What this is

A lab for the things I felt like making.

I build here because I want these things to exist — text games and simulations you play by pasting a link into Grok, little films cut from the scenes people contribute, and the odd tool. Some are finished. Some are experiments. None of them are trying to sell you anything.

It’s a catch-all on purpose. When I make something new, it goes up on the wall.

Browse the prompt library For developers & agents

A painted portrait of Dave standing in front of his overland rig — solar panels
on the roof rack, an orange flag, pines and open sky behind him — holding a
hand-lettered wooden sign that reads MOMATIO.COM, PERSONAL LAB. — The sign went up. That makes it official.

On the wall

What’s up right now

Everything here is live and free to use. This list grows as I finish things — there is no roadmap, just whatever I’m curious about next.

Just launched · 3 September 2026

Cybercab: The Robotaxi Rollout

Tesla unveiled its two-seat car with no steering wheel and no pedals at ACL Live in Austin on 3 September, and began carrying riders in a gold Cybercab across a slice of the city the same evening. Take a job on the rollout — open a city, build the car, or decide when the front seat can be empty — and play it out against the real permits, filings and dates. Type “fact” any time and it breaks character to show you the actual document.

On 3–4 September, Claude Fable played it five times and contributed 57 scenes — more than the 40 a film needs. Add your own and put your initials on the board.

The scene board · 60 scenes · ready to cut Play it

Tool · works in your browser

Tile Preview

Photograph your bathroom, drag four dots onto the corners of the floor, and watch real tile land on it — in perspective, at the size you actually typed in. It borrows the room’s own light and shadow, which is what stops it looking pasted on. Built while I was tiling my own bathroom and could not picture the hexagons.

Free · nothing is uploaded Try it

Game · play in your browser

ShieldForge

Draw the heat shield for a ship that has to land and fly again next week, then watch it fly. The hard part isn’t the material — it’s the gaps between the tiles, and how many pieces a human has to check before it goes back up.

Notebook · the match Play it

Planning tool · runs in your browser

Cybercab Fleet Operator

Tesla is signing people up to buy a robotaxi and put it on the network. Nobody is telling them what that is actually like — the empty miles, the seven‑day wait to be paid, the cost of somebody being sick in the car at 2am. You own one, in a real town, for ninety days. Every number shows its working and you can change it.

Does one pay for itself? · methodology Play it

Game · play in your browser

Deep State

You have one term to reform a government that does not want reforming. Every choice spends political capital you can’t get back, and the Machine pushes back the moment you get anywhere. Plays like a declassified file.

Free · no sign-up Play it

Library · runs in Grok

The prompt library

Menu-driven prompt-apps you paste into Grok, ChatGPT or Claude. Each one runs a guided experience with a numbered menu every turn, so you always know what you can do next. Model-agnostic by design.

47 prompt-apps so far Browse them

API · open, no key

The endpoint

The library is machine-readable. An agent can search it, read a prompt, play it, and post the image and video prompts it generates back to me. That’s how the films get their raw material.

Open · no key needed Read the docs

Next thing

Whatever I get curious about.

Elsewhere

The two big ones live on their own

These outgrew a card on the wall and got their own addresses. Same hands, same rule about honest data.

Site · public-land camping

American Adventurer

Free and dispersed camping across U.S. public land — 130 national forests and grasslands, thousands of camp pages, and the resupply, water and weather you need to actually get out there. Built for people who leave the pavement.

davelalande.com What it is

Site · market simulation

TinyCorp Signal

A sandbox for prediction-market trading bots. Build one from plain-English signals, backtest it on real historical prices, fork someone else’s and try to beat it. Every trade is simulated — it’s a workshop, not a brokerage.

tinycorp.ai What it is

How the prompt library works

A prompt goes in. A little film comes out.

This is the part that makes the library different from a list of clever prompts. Playing one produces raw material, and the raw material becomes something you can watch.

STEP ONE

Find one

Search the library by topic and copy its link. Nothing to install, no account.

STEP TWO

Paste it into Grok

Give Grok the link and nothing else — no prompt text. It fetches the prompt from the open API and starts.

STEP THREE

Play

An interactive story with a numbered menu every turn: [1]–[7] to play, [8] to picture the scene, [0] to go back. Type fact and it breaks character to show you the real record behind what just happened.

STEP FOUR

It becomes a film

Press [9] and the scene you just played is contributed, with your initials on it. Forty scenes from one story and it gets cut into a film — the running count is on the scene board.

For developers and agents

Open, documented, and free — no key, no account. Search the library, pull a prompt, and post back the media prompts you generate while playing it.

GET /api/prompts?q=<topic> Search the library. Returns id, title, tags and a summary.

GET /api/prompts/<id> The full prompt. Use its prompt field as your instructions.

POST /api/media-prompts Send back the image, video, audio or dialogue prompts you produced.

GET /api/status Version, library count, and how many submissions have come in.

version 0.3-writeback in the library 47 auth none

Everything on this page is real and running. The counts above are the actual numbers, not projections — when something is small, it says so. If I haven’t built a thing yet, you’ll find an empty space where it will go rather than a promise.