`export`/`restore` handed back `Map<String, Band>` where the string was the INTERNAL key — `"<relay-url> <filter-json>"`. That is fine for a file layer that writes the key back verbatim, and nothing else. A layer that wants its own layout — one object per relay, or per filter, or nested by both — had to split the key apart, and the separator was folklore it could only learn by reading this class. Two of them now do. So the key is a pair, with the joined form kept here as `encode`/`decode` for a file that does want one key per line. geode keeps its format byte-for-byte and stops pattern-matching on somebody else's string. It is also faster on the path that matters. `key()` built a new string per lookup, so a `legs()` over a fan-out COPIED the filter's json — tens of thousands of characters for an author-scoped filter — once per relay per cycle, then hashed all of it, since a freshly built string carries no cached hash. The pair hashes two halves it already holds: the url, and the fingerprint instance the cache above it already returns. No behaviour change: the same pairs key the same bands, a file written before this reads back through `decode`, and the format on disk is untouched.
geode
A standalone Nostr relay for the JVM, built on Quartz's relay-server code (Ktor CIO). It speaks the core relay protocol plus NIP-11 (info doc), NIP-42 (AUTH), NIP-45 (COUNT), NIP-50 (full-text search), NIP-77 (Negentropy sync), and NIP-86 (relay management), stores events in SQLite (or a filesystem backend), and can mirror upstream relays strfry-router style.
geode depends only on :quartz — no Android, no Compose. amy serve (the
Amethyst CLI) embeds the same engine in-process.
Install
Pick the channel that matches how you deploy. For a real relay, the Docker
image or the .deb/.rpm + systemd are the two production paths;
Homebrew and the portable tarball are handy for local testing.
Docker (recommended for servers)
Images are published to GHCR on every release:
# Ephemeral — in-memory store, events vanish on restart:
docker run --rm -p 7447:7447 ghcr.io/vitorpamplona/geode:latest
# Persistent + configured:
docker run -d --name geode -p 7447:7447 \
-v $PWD/geode.toml:/etc/geode/geode.toml:ro \
-v geode-data:/var/lib/geode \
ghcr.io/vitorpamplona/geode:latest --config /etc/geode/geode.toml
with in_memory = false and file = "/var/lib/geode/events.db" in your
geode.toml. Pin a version (:1.13.1) instead of :latest for reproducible
deploys. To build the image yourself, from the repo root:
docker build -f geode/Dockerfile -t geode:local .
Debian/Ubuntu (.deb) and Fedora/RHEL (.rpm)
Download geode-<version>-linux-x64.deb (or .rpm) from the
release page and install
it — a minimal JRE is bundled, so no system Java is required. It installs to
/opt/geode/ with the launcher at /opt/geode/bin/geode.
sudo dpkg -i geode-1.13.1-linux-x64.deb # or: sudo rpm -i geode-1.13.1-linux-x64.rpm
To run it as a managed service, wire up the shipped systemd unit
(/opt/geode/share/geode/geode.service) — the unit file's header comment has
the copy-paste steps (create the geode user, drop your config in
/etc/geode/geode.toml, systemctl enable --now geode).
Homebrew
brew install vitorpamplona/tap/geode # from the tap, once published
The formula depends on openjdk and installs the no-JRE jar bundle. Reference
formula: packaging/homebrew/geode.rb.
Portable tarball (any Linux/macOS, no system Java)
Download geode-<version>-<os>-<arch>.tar.gz, unpack, and run:
tar xzf geode-1.13.1-linux-x64.tar.gz
./geode/bin/geode --config geode/share/geode/config.example.toml
The tarball bundles a jlink'd JRE plus share/geode/config.example.toml and
share/geode/geode.service.
From source
./gradlew :geode:run --args="--config /etc/geode.toml"
Configure
geode runs with zero config (binds 0.0.0.0:7447, in-memory SQLite). For
anything real, copy config.example.toml and edit it —
the sections mirror nostr-rs-relay's config.toml so existing configs port
almost verbatim. Precedence is CLI flags > TOML > built-in defaults.
geode --config /etc/geode/geode.toml
geode --help # full flag list
geode --version
Key sections: [info] (NIP-11 doc), [network] (bind + thread pools),
[database] (SQLite path/tuning), [options] (AUTH / verify / search),
[authorization] (allow/deny lists), [[mirror]] (upstream mirroring), and
[admin] (NIP-86 management). See the example file for every knob.
Verbs
geode [relay] [flags] serve the relay (default)
geode import [flags] [FILE…] bulk-load NDJSON events into the store
geode export [flags] dump the store as NDJSON to stdout
import/export are geode's strfry import / strfry export — one JSON event
per line, for seeding, migrating, or backing up a relay. Both stream, so a
multi-million-event corpus round-trips in roughly constant memory.
Release process
geode ships on the same tag-driven pipeline as the rest of Amethyst: pushing a
v* tag runs .github/workflows/create-release.yml, whose build-geode job
produces the tarball + .deb/.rpm + Homebrew jvm bundle, docker-geode
builds and pushes the GHCR image, and bump-homebrew-geode-formula.yml syncs
the reference formula. Design notes:
plans/2026-07-24-geode-release.md.