Has anyone tried doing this "in the ground" on a small, home garden sized scale, with their own setup?

There are commercial scale steamers which are available for $5k plus. As I understand it, hollow tines or spikes on the back of a tractor are pulled through the soil as steam is passed through them.

It would seem fairly easy to build a boiler and pipe steam to,say, a raised bed which is underlain by perforated pipe. Not mechanically inclined, however, I am afraid if I tried to build it, the whole deal may explode in my face. Would love to know if anyone has thought about or tried this.

Thanks,

Jim