gen-env Skill Generate or review a command that enables running multiple isolated instances of a project on localhost simultaneously (e.g., multiple worktrees, feature branches, or versions). The Problem Without isolation, multiple instances of the same project: - Fight for hardcoded ports (3000, 5432, 8080) - Share Docker volumes → data corruption - Share browser cookies/localStorage → auth confusion - Have ambiguous container names → can't tell which is which - Risk catastrophic cleanup → nukes everything The Solution: Instance Identity Everything flows from a workspace name : Isolation Dim…