I'm a PhD researcher and research software engineer at CML, the Institute of Environmental Sciences at Leiden University. I write open software and collect open data for industrial ecology and the circular economy.
- 🌐 Projects and CV: simonvanlierde.github.io
- 🔧 Main project: R9lab, where we record what products are made of by taking them apart (app.r9lab.io)
- 🆔 ORCID: 0009-0006-6953-909X
Right now I'm getting the R9lab teardown data ready for its first citable release, fixing and benchmarking the LCA and input-output libraries I use (Brightway, pymrio, flodym), and keeping a few small tools going, like jsonvet and credit-matrix.




