Right, I should have been more careful with the word "exactly". I don't think the proposed solution can be implemented, though.
If the "keepassxc" package is to be replaced by the two alternatives ("keepassxc-full" and "keepassxc-minimal"), you'd still need a transitional dummy package named "keepassxc". That package would depend on "keepassxc-full | keepassxc-minimal", giving the user a choice to satisfy the dependency by installing either of those. So far so good. What if the user doesn't explicitly choose, though? The idea is that an upgrade would keep the "-full" variant but "apt install keepassxc" would pull in the "-minimal" variant. How do you encode this in Debian package metadata?
I think both "apt install" and "apt full-upgrade" will simply choose the first alternative, so you get either "-full" in both scenarios, or "-minimal" in both.
If the "keepassxc" package is to be replaced by the two alternatives ("keepassxc-full" and "keepassxc-minimal"), you'd still need a transitional dummy package named "keepassxc". That package would depend on "keepassxc-full | keepassxc-minimal", giving the user a choice to satisfy the dependency by installing either of those. So far so good. What if the user doesn't explicitly choose, though? The idea is that an upgrade would keep the "-full" variant but "apt install keepassxc" would pull in the "-minimal" variant. How do you encode this in Debian package metadata?
I think both "apt install" and "apt full-upgrade" will simply choose the first alternative, so you get either "-full" in both scenarios, or "-minimal" in both.