Question 1

What is Jevatar and what does it do?

Accepted Answer

It is an AI companion that replies only with facial expressions. You type a message, Jev judges it and picks one of 16 moods, and blobatar morphs the blob's face to show the reaction instead of writing any text back.

Question 2

How does Jevatar use Jev?

Accepted Answer

The Bun server exposes POST /api/react, which calls Jev to judge the message and return an expression. Low-confidence answers fall back to unsure, and exceptions fall back to sick, so the face always renders something.

Question 3

How do I run Jevatar locally?

Accepted Answer

Install with bun install, then bun run dev for development, which starts the API service and Vite with an /api proxy on the port 5173 it prints. For production, bun run build writes static files to dist/ and bun start hosts dist/ plus /api in one process on http://localhost:3000.

Question 4

What do I need before running Jevatar?

Accepted Answer

A TypeSafe API key from console.typesafe.ai/keys, stored in .env as TYPESAFE_API_KEY. The key exists only on the server side and is never delivered to the browser.

Question 5

Does Jevatar keep a chat history?

Accepted Answer

No. There are no text replies and no visible chat history; the recent turns are kept in memory only so Jev can judge context, as the README describes.

Question 6

What is blobatar's role, and what do the custom yes/no faces look like?

Accepted Answer

blobatar.dev morphs the face and handles transition animation, while src/expressions.ts maps expression keys to blobatar values and Chinese announcement words. Custom yes is a fast double nod with synchronized eye closing; no is two rounds of decreasing head shakes with a firm gaze.

Question 7

What are Jevatar's limits?

Accepted Answer

It communicates only through expressions, keeps no history, and the README shows no accuracy or latency benchmarks. The digest's evidence is a short README plus metadata, and the only test documented is the export-drift check in server.test.ts run with bun test.

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