The libraries and examples for the Analog Shield and the Analog Shield2 are developed in a separate repository, not in this board package. This repository keeps only the core, the board variants, the libraries tied to the core (SPI, Wire) and the tools. The roadmap stages for the shield libraries (old Stages 2 and 6) are removed and the remaining stages renumbered.

A shield is an add-on, not part of the board. Keeping its libraries apart follows the usual Arduino pattern: install the board package from the Boards Manager, then install the shield library from the Library Manager or a ZIP. The two can be released on their own schedules, so a library fix does not need a new board package and the reverse. The board package stays smaller, and a shield library written against the standard Arduino API also works on other boards.

A second repository with its own CI, which should compile the examples against the Phyduino core from the Boards Manager URL. Each library release must state the lowest core version it needs. Board details the library uses (pin names, ADC channels) must come from the variant headers, not be copied into the library.