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@j178

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Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLO

Achievements

Achievement: Public SponsorAchievement: Pull Sharkx3Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLO

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simonvanlierde/README.md

Simon van Lierde

PhD researcher and research software engineer at the Institute of Environmental Sciences (CML), Leiden University. I build open, reproducible research infrastructure for industrial ecology and the circular economy. Main stack: Python, FastAPI, TypeScript/React, PostgreSQL, and Docker.

Featured project

R9lab

Industrial ecology has long been short of data on what products are made of. R9lab helps close that gap by recording how durable goods come apart. I designed and built it end to end: a FastAPI backend, a PostgreSQL data model built for life-cycle assessment (LCA), and an Expo/React Native frontend. By 12 October 2026 we had taken apart 94 products and catalogued 1,779 components and 4,455 photos, in the lab and at two teardown workshops with 135 participants.

Selected work

  • monitoring: one OpenTelemetry pipeline for the logs, traces and metrics of R9lab and CML's other research platforms
  • msc-thesis-ie: my MSc thesis on how much cooling the buildings in The Hague need and its life-cycle impact (dashboard)
  • cv-ie-taxonomy: a computer-vision taxonomy for industrial ecology, drawn as an exploded teardown you scroll through (live)
  • credit-matrix: co-authors write a CRediT contribution statement together, in the browser (live, Zenodo)
  • check-json5 and project-templates: small tools I maintain for my own work

Elsewhere

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  1. CMLPlatform/r9lab CMLPlatform/r9lab Public

    Open-source research platform for collecting and publicly sharing product disassembly data. Built at CML, Leiden University, to support industrial ecology and circular economy research with better …

    TypeScript 3

  2. CMLPlatform/r9cam CMLPlatform/r9cam Public

    A FastAPI-based REST API to control Raspberry Pi cameras remotely. Tested and verified on Raspberry Pi 5 with Camera Module 3. This API is a component of the R9lab platform.

    Python

  3. msc-thesis-ie msc-thesis-ie Public

    Bottom-up cooling-demand model and life-cycle environmental impact assessment of residential and office cooling in The Hague — MSc thesis in Industrial Ecology.

    Python 1

  4. credit-matrix credit-matrix Public

    Draft CRediT contribution statements with your co-authors, and export a contribution heatmap or JATS4R XML, CSV, JSON or Markdown. Runs in the browser, works offline, in nine languages. Also an npm…

    TypeScript

  5. jsonvet jsonvet Public

    A pre-commit hook that accepts JSON5 in .json files. A drop-in replacement for check-json that allows comments and trailing commas, without giving up the C parser's speed on ordinary JSON.

    Rust 1

  6. CMLPlatform/monitoring CMLPlatform/monitoring Public

    Central OpenTelemetry observability stack for CML research platforms: Grafana, Loki, Tempo, Prometheus

    Shell