Allmaps is build on the IIIF Georeference Spec. Sometimes we come up with ideas that would require an update of the spec to be useful everywhere it's used. Let's collect those cases here to prepare for a possible next version of the spec.

Here's the one's I'm thinking of currently:

• Specify more transformation types. Currently only polynomial and thin-plate-spline are specified as allowed string values, but @allmaps/transform implements more transformation types.
• Specify projection support. See the relevant projection support ideas.
• Specify handedness of the resource and geo coordinates, or at least if the handedness is equal or opposed (see https://github.com/allmaps/allmaps/tree/09596009e63f5d00f5a2c588fec540d15a81970c/packages/transform#handedness).