BonusBitcoin bonus
Fulcrum
Fast and nimble Electrum-compatible SPV server, a performance-focused alternative to Electrs.
Migration in progress
This bonus page hasn't been rewritten for RaspiBolt v4 yet. The v3 version still works, see the original guide on GitHub while we port it over.
Fulcrum is a fast SPV server for Bitcoin, Bitcoin Cash, and Litecoin written in C++ by Calin Culianu. Independent benchmarks rank it as one of the quickest Electrum server implementations available, which makes it a solid alternative to Electrs when you want lower query latency.