Keirsdad

Keirsdad is a collection of focused, single-purpose productivity tools that
prioritise privacy, offline functionality, and simplicity. Each tool does one
thing well — no bloated platforms, no tracking, no accounts required.

The suite currently includes four tools: a habit tracker for daily, weekly,
and monthly habits with streaks and journal entries; a weighted pros and cons
tool for structured decision-making; a memorise tool for learning any text
word by word; and a speed reader using RSVP with optimal recognition point
highlighting.

All tools work entirely offline using IndexedDB for local storage. Users can
optionally enable cross-device sync via Dexie Cloud for a flat yearly fee
processed through Stripe. No data is collected, no analytics are tracked, and
no cookies are used.

The project is built as a Turborepo monorepo with a Next.js 15 marketing site
at keirsdad.com and four Vite-powered React apps on subdomains. Shared
packages provide a unified UI system, sidebar, and configuration across all
tools. The stack includes React 19, Tailwind CSS 4, TanStack Router, and
TypeScript throughout.