# About

> Project stewardship, historical roadmap, licensing, upstream attribution, trademark policy, and SBOM for the PGSTY Mooncake ecosystem.

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LLMS index: [llms.txt](/llms.txt)

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**`mooncake.pgsty.com`** is the companion documentation and engineering site for the [**PGSTY**](https://github.com/pgsty) forks of the **Mooncake** real-time analytics ecosystem for PostgreSQL and DuckDB:

| Repository | Current Tag | License | Upstream Origin | Description |
|:---|:---|:---|:---|:---|
| [`pgsty/pg_mooncake`](https://github.com/pgsty/pg_mooncake) | [`v0.3.0`](https://github.com/pgsty/pg_mooncake/releases/tag/v0.3.0) | `MIT` | [`Mooncake-Labs/pg_mooncake`](https://github.com/Mooncake-Labs/pg_mooncake) | Columnstore table extension for PostgreSQL (`pgrx 0.19.3`, `pg_duckdb 1.2.0`). |
| [`pgsty/duckdb_mooncake`](https://github.com/pgsty/duckdb_mooncake) | [`v0.0.2`](https://github.com/pgsty/duckdb_mooncake/releases/tag/v0.0.2) | `MIT` | [`Mooncake-Labs/duckdb_mooncake`](https://github.com/Mooncake-Labs/duckdb_mooncake) | DuckDB `2.0.0` storage extension attaching to Moonlink real-time Iceberg tables. |
| [`pgsty/moonlink`](https://github.com/pgsty/moonlink) | [`v0.0.1`](https://github.com/pgsty/moonlink/releases/tag/v0.0.1) | `BSL-1.1` + Exception (`MIT` client crates) | [`Mooncake-Labs/moonlink`](https://github.com/Mooncake-Labs/moonlink) | Rust engine ingesting real-time streaming updates and CDC into Apache Iceberg and Parquet. |
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## Sections


- [Roadmap](/docs/about/roadmap/) — Historical upstream `v0.2` feature roadmap and current PGSTY maintenance focus (`v0.3.0+`).
- [License](/docs/about/license/) — `MIT`, `BSL-1.1` with the `PG_MOONCAKE LINKING & DISTRIBUTION EXCEPTION`, and `CC-BY-4.0` documentation terms.
- [Attribution](/docs/about/attribution/) — Mooncake Labs origins, Wayback Machine documentation recovery provenance, and repository lineage.
- [Trademark Policy](/docs/about/trademark/) — Trademark acknowledgments and independence statement for the PGSTY distribution.
- [SBOM \& Security Audit](/docs/about/sbom/) — Submodule pin matrix (`versions.json`) and the 2026-11-05 Cargo RustSec dependency security audit.

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Section pages:

- [Roadmap](/docs/about/roadmap/): Historical v0.2 feature roadmap from Mooncake Labs and current PGSTY maintenance focus.
- [License](/docs/about/license/): Open-source and source-available licenses across pg_mooncake, duckdb_mooncake, moonlink, and mooncake.pgsty.com.
- [Attribution](/docs/about/attribution/): Upstream credits to Mooncake Labs, Wayback Machine documentation recovery provenance, and repository lineage.
- [Trademark Policy](/docs/about/trademark/): Trademark acknowledgments and independence statement for the PGSTY Mooncake distribution.
- [SBOM & Security Audit](/docs/about/sbom/): Software Bill of Materials (versions.json), submodule pin matrix, and the 2026-11-05 Cargo RustSec dependency audit for pg_mooncake 0.3.0.