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June 1, 2025 PT Energy Logistics

Migrating a Legacy PHP/CodeIgniter Stack to Next.js

Notes from moving a logistics management platform off CodeIgniter to Next.js incrementally, without pausing feature delivery.

Next.jsCodeIgniterMigration

The setup

PT Energy Logistics runs its internal logistics management platform on a legacy PHP/CodeIgniter stack. The goal isn’t a rewrite from scratch — it’s an incremental migration to Next.js while the business keeps shipping features and fixes on the existing system.

Approach

  • Route new pages through Next.js first, keeping the CodeIgniter backend as the source of truth for data during the transition.
  • Prioritize the highest-traffic screens for migration so the team feels the benefit early.
  • Keep both stacks deployable independently to avoid a big-bang cutover.

What’s next

More detail on the migration playbook — routing strategy, auth bridging, and rollout sequencing — will land here as the project progresses.

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