Hi, I'm Thea.
A software engineer building a small, self-hosted corner of the internet — a journal, a manga library, a media shelf, and a handful of things I made while studying computer science.
What's here
A handful of small apps
Each is gated behind a sign-in, except the last one.
A private, long-form journal — markdown, tags, together with a timeline.
A private way of tracking monetary transaction, as an individual or in groups.
A self-hosted manga reader with per-series progress, pulling chapters from a handful of sources.
A media and comics browser for files that live only on local machines, streamed straight from it.
Course work, research reproductions, and visualizations from my studies — most of it public.
Public work
Something for everyone
Interactive pieces from my coursework — no account needed.
Build, balance, and query a KD-tree step by step, with nice animations.
The same interactive treatment for range trees — build, query, and inspect the hierarchy.
An analysis of Eurovision voting blocs, visualized for the Graph Drawing Contest 2026.
Under the hood
Built with
- Svelte 5
- TypeScript
- Tailwind CSS
- Drizzle ORM
- PostgreSQL
- SQLite
theas.at — built and maintained as a hobby project by Thea