coinos server — legacy coinos.io backend (Lightning, on-chain, Liquid) https://git.coinos.io/coinos-server.git/atom?h=regtest-fulcrum 2026-06-27T18:00:08Z 2026-06-27T18:00:08Z Adam Soltys adam@coinos.io 2026-06-27T18:00:08Z urn:sha1:e0a4a5e9d332f998456b637f5d8ba38563d19827 Adds a regtest Fulcrum service matching what prod runs, replacing the old electrs + ews bridge as the data/realtime backend for the Hal browser wallet. It connects to `bc` and gets instant block/mempool notifications over bitcoind's ZMQ (hashblock/hashtx), serving them to the browser over an Electrum WebSocket (:50003) — sub-second deposit + confirmation updates on regtest. - docker/fulcrum.Dockerfile: Fulcrum on ghcr.io/coinos/base (shares layers with the rest of the stack instead of a separate image tree). - compose.fulcrum.yml: opt-in overlay (`-f compose.fulcrum.yml up -d`), config + datadir under the gitignored data/ (seeded from sampledata by setup.sh). - sampledata/fulcrum/fulcrum.conf: regtest config pointed at `bc`, ZMQ enabled. - sampledata/bitcoin/bitcoin.conf: add zmqpubhashblock/hashtx (18508/18509) so Fulcrum can subscribe for instant notifications. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>