Izentrop, you write:
Working without a machine today is difficult to achieve, except exceptional niche.
Absolutely! The amount of work that is produced by doing without a machine is only paid on the part of the work that would have been necessary with the machine, the rest is provided without remuneration. Admittedly, another source that labor exists, it is the rent and there is a small rent resulting from the preference of consumers for organic products, but this rent is today captured by bigger players than supermarkets and exotic "organic" (oxymoron!) producers, the latter often having a very minimalist conception of organic.
Another rent would be a very specialized culture of niche that would not be measured against other forms of production, with the risk of launching a market to be dispossessed as soon as it is functional ...
Another form of retribution, as already mentioned, is the “uberized” exploitation of free or reverse retribution work, of trainees: a new manifestation of absolute surplus value.