The query syntax helper creates two different types between TypeBox 0.25:

And 0.26:

While the local package tests are passing, in a generated app this means that any operator like

app.service('messages').find({
  query: {
    createdAt: {
      $gte: Date.now() - 24 * 60 * 60 * 1000
    }
  }
})

Will receive a TypeScript error like this:

Property '$something' is incompatible with index signature.
          Type '<type>' is not assignable to type 'never'.

The current solution is to revert to TypeBox 0.25 and probably add a better integration like

Type.QuerySyntax(queryProperties, ['text', 'id'])

To v5.1