EBS instance can't find NestJS nest command after being deployed

Question

Which is really strange because the logs indicate that the deployment is successful. That is, up until the `build` command is run.

eb-engine.log
```
2023/08/14 12:13:49.351094 [INFO] Using npm v9
2023/08/14 12:13:49.351108 [INFO] Running command /bin/su webapp -c npm --omit=dev install
2023/08/14 12:14:00.148235 [INFO] 
added 379 packages, and audited 380 packages in 11s

24 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
```

web.stdout.log
```
Aug 14 12:14:10 ip-172-31-33-13 web: > users-api@0.0.1 start
Aug 14 12:14:10 ip-172-31-33-13 web: > npm run build && npm run start:prod
Aug 14 12:14:10 ip-172-31-33-13 web: > users-api@0.0.1 build
Aug 14 12:14:10 ip-172-31-33-13 web: > nest build
Aug 14 12:14:10 ip-172-31-33-13 web: sh: nest: command not found
```

I don't understand. That exact same build was successfully deployed on Vercel and is working just fine there. So what's wrong with my EBS environment here?

Accepted Answer

Ok so the problem was that NestJS needs the CLI to be in the dependencies to work.
And it was only in the devDependencies. How it could possibly work on Vercel (even though the install command omits dev there too), I have no idea...

EBS instance can't find NestJS nest command after being deployed

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