Joseph Johnson, AI engineer

Personal agent

Lily

An always-on assistant that lives in the cloud: I reach it by chat or by phone, and it remembers, reminds and does the work.

One brain on the Claude Agent SDK, with a front desk that chats and calls while separate worker sessions run the long jobs. Its own memory, scheduler and call rules; apps through Composio; any action that changes something waits for my yes.

Stack Claude Agent SDK · Telegram · Twilio · LiveKit · Postgres · Oracle Cloud

Live: it chats on Telegram, and makes and takes phone calls.

Private for now

Piano and transcription studio

Pianova

A piano in the browser that listens to a recording, turns it into falling notes and lets you correct and export them.

Plain JavaScript, Canvas and sampled Web Audio, with MIDI input. Transcription runs locally in a browser worker on the Basic Pitch model; a local Node service runs FFmpeg for video import and export.

Stack JavaScript · Canvas · Web Audio · Basic Pitch · FFmpeg · Capacitor

A four-minute song becomes 1,793 notes, landing about 10 ms from their sound.

Local app

Portfolio

This room

The page you are in: my room at night in Riga, photoreal, with a robot that answers for me while I sleep.

Modelled and baked in Blender, drawn in three.js inside an Astro site; the screens are real HTML laid on the glass, and the robot’s chat is built on a small Worker.

Stack Blender · three.js · Astro · GSAP · Cloudflare Workers

About 7 ms a frame on a laptop GPU.

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Joseph Johnson

Work

Lily

Pianova

This room

About

Kerala

Riga

Role, company or project

Role, company or project

Finland

Contact