I think Pyrogenesis worked with Arcbyt.  It seemed it didn't work out because the plasma melted the rock into lava/magma, but it seems they found a way to make it work with the Petra robot system. https://newatlas.com/technology/petra-thermal-drill-robot/?itm_source=newatlas&itm_medium=article-body   Another start-up called Earthgrid has designed a competing system that uses rotating discs. https://newatlas.com/energy/earthgrid-tunnel-boring-robot/  Could it be that pyrogenesis would sell torches to both companies?