Per local/AGENTS.md \xC2\xA7 "Category 2 - Local forks of upstream packages",
all Cat 2 forks must use the `<upstream-tag>-rb<N>` version convention. The
`-rb1` suffix is a Cargo pre-release identifier that prevents upstream
`<upstream-tag>` from silently substituting for this fork in transitive
dependency resolution.
- The base tag (e.g. 0.9.0 for redox_syscall) tracks upstream
unchanged.
- The `rb1` part records that one Red Bear patch round has been
applied on top of the upstream tag.
This is the initial policy enforcement pass. The branch is
considered unfrozen at this point; once a freeze is declared, future
`-rbN` increments will land on a frozen `0.X.Y` branch per
local/AGENTS.md.
PackageGroup struct with description + package list. Groups are defined
in [[package_groups.NAME]] TOML sections and resolved by
resolve_package_groups() during Config::from_file(). Supports nested
groups (groups referencing other groups) with cycle detection.
Explicit [packages] entries override group membership.
Adds PartialEq derive to PackageConfig for dedup during merge.
3 unit tests: nested groups, explicit override, no-groups compat.
Red Bear OS