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C. Celaya
Video

Nineteen builds, on tape.

18 recordings · 2020-2026

Recordings of things actually running. No slides, no narration over a mockup. The oldest is a 2020 screen capture, the newest were shot on a phone at the bench in 2026 and are hosted here. Each one plays on its own page, with a note on what is on screen and, where it came off YouTube, the title YouTube still has on it.

The bench, 2026

Phone recordings, hosted here, nothing loads from YouTube. A power supply that answers to a voice, a chat terminal on an ESP32 tablet, a rhythm game, and a Game Boy cartridge rewritten so you catch my models instead of Pokémon.

Applied intelligence, 2023 to 2024

Chat platforms, generative imaging, a mock interviewer that grades you back, and a training run left uncut. What I was building while the models got good.

14:39

A chat platform, top to bottom

YouTube · AI Chatbot Platform

The longest recording here. Fourteen minutes walking a chat platform end to end, from the interface a user sees down to the wiring underneath it.

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5:14

Hopekeeper, a chatbot for people inside

YouTube · "Hopekeeper" Demo - AI Chatbot for prison inmates

A chatbot built for people serving time. Still a prototype, still carrying bugs, and it does the job it was built for. The name is the whole design brief.

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4:24

Image generation, wired as a graph

YouTube · Generative AI Imaging Demo using ComfyUI

Building an image pipeline in ComfyUI, where every step is a node you can see and rewire. The graph is the point. Nothing happens off screen.

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2:07

It listens, it looks, it answers

YouTube · LLM Multimodal Voice Image Assistant

An assistant taking voice and images in the same turn. The notebook behind it is public: the video description links the gist.

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5:04

Moonlight Sorting

YouTube · Moonlight Sorting

Five minutes of a reinforcement learning agent training on a sorting task, built the way the Unity ML-Agents examples are built. The agent is not told the rule. It finds it by repetition.

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25:57

A training run on Snake, at full length

YouTube · Training the game Snake

Twenty-six minutes of a model learning to play Snake, with nothing cut. The middle is the useful part, where it is still getting it wrong.

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5:18

The interviewer that grades you back

YouTube · AI Mock Interviewer

A mock technical interview run by a model. It asks about hash tables, hears a wrong answer, and writes the feedback explaining exactly where the answer went wrong.

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2:34

A paid ChatGPT clone, billing and all

YouTube · Building an ChatGPT Subscription Service Clone

Not the chat window, the business around it. Accounts, a subscription, and the gate between a visitor and a paying user. Seven weeks after ChatGPT shipped.

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Web3 and infrastructure, 2022

Two from 2022, when the open question was who owns a name and whether an action inside a game could settle against a real balance outside it.

VR, games, and teardowns, 2020 to 2022

Where the timing work started. VR maps, the tooling to cut them faster, and one short teardown of a login flow.

If something here is close to the thing you need built, describe it in three sentences and I will tell you plainly whether it fits.

Email hello@celayasolutions.com ↗