Migration Case Study — <project / org>

Fill every field. Remove none. Unverifiable claims will not be merged.

Summary

• Source framework & version:
• StreetJS version:
• Date / duration of migration:
• Team size & effort (person-days):

Motivation

Why migrate? What problem with the source framework prompted it?

Approach

• Strategy (big-bang vs incremental / strangler):
• Which StreetJS features replaced which source-framework pieces:
• Tooling used (e.g. the Express/Nest/Fastify migration guides):

Effort breakdown

| Area | Effort (person-days) | Notes | |——|———————|——-| | Routing/controllers | | | | Data layer | | | | Auth | | | | Tests | | |

Performance delta (optional, must follow the verification standard)

• Methodology + reproduction:
• Before vs after (raw numbers, percentiles):
• Environment:

What was hard / surprising

Honest friction points (helps others and the maintainers).

Outcome

Current state in production? Would you do it again?