factcircuit
FactCircuit: an auditable claim-and-evidence verification loop with immutable provenance, staged checks, bounded retrieval, and reproducible evaluation.
Pre-configured data platform: ingestion, transformation, dashboards, and notebooks. Built on dlt, dbt, DuckDB, Metabase, and Marimo. Free and open source.
DataPython · HTMLGitHub @getdangoOnlineOwner unconfirmed
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Your complete data platform — dlt, dbt, DuckDB, and Metabase, self-hosted and free
Taken from the repository README
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Open-source data platform for small teams.
Dango gives you a complete data stack — ingestion, warehouse, transformations, and dashboards — with the operational machinery a self-assembled stack doesn't have: sync queue management, lock recovery, empty-replace protection, schema drift detection, credential health checks, and backups. It combines dlt for data loading, DuckDB as the analytics database, dbt for SQL transformations, and Metabase for dashboards. One pip install, one command to start.Read the full README ↗Open-source data platform for small teams.
Dango gives you a complete data stack — ingestion, warehouse, transformations, and dashboards — with the operational machinery a self-assembled stack doesn't have: sync queue management, lock recovery, empty-replace protection, schema drift detection, credential health checks, and backups. It combines dlt for data loading, DuckDB as the analytics database, dbt for SQL transformations, and Metabase for dashboards. One install, one command to start.
Upgrading from v0.1.x? v1.0.0 is a complete rewrite. Back up your data and run
dango initto create a new v1 project. See the migration guide for details.
Prerequisites: Python 3.10-3.13, Docker (for Metabase and dbt docs)
macOS / Linux:
curl -sSL https://getdango.dev/install.sh | bash
Windows (PowerShell):
irm https://getdango.dev/install.ps1 | iex
Prefer pip?
mkdir my-project && cd my-project
pip install getdango
dango init
dango start
Open http://localhost:8800 to see your data platform.
For detailed installation instructions, see the documentation.
dango mcp setup
Connects Claude Code, Cursor, or Windsurf to your project over MCP — your agent can set up sources
(credentials stay in your .env, never in the chat), sync, build and document dbt models, manage
schedules, check PII findings and schema drift, diagnose failures, and run read-only queries with
PII columns masked. Remote tools default to a dry run. See the
full guide for the complete tool reference
and worked examples.
dango deploydango backup lists and restores local project backupsData Sources page — monitor syncs, row counts, and schedule status for all your data sources.
Data Catalog — browse tables, explore columns with profiling stats, view data lineage.
dbt Models — view model status, run transformations, and track test results.
Sources → dlt → DuckDB → dbt → Metabase
(APIs, (load) (warehouse) (transform) (dashboards)
CSVs,
databases)
All data stays local in DuckDB. No external warehouse needed.
| Component | Tool | Role |
|---|---|---|
| Ingestion | dlt | Load data from 35 sources |
| Warehouse | DuckDB | Embedded analytics database |
| Transformation | dbt | SQL modeling and testing |
| Dashboards | Metabase | BI and SQL queries |
| Web UI | FastAPI | Monitoring and management |
| Containers | Docker | Metabase and service orchestration |
Full documentation at docs.getdango.dev.
See CONTRIBUTING.md for development setup and guidelines.
Apache 2.0 — see LICENSE for details.
Dango is honest about what it doesn't do yet. The short version — full detail at docs.getdango.dev/reference/limitations: