How to make a View with 50 000 or more docs/records in Db, showing only the persons docs, based on the "readeronly" field for 10 000 users or more. No re-indexing problem when index is ready!
You must have a form with your selected info fields. It must include a visible readerfield for examples called ReaderNamesList, and for safety and for update all docs for admin, an author field with default value of the ACLs admin Role, example: [AdmRole].
Make a View that select form over, and with the first column, as hidden, and a formula as follows:
@Name( [Abbreviate]; @Subset( ReaderNamesList; 1 ) )
Make some more columns with values from field on form.
It must have ticked off, "Ascending", "Categorized" "Show multiple ....", "Hidden" in the Column prop.
View prop should have refresh "Automatic",
Then make a Page, with an embedded View created over with the formula "@Name([Abbreviate];@UserName) " in Show Single Category
Easy you can launch the page on the dBs prop on open, and voila: you have a personalized view, showing only the personal selected docs in the view, based on an already refreshed view.
If you have an integration with relational dB and populate the db. from there, it is important that you populate and write to the readerfield with the correct value.