Environment Requirements

Engine (GFlow Engine)

Dependency	Requirement
Go	1.24+
RuleGo	v0.37+
Database	PostgreSQL / MySQL built in; other databases (DM, KingbaseES, etc.) are supported via DialectProvider extensions — see Custom Database Dialect. Unit tests run against an in-memory SQLite database through a custom dialect, so no database installation is required

Dependency	Requirement
Operating system	Linux / Windows / macOS (switch freely via Go cross-compilation)
Go	1.25+ (to build the server from source)
Node.js	≥ 20.19 (the minimum for Vite 7; 24.x recommended). The frontend repo gflow-ui uses pnpm (enforced by a preinstall check — npm will simply fail)
Database	PostgreSQL (recommended for production) or MySQL; domestic Chinese databases and others connect via dialect extensions — see Custom Database Dialect
Hardware	2 CPU cores and 2 GB RAM are enough to get started (the demo environment runs rock-solid on a cloud instance with 1.9 GB of memory)
Optional	Redis (distributed locking for multi-instance deployments)

The gflow server listens on :8080 by default (REST API; the make release single binary with the embedded frontend also serves the frontend static assets)
Frontend dev mode (when customizing the frontend): :9521