Developer Uses 10 Parallel Codex Sessions to Revamp Legacy Codebase

A developer opened 10 parallel Codex sessions to tackle a legacy codebase, fixing 15 bugs, cutting memory usage 10x and boosting performance 5x.

2026-08-29 ~ 2026-08-29 · 2 related posts

• The joy of unleashing 10 concurrent Codex sessions on a pre-LLM codebase — cnakazawa · 2026-08-29
• Developer fixes 15 bugs, cuts memory 10x, speeds up library 5x with Codex — cnakazawa · 2026-08-29