Documents

This is the prototype's wiki: markdown topics that link to each other, to the domain model and to objects. Everything here is made up, a sandbox for trying d2.

Copperhead Mining is a made-up copper producer in British Columbia (CA-BC). It runs the Viper Ridge Mine on the prop-viper property, with its plant and camp.

The index.

How the sample model follows a drill campaign, using Frostline's 2026 program.

Frostline Resources is a made-up gold developer listed on the TSXV. Its main asset is the Frost Lake property in Ontario (CA-ON), home of the Frost Lake Main deposit.

Three doors, simple to complex. Pick one now; you can switch any time.

This is a project on d2: a notebook and an app in one, built with an AI.

The sample domain in mining-domain has 56 classes in eight groups. The [model graph](/domain/overview) shows them all; its Groups tab shows them group by group.

North Royalty & Streaming is a made-up royalty and streaming company. It doesn't operate mines: it pays up front for a share of other companies' production.

No longer a pointer.

- A room has a size. ^rooms-1

Readings come in; a limit decides who hears about it. alerts.notify stands in for a real channel such as email or a push message: here it only records what it would send,

A drill program comes back from the lab. Each hole is scored on its gram-metres (grade × width, summed over its intervals), graded by guarded rules, and the best hole mak

The smallest spec: one message and the rules that answer it. A rule's last payload goes back to whoever sent the message.

A made-up mining-company domain model for playing with domain tooling: the model graph (/domain/overview), the object browser (/dom) and the domain APIs. Converted from d

Placing an order: check the stock, price the lines, pick a discount, confirm. Each step is its own message, so each can be extended or replaced with rules of its own. The

Bringing a portfolio back to its targets. Each position is valued, compared with its target weight, and a guarded rule decides: buy, sell or leave it. Differences under 2

Three rounds of readings through alerts.

Frostline's fall program at the Aurora zone, through drill-results: five holes, one bonanza, one abandoned.

Sends hello's message twice and checks the answers.

Sample objects for mining-domain: three made-up companies (Frostline Resources, Copperhead Mining, North Royalty & Streaming) with their people, properties, deposits, dri

Three orders through order: a member's, a big one from a guest, and one the stock can't cover.

A small resource book drifted after a run in gold, through rebalance: one well over target, two under, two on target, and a 1,500 cash reserve to keep: the buys share wha

Short how-tos, each a few steps. Pick what you want to do; the guides below go deeper.