Brew Node conflict

[thoroc]

I have noticed that a recently installed tool had a newer version of Node installed and that version (v23.3.0) was being used in my current work project instead of the one set by fnm. I have attempted to remove both (installed through homebrew) and reinstall from fresh, taking care to remove the dirs ~/.local/share/fnm and ~/.local/state/fnm_multishells/.

However I cannot get fnm use 20.10 after having installed it through fnm. Instead I get this error message:

error: We can't find the necessary environment variables to replace the Node version.
You should setup your shell profile to evaluate `fnm env`, see https://github.com/Schniz/fnm#shell-setup on how to do this
Check out our documentation for more information: https://fnm.vercel.app

node --version
v23.3.0

fnm --version
fnm 1.38.1

fnm ls
* v20.10.0 default
* v22.12.0
* system

which node
/opt/homebrew/opt/npm/bin/node

fnm env
export PATH="/Users/thoroc/.local/state/fnm_multishells/75024_1733313406220/bin":$PATH
export FNM_MULTISHELL_PATH="/Users/thoroc/.local/state/fnm_multishells/75024_1733313406220"
export FNM_VERSION_FILE_STRATEGY="local"
export FNM_DIR="/Users/thoroc/.local/share/fnm"
export FNM_LOGLEVEL="info"
export FNM_NODE_DIST_MIRROR="https://nodejs.org/dist"
export FNM_COREPACK_ENABLED="false"
export FNM_RESOLVE_ENGINES="true"
export FNM_ARCH="arm64"
rehash

[thoroc]

Followed the instruction on #824 (comment) to add the env via .zshrc. That seems to have fixed the auto change on cd, and I make use of the fnm use <version>:

fnm use 22.10.0
Using Node v22.10.0

However node is still the system one.

[thoroc]

Uninstalled node through homebrew: brew uninstall node and it is now happy, but now no system version of node is installed on the machine.

[thoroc]

fnm ls
* v20.10.0 default
* v20.18.1 Iron
* v22.10.0
* v22.12.0 Jod
* system

fnm use system
Bypassing fnm: using system node

node --version
zsh: command not found: node

fnm use 
Using Node v22.10.0

node --version
v22.10.0

which node
/Users/<user>/.local/state/fnm_multishells/80576_1733316727129/bin/node