Ideally, everyone is learning art, science, coding and engineering, etc.
So basically, there is still labor, it is just far less, and you are working for yourself,
While working for you, you document and fix bugs if you can, or push improvements upstream, to be reviewed etc.
Your local aquaponics fail? You and or your neighbors fix it, and you give them a beer or two you brewed :3
The idea is constant incremental improvements.
A market could still exist, as long as its not ravaging the planet.
We need a little balance and to close loops and simply life by distributing the complexity and basically making everyone ubber earthships.
Preferably 100% sustainable materials.
Also, some care needs to be taken to limit overpopulation etc.
Right now though, if a concerted effort were directed at popping everyone off grid and get them printing / iterating design / learning by doing and studying etc.
This would disrupt most of the industries responsible for the destruction of the ecosystem.
Apple does not want modular upgrades / repairable design and incremental improvements, they want to sell you more phones.
Imagine of you yourself only used the contents of 1 system for your whole life, but had everything you needed,
Each man should not leave a scar on the earth, we should leave a green patch of peace.