single-user.

## Decision

All persistence goes through SQLite via lib/store.rb; no external database server is introduced.

## Consequences

Zero-dependency deploys and trivial backups; concurrent writers are not supported, which is acceptable for a single-user tool.

## Alternatives rejected

Postgres rejected: operational overhead unjustified at this scale. Flat JSON files rejected: no query capability and easy corruption.