Housing First:

Housing First, which is distinct and separate from "rapid re-housing", is a relatively recent innovation in human service programs and social policy regarding treatment of the homeless and is an alternative to a system of emergency shelter/transitional housing progressions. Rather than moving homeless individuals through different "levels" of housing, whereby each level moves them closer to "independent housing" (for example: from the streets to a public shelter, and from a public shelter to a transitional housing program, and from there to their own apartment in the community) Housing First moves the homeless individual or household immediately from the streets or homeless shelters into their own apartments.

Housing First approaches are based on the concept that a homeless individual or household's first and primary need is to obtain stable housing, and that other issues that may affect the household can and should be addressed once housing is obtained. In contrast, many other programs operate from a model of "housing readiness" — that is, that an individual or household must address other issues that may have led to the episode of homelessness prior to entering housing.

https://en.m.wikipedia.org/wiki/Housing_First

The only reason Homelessness has become such a huge problem is that American politicians at every level of government have unanimously decided on an "incarceration first" solution.

There is no law enforcement solution to homelessness, mental illness or drug addiction. The only solutions are mental health and social services approaches, which have been unanimously rejected by the political elites for decades. Low income housing was initially slashed by Reagan and never recovered. America's low income housing stock is at an all time low. The rent is too damn high. https://en.m.wikipedia.org/wiki/Rent_Is_Too_Damn_High_Party

Low income housing may be the most neglected and ignored infrastructure problem in America. It is just barely even on the political radar.

Of course "incarceration first" is a very lucrative approach for the prison industrial complex. As far as the political elites are concerned, incarceration first is the unanimously agreed on approach to practically every problem you can think of.