add duckdb extension template for zig and nix

README.md

@@ -144,6 +144,7 @@
 - [duckdb-jfr-extension](https://github.com/ocadaruma/duckdb-jfr-extension) - DuckDB extension to read JFR (Java Flight Recorder) files directly.
 - [QDuckDB](https://gitlab.com/Oslandia/qgis/qduckdb) - Plugin for reading DuckDB spatial tables in QGIS software.
 - [ERPL](https://erpl.io) - DuckDB SAP connector using RFC, ODP, or BICS.
+- [duckdb-extension-template-zig](https://github.com/rupurt/duckdb-extension-template-zig) - A Zig & Nix toolkit template for building extensions against multiple versions of DuckDB using Zig, C or C++
 
 ## Media
 
@@ -174,6 +175,7 @@
 - [Modern Data Stack in a Box](https://duckdb.org/2022/10/12/modern-data-stack-in-a-box.html) -  Fast, free, and open-source Modern Data Stack deployed on a laptop using the combination of DuckDB, Meltano, dbt, and Apache Superset.
 - [How to use DuckDB, Motherduck and Kestra for ETL](https://motherduck.com/blog/motherduck-kestra-etl-pipelines/) - How DuckDB can transform data, mask sensitive PII information, detect anomalies in event-driven workflows, and streamline reporting use cases.
 - [DuckDB vs. MotherDuck — how do they compare](https://kestra.io/blogs/2023-07-28-duckdb-vs-motherduck) - What are key differences between them, and when to choose each of these options.
+- [Building DuckDB Extensions with Zig and Nix](https://rupurt.github.io/posts/building-duckdb-extensions-with-zig-and-nix) - For Nix users and Zig developers familiar with DuckDB looking to extend it’s capabilities with custom extensions
 
 ## Contribute