diff --git a/doc/prior-art.md b/doc/prior-art.md
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@@ -1,6 +1,16 @@
 # Prior Art
 
+## CDC
 - [core-cdc] by Alejandro Cora González
+- [Carabas Research](https://lorrystream.readthedocs.io/carabas/research.html)
+
+## Zyp
+- https://github.com/cloud-custodian/cel-python
+- https://github.com/MacHu-GWU/polars_transform-project
+- https://github.com/MacHu-GWU/jsonpolars-project
+- https://github.com/MacHu-GWU/polars_writer-project
+- https://github.com/raw-labs/snapi
+- https://github.com/danthedeckie/simpleeval
 
 
 [core-cdc]: https://pypi.org/project/core-cdc/