How to search Addresses in Matrix Blocks?

[lindseydiloreto]

This has come up a few times, and there's never been a concrete answer...

When the Addresses are stored within a Matrix field, what is the correct way to do a proximity search?

There is a lesser-known query method for craft.matrixBlocks, but it doesn't work with orderBy('distance').

✅ {% set matrixBlocks = craft.matrixBlocks.all() %}

❌ {% set matrixBlocks = craft.matrixBlocks.myAddressField(options).orderBy('distance').all() %}

If we can crack it, I'll be happy to document the solution.