CashuMints.space/.env.example

# cashumints.space configuration.
#
# Copy to .env and edit. Every value below is the built-in default, so an empty .env
# behaves exactly like no .env at all.
#
#   cp .env.example .env
#
# One file at the repo root serves all three packages. It is loaded by:
#   - api/  via node --env-file-if-exists=../.env (see api/package.json)
#   - web/  via web/scripts/load-env.mjs, imported from astro.config.mjs
#
# Real environment variables always win over this file, so a systemd unit or a
# one-off `PORT=9000 pnpm dev:api` still overrides it. .env is gitignored.

# ─── Ports ───────────────────────────────────────────────────────────────────
# The two servers `pnpm dev` starts. Change PORT and API_URL together: the web
# build and the dev proxy reach the API at API_URL, so they must agree.

# API HTTP port.
PORT=8787

# Astro dev server / preview port.
WEB_PORT=4321

# ─── Web ─────────────────────────────────────────────────────────────────────

# Where the build and the dev proxy reach the API. A build-machine address; it is
# never written into the markup a visitor downloads.
API_URL=http://127.0.0.1:8787

# Browser-facing API origin, baked into the markup and the islands. Empty means
# same origin: icons resolve to /icons and islands fetch /api, which the dev proxy
# and nginx forward to API_URL. Deliberately does NOT fall back to API_URL — a
# visitor's browser cannot reach 127.0.0.1. Set it only when the API answers on its
# own origin, e.g. https://api.cashumints.space
PUBLIC_API_URL=

# Canonical origin for canonical links, OpenGraph tags and the sitemap.
SITE_URL=https://cashumints.space

# ─── API storage ─────────────────────────────────────────────────────────────
# The API serves everything from its own database and nothing from a mint or a relay at
# request time, so a restart loses nothing: mint metadata, cached /v1/info payloads,
# reviews, probe history and the discovery cursor all live here. Icons live next to it
# as files. In production point both at a directory the service user owns.

# Which database. Unset means SQLite at DB_PATH below, which is what every existing
# deployment has and needs no setup at all. Set it to a postgres:// URL to use Postgres
# instead — put the API on one host and the database on another, run more than one API
# process, or fold the data into an existing backup and replication setup.
#
# Both backends create their tables on the first connection, so an empty database is
# the whole installation. To carry existing data across, in either direction:
#
#   pnpm --filter ./api migrate --to postgres://user:pw@localhost:5432/cashumints
#
# then set DATABASE_URL to the same value and restart. Stop the API first: migrating
# from a database that is still being written to copies a moving target.
#
# DATABASE_URL=postgres://cashumints:secret@localhost:5432/cashumints
# DATABASE_URL=sqlite:/var/lib/cashumints/cashumints.db

# SQLite file. Ignored when DATABASE_URL is set. Unset means api/data/, resolved from
# the source tree regardless of where you run from. Set it and it is taken as given: a
# relative path resolves against the working directory (api/ under every pnpm script),
# so prefer an absolute path.
# DB_PATH=/var/lib/cashumints/cashumints.db

# Postgres connections held open. Ignored by SQLite, which has exactly one. The default
# of 10 is well above what one indexer plus the read endpoints need.
# DB_POOL_MAX=10

# Cached mint icons, served at /icons/*. Files, not rows — they are kept here whichever
# database is in use, and `migrate` does not touch them.
# ICON_DIR=/var/lib/cashumints/icons

# ─── Nostr relays ────────────────────────────────────────────────────────────
# Three comma separated lists, all optional. Each one, unset or empty, falls back
# to the list of the same name in shared/src/nostr.ts; the values below ARE those
# defaults, spelled out so the relays this site talks to are visible in one place.
# Setting one replaces the default pool entirely — it does not add to it.

# Review and mint-announcement relays: kind 38000 and 38172. Read by the API
# indexer (probe/discovery cycles) and by the build-time "latest reviews" fetch.
# The union of the old site's read pool and its publish pool — the two differed,
# so reviews the old site published to snort/primal were invisible to it.
RELAYS=wss://relay.cashumints.space,wss://nos.lol,wss://relay.azzamo.net,wss://relay.snort.social,wss://relay.primal.net

# Profile relays for the BUILD (kind 0, prerendered reviewer names on the home
# page). A wider pool than RELAYS on purpose: relay.cashumints.space holds no kind
# 0 at all and snort/primal hold almost none, so the two aggregators below are what
# turn npubs into names. Read the PROFILE_RELAYS comment in shared/src/nostr.ts
# before trimming this — relay.nostr.band was measured and deliberately excluded.
PROFILE_RELAYS=wss://relay.cashumints.space,wss://nos.lol,wss://relay.azzamo.net,wss://relay.snort.social,wss://relay.primal.net,wss://purplepag.es,wss://relay.nostr.net

# Profile relays for the BROWSER: the same kind 0 lookup, done client side for
# pubkeys the build did not resolve. PUBLIC_ means it is baked into the shipped
# markup and a visitor's browser connects to these directly, so list only relays
# that accept public websocket connections. Normally kept equal to PROFILE_RELAYS.
PUBLIC_PROFILE_RELAYS=wss://relay.cashumints.space,wss://nos.lol,wss://relay.azzamo.net,wss://relay.snort.social,wss://relay.primal.net,wss://purplepag.es,wss://relay.nostr.net

# Review relays for the BROWSER: where the reviews panel reads from and where a
# newly signed review is published. Defaults to RELAYS above when unset, which is
# what production wants. Point it at a local relay to exercise the publish path in
# development without putting test reviews on the public network.
# PUBLIC_REVIEW_RELAYS=

# Relays used to reach a NIP-46 remote signer (the "Remote signer" and "Primal"
# login routes). Not review relays: these carry small encrypted RPC between this
# browser and the reader's signer app, so they have to be relays both ends can
# reach. Defaults to relay.nsec.app and relay.primal.net when unset.
# PUBLIC_CONNECT_RELAYS=

# ─── Indexer timing ──────────────────────────────────────────────────────────
# All are positive integers; anything unparseable falls back to the default.

# Minutes between probe cycles (every mint's /v1/info).
PROBE_INTERVAL_MIN=10

# Minutes between discovery cycles (relay scan for new mints and reviews).
DISCOVERY_INTERVAL_MIN=60

# Mints probed in parallel.
PROBE_CONCURRENCY=8

# Per-mint request timeout, milliseconds. Cashu mints only: a federation is not
# fetched directly, see below.
PROBE_TIMEOUT_MS=5000

# ─── Fedimint ────────────────────────────────────────────────────────────────
# A federation has no HTTP status endpoint of its own — confirming one is up means
# being a Fedimint client — so its status is read from an outside checker instead,
# once per probe cycle for every federation at once. Every row whose status came
# from here records that fact and its page prints it, so nothing implies this site
# opened a socket itself.
#
# Empty disables the lookup entirely: every federation then carries the `announced`
# status, which is the honest one for "nothing checks this". It is never inferred
# to be online or offline. See the "Ecosystems" section of README.md.
FEDIMINT_OBSERVER_URL=https://observer.fedimint.org/api/federations

# ─── Ranking ─────────────────────────────────────────────────────────────────

# Bayesian prior mean C. The neutral 3 is intentional — read the "Ranking" section
# of README.md before changing it. `global` uses the observed global mean instead,
# which is the literal BACKEND.md behaviour and ranks noticeably worse.
SCORE_PRIOR_MEAN=3

# ─── Tooling ─────────────────────────────────────────────────────────────────

# Dev server Boneyard captures against (`pnpm bones`). Defaults to WEB_PORT.
# BONES_URL=http://localhost:4321