THE TECHNOLOGY ALREADY EXISTS, IN 3 DIFFERENT MACHINES
In Vermont, a man named Tyler McNaney has made a tabletop machine, the Filabot, that can recycle household plastic into filament. Construction machines exist to do it to our scale.
Small multi-material printers exist, and the software is open source, a gift from M.I.T. (the world is so interesting and beautiful).
Components are open-source and available.
Materials are ecological, standard, and available.
This technology is ready to be deployed by the builders of Quebec.