Is your feature request related to a problem? Please describe.
DataCite support some resourceType for Projects.
https://api.datacite.org/dois?query=types.resourceTypeGeneral:Other%20AND%20types.resourceType:Project
Currently there are a handful of universities populating this type of doi's; According to the datacite FAQ's the upcoming RAid-identifier aims to use this resourceSubType and may have some own GeneralType in some of the upcoming versions.

Describe the solution you'd like
We would like some importer for doi's from datacite allowing to import projects from some doi source.

Describe alternatives or workarounds you've considered
Currently (OR2024) there are only 554 projects doi's in datacite, but this number could increase in the next years. This feature could help to increase the acceptance of project identifiers.
Directly accessing the Raid identifier and it's id (https://datacite.org/raid/) could be some option. But currently (OR2024) there is no open released API available. Also researchers might directly recognize the structure of some raid which is aligned to the doi schema. So in future it might be needed to name the import source doi/raid.

The work necessary would be a copy and modification of the current datacite import implementation and some additional filterquery mechanism for the resource-type.

Additional context
Also by now these Projects can be imported as Publication which is slightly wrong.

Update 2024-12-11:
The current datacite schema 4.6 as released on 2024-12-05 contains some new resourceTypeGeneral:Project .
https://api.datacite.org/dois?query=types.resourceTypeGeneral:Project

https://api.datacite.org/dois?query=(types.resourceTypeGeneral:Other%20AND%20types.resourceType:Project)%20OR%20types.resourceTypeGeneral:Project