If we are willing to give up on growth and accept inefficiency we can have basic necessities for free.

Food

There is no point in keeping agriculture and agricultural land in free market. Most of the countries subsidise agriculture heavily already. Take all the land, form a giant distributed drone farm network, make it compulsory for everyone to take part in it like video games. Bonus if it's fully automated or has VR.

Reason nobody does this is the massive failure of communism which tried to do the same. The difference I believe was that they still needed people and falsely assumed that money is the problem while people are always the source of problem with or without money.

Difficulty: insanely hard. Every mf who has read history will oppose it.

Shelter/Home

Stop using homes as financial instrument and fix land and home rates. A free market here also makes little sense. Some land becoming more valuable doesn't straight away help get more of the same. Sure there will eventually be more built if there is an option to. But most of the times it's just expensive because it's expensive

Difficulty: insanely hard. It will cause an economic reset