One of them is literally a browser-based client-side project; would you expect it to be? https://replicad.xyz/ https://replicad.xyz/ (N.B. the Replicad studio

One of them is literally a browser-based client-side project; would you expect it to be? https://replicad.xyz/ https://replicad.xyz/ (N.B. the Replicad studio code editor on that site seems to be broken today, which is a bummer -- it wasn't when I last checked) CadQuery might not be in Ubuntu repositories on its own (same with Build123D -- these are python libraries really) but have you tried looking for cq-editor? (I think that's in Homebrew as well.) https://snapcraft.io/install/cadquery-editor/ubuntu https://snapcraft.io/install/cadquery-editor/ubuntu To be fair I'd probably install the VSCode support for Build123D and CadQuery instead, because 1) this is code-CAD and you really manage it as such, and 2) I'm not that fond of the cq-editor environment. https://marketplace.visualstudio.com/items?itemName=bernhard-42.ocp-cad-viewer https://marketplace.visualstudio.com/items?itemName=bernhard... https://github.com/bernhard-42/vscode-ocp-cad-viewer https://github.com/bernhard-42/vscode-ocp-cad-viewer This extension can install Build123D or CadQuery for you if you have a python setup for VSCode.