Python · NATS JetStream · Lance
Mercury
An observation-first system for market-data research.
A public alpha connecting Nephtys feeds, normalized events, signal experiments, and a replayable Lance archive.
Updated from public sources ·
A consumer of the streaming tools
Nephtys publishes events to JetStream. Mercury consumes them, produces signal intent, and archives event envelopes with broker sequence information for replay and redelivery analysis.
Current scope
The default observation mode records outcomes without placing orders. Explicit sandbox experiments are supported; live execution is disabled. The replay and backtesting model is deliberately basic, so this is presented as a systems experiment rather than evidence of trading performance.