An inherited briefing system that needed rebuilding rather than patching, and which then kept growing as people worked out what they actually wanted from it.
Rebuilt and redesigned the original system first. After that it has come in phases: an importer that maps spreadsheet columns onto the platform's own fields and validates before anything is committed, a custom-field system with global and per-sector scoping so teams can add what they need without every project inventing its own version of the same column, and the summary screens rebuilt as an editable data grid. The brief has moved throughout, which is normal for something people are still learning how to use.
Fully deployed over the last couple of months and now being tested in earnest by their team.
Started in July 2024 and still going. The codebase reached me as a one-gigabyte file transfer while the original repository was still being chased from the previous developers. The first phase was rebuilding what was already there; the second has been the tabular views, the importer and the custom fields. Remap do the design. I build it and run the infrastructure underneath.