diff --git a/docs/customization.md b/docs/customization.md
index 3c20a1d65..612b96032 100644
--- a/docs/customization.md
+++ b/docs/customization.md
@@ -346,6 +346,7 @@ Community schemas are not vendored into OpenSpec core — they live in their own
 | Schema | Maintainer | Repository | Description |
 |--------|-----------|-----------|-------------|
 | `superpowers-bridge` | @JiangWay | [JiangWay/openspec-schemas](https://github.com/JiangWay/openspec-schemas/tree/main/superpowers-bridge) | Integrates OpenSpec's artifact governance with [obra/superpowers](https://github.com/obra/superpowers) execution skills (brainstorming, writing-plans, TDD via subagents, code review, finishing). Adds an evidence-first `retrospective` artifact filling a gap Superpowers does not natively cover. |
+| `nanopm` | @nmrtn | [nmrtn/nanopm](https://github.com/nmrtn/nanopm/tree/main/openspec-schema) | PM-first workflow. Runs [nanopm](https://github.com/nmrtn/nanopm)'s planning pipeline (audit → strategy → roadmap → PRD) upstream of implementation. Bridges product planning to OpenSpec's spec-driven engineering workflow. Artifacts read from `.nanopm/` if present — proposal sources the audit, design sources the strategy, and tasks source the PRD breakdown. |
 
 > Want to contribute a community schema? Open an issue with a link to your repository, or submit a PR adding a row to this table.