Unitech / Unitech/pm2

Bun Interpreter Not Working on Latest PM2 Version

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Dominant language
JavaScript
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Description

I have installed the following:

  • NVM version 0.40.1
  • Node version 23.10.0 installed at "/home/wesley/.nvm/versions/node/v23.10.0/bin/node"
  • PM2 version 6.0.5 installed at "/home/wesley/.nvm/versions/node/v23.10.0/bin/pm2"
  • Bun version 1.2.5 installed at "/home/wesley/.bun/bin/bun"

I am unable to run PM2 using Bun as the interpreter even when I specify the install location of Bun. PM2 shows it as running, but when I try to access the API application, it does not work. When I use Bun directly, it works. This problem has only occured since I upgraded to use the new version of PM2 (version 6.0.5). Examples below I have tried:

  • pm2 start ./index.ts --name "api" --interpreter bun - NOT WORKING
  • pm2 start ./index.ts --name "api" --interpreter /home/wesley/.bun/bin/bun - NOT WORKING
  • pm2 start ./index.ts --name "api" --interpreter=/home/wesley/.bun/bin/bun - NOT WORKING

The only command that does work is the following, however I don't know if this will prevent PM2's auto restarts for errors:

  • pm2 start "bun run ./index.ts" --name "api"

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue with NVM 0.40.1, Node 23.10.0, PM2 6.0.5, Bun 1.2.5, and the listed pm2 start commands for ./index.ts. Compare the Bun interpreter commands with pm2 start "bun run ./index.ts", including whether the API starts and restarts after errors; done means Bun works through PM2 with the expected auto-restart behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
bun, javascript, nodejs, typescript
Domain
cli, devops
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Needs clarification
Newbie friendliness
38/100

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