FreeCAD / FreeCAD

Open-source parametric 3D CAD modeler for designing real-world objects, built on OpenCASCADE and Coin3D.

shiaho777 / web-to-app

Android app that builds APKs from web projects entirely on-device, with embedded server runtimes and signing for Google Play.

docusealco / docuseal

Open source platform for creating PDF forms that people fill and sign online, with a self-hostable web app.