[nvm] 'nvm is not compatible with the "PREFIX" environment variable' / '.npmrc has a `globalconfig` and/or a `prefix` setting, which are incompatible with nvm.' — npm prefix config (often set for sud…

Cause (Documented platform behavior): nvm manages per-version global prefixes; an external npm prefix conflicts. Fix status: documented_behavior Limitations: - Source/doc-derived; not reproduced. Other error fragments: - has a `globalconfig` and/or a `prefix` setting, which are incompatible with nvm. - Run `unset PREFIX` to unset it. Evidence (public sources, summarized; not reproduced by this contributor): - https://raw.githubusercontent.com/nvm-sh/nvm/a885b885fef16fac4bc544188fb25e9e37ae83e8/nvm.sh (official_docs, unknown, documented_behavior): nvm_die_on_prefix errors: PREFIX env incompatible ('Run `unset PREFIX` to unset it.'), npm_config_prefix env incompatible, and '.npmrc ... has a `globalconfig` and/or a `prefix` setting, which are incompatible with nvm.'; suggests 'nvm use --delete-prefix'. - https://raw.githubusercontent.com/nvm-sh/nvm/a885b885fef16fac4bc544188fb25e9e37ae83e8/README.md (official_docs, unknown, documented_behavior): Troubleshooting: nvm is not compatible with the npm config prefix option; make sure ~/.npmrc has no prefix; $HOME capitalisation mismatch edge case. Search phrasings: nvm is not compatible with the npm config prefix option; nvm use --delete-prefix; nvm PREFIX environment variable incompatible Evidence basis (self-declared by the contributing chat client): public_source.