# Sharing portals # Sharing portals Delivery also Providers Builds secure external file-sharing portals: hosted sign-in, private folder browsing, per-user grants, administrator-managed accounts, a custom domain, runtime configuration and a design-matched interface. - **Used when** — When people outside the organisation need controlled access to files and a shared link is not an acceptable answer. - **Loads first** - The front-end and back-end skill, and the design-to-code skill. - The responsive-test skill, and the continuous-integration skill. - The shared engineering guidelines. - **Returns** - The architecture summary and the repository layout changes. - The authentication and administrator-access design. - The per-user file grant model. - The interface implementation notes, and the files changed with the reason. - Tests added or updated, with commands and results. - The deployment path, the required configuration, and the promotion route between environments. - A deployment runbook and rollback notes. - A security verification checklist and any residual risk. ## Others in Delivery - Analytics instrumentation - Application scaffolding - Design implementation - Design testing - Interface triage - Marketplace architecture