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Everything I’ve shipped, with the receipts.

Solo builds, spec-driven with AI workflows. Each case study covers the idea, how it was built, and where AI fits next.

01

Cairn

2026mvp · daily driver

A capture-first, offline PWA: anything you notice lands in seconds, gets turned into action, and shows up on one Today screen.

A 21-feature PRD, turned into a working offline app.

solo · full stackNext.jsTypeScriptSupabaseDexieSerwistread the case
02

Gerbil

2026live

A mobile-first money tracker: type an amount, sort it out later. Virtual funds inside real accounts, and holds that keep “safe to spend” honest.

Specified down to the edge cases: the 31st, offline duplicates, over-allocated funds.

solo · full stackNext.jsMongoDBTypeScriptread the case
03

Scout

2026in progress · ai

The RAG chatbot behind the little robot on this site. It answers questions about my work from my own content, with sources.

Practising what chapter 03 preaches, in public.

solo · AI projectNext.jsVercel AI SDKpgvectorLangfuseread the case

© 2026 Kaveen Hyacinth · built quietly, refined with AI · λάθε βιώσας

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