From chaos to control with Node.js, NVM, and PM2: production pattern for mixed runtimes

Mixed legacy/new Node workloads become unstable when relying on global runtime. This model stabilizes production by isolating runtime per app and managing processes with PM2.

Core pattern

• install required Node versions with NVM;
• pin interpreter path per app in PM2 ecosystem;
• enable PM2 startup persistence;
• monitor restart loops and memory behavior;
• keep rollback path by preserving previous runtime.

Final takeaway

NVM handles compatibility; PM2 handles uptime. Together they make mixed Node operations predictable.

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