# gashboard > a custom dashboard for the datum gateway running on umbrel. > for the four little boards that probably won't find a block, but are trying their best. Polls a local Datum gateway (OCEAN's open-source mining gateway), shows live per-miner hashrate, share counts, lottery odds, and a tongue-in-cheek read on how unlikely it all is. Designed for a small fleet of solo-style hobby miners (Bitaxe, NerdQAxe, Avalon Nano 3, Avalon Mini 3) hashing into one Datum on Umbrel. ## What it shows - **Pool hero** — combined hashrate, current block height being templated, mempool fee snapshot, datum connection status. - **Per-miner cards** — nickname, ASIC type, location, live hashrate, accepted/rejected shares, last-share age, status light, firmware string from `useragent`. - **Lottery widget** — P(block in 24h) at current network difficulty, with rotating self-deprecating commentary. - **Live share ticker** — sparkline + scrolling feed of recent accepted shares. - **Sats-today counter** — earnings projection from current hashrate × network reward. - **Map panel** — pins for each location (split by remote IP from Datum's `/clients`), pulse-per-share. - **Block celebration** — confetti + sound the day it finally happens. ## Auth Nostr-only login (NIP-98 over HTTP). Two signers supported: - **Remote signer** (NIP-46) — covers Primal app, Amber, nsecbunker. - **Browser extension** (NIP-07) — Alby, nos2x, etc. Allowlist of npubs is set via `NOSTR_ALLOWED_NPUBS`. Anything else is rejected before a session token is issued. ## Stack - **Frontend** — Vue 3 + Vite + Pinia + TypeScript - **Backend** — Express + TypeScript - **Auth** — `nostr-tools` (NIP-98 verify), `applesauce-*` (signer abstraction, lifted from indeehub) - **Container** — multi-stage `node:22.12.0-alpine` (pinned by SHA256 in Dockerfile) ## Deploy on Portainer (the way it'll actually run) 1. **Enable Datum admin API** on your Umbrel — edit `~/umbrel/app-data/datum-gateway/data/datum_gateway/datum_gateway_config.json` and add `"admin_password": ""` inside the `"api"` block. Restart the Datum app. 2. **Push this repo** to your gitea/whatever: ```bash git push -u origin main ``` 3. **In Portainer → Stacks → Add stack → Repository**: - Repository URL: `https://git.tx1138.com/lfg2025/gashboard` - Compose path: `docker-compose.yml` - Add env vars (see `.env.example`) - Set `DATUM_NETWORK` to the network attached to `datum_datum_1`: ```bash docker inspect -f '{{range $name, $_ := .NetworkSettings.Networks}}{{$name}}{{"\n"}}{{end}}' datum_datum_1 ``` - On Umbrel this is usually `umbrel_main_network`, which is the compose default. - Leave `DATUM_URL` unset unless you need to override it. The default is `http://datum:21000`, which uses Datum's Compose service alias and avoids Umbrel's host proxy and stale container IPs. 4. Open the dashboard, log in with one of the allowed npubs, watch your boards lose at hashing in style. ## Local dev ```bash pnpm install pnpm dev # runs api + web concurrently ``` ## License MIT.