Regolith Index
A searchable index and dashboard of ~1,230 presentations from the Space Resources Roundtable (1999–2026).
It holds only titles, presenters and conference metadata. Every entry links out to the original on isruinfo.com or LPI/USRA, and no presentation files are hosted here.
It is independent and not affiliated with the Space Resources Roundtable, the Colorado School of Mines, LPI/USRA or isruinfo.com.
Structure
index.html: the whole front end (search, dashboard, browse, about). D3 is loaded from a CDN.data/parts/*.txt: the dataset, split into chunks. The build step scripts/assemble-data.js joins them into data/index-data.json.scripts/build-data.js: optional rebuild of the dataset from the public Google Sheet (SHEET_ID).api/search.js: server-side search. Rate-limited, and snippets are hard-capped at 300 characters in api/_lib.js.api/sources.js: "Find other public sources", using Claude with web search. It is off unless ANTHROPIC_API_KEY is set.api/contact.js: the corrections and takedown form, relayed via FormSubmit to CONTACT_EMAIL.api/health.js: liveness check.
Environment variables (Vercel)
| Name | Required | Purpose |
|---|
CONTACT_EMAIL | yes | Recipient of contact-form messages. Never exposed to the browser. |
ANTHROPIC_API_KEY | no | Enables the source finder. |
ANTHROPIC_MODEL | no | Defaults to claude-sonnet-5-5. |
SOURCES_DAILY_CAP | no | Daily source-finder call cap, default 300. |
Deploys automatically on every push to main.
