If you just want the DE and to configure everything else yourself, you can always just install phosh or sxmo on top of a debian/raspbian installation.
Mobian/Droidian are targeted for smartphone SoCs, so they would take a lot of tinkering to get runnin on an RPi
If you want a full OS that’s already configured to be a smartphone-like device, something like Glodroid may be your best bet. They’re an infrequent updater, the only reason I mention them is because they can target Broadcom devices (like RPis)
If you don’t mind getting away from building the hardware yourself, and just want a phone that you can run linux on, FairPhone/PinePhone/Librem 5 seem to be the way to go
Aside from that, afaict you’re in for designing your own device from extant components and then crowd-funding to pay for a factory line to assemble it for you (this is essentially what the PinePhone did)
If you just want the DE and to configure everything else yourself, you can always just install
phoshorsxmoon top of a debian/raspbian installation.Mobian/Droidian are targeted for smartphone SoCs, so they would take a lot of tinkering to get runnin on an RPi
If you want a full OS that’s already configured to be a smartphone-like device, something like Glodroid may be your best bet. They’re an infrequent updater, the only reason I mention them is because they can target Broadcom devices (like RPis)
If you don’t mind getting away from building the hardware yourself, and just want a phone that you can run linux on, FairPhone/PinePhone/Librem 5 seem to be the way to go
Aside from that, afaict you’re in for designing your own device from extant components and then crowd-funding to pay for a factory line to assemble it for you (this is essentially what the PinePhone did)