update fnm script

install.nu

@@ -1,9 +1,12 @@
-let host_name = (sys host | get name)
-let home_path = if host_name == "Windows" {$env.USERPROFILE} else {$env.HOME}
+let home_path = match $nu.os-info.name {
+    "windows" => $"($env.USERPROFILE)",
+    _ => $"($env.HOME)",
+  }
+
 let dotfiles_symlink_path = $"($home_path)/.config/dotfiles"
 
 if (($dotfiles_symlink_path | path exists) != true) {
-    if host_name == "Windows" {
+    if $nu.os-info.name == "windows" {
         ^mklink /d $"($dotfiles_symlink_path)" $"($env.PWD)"
     } else {
         ^ln -s $env.PWD $dotfiles_symlink_path

nushell/config.nu

@@ -9,7 +9,7 @@ use "~/.config/dotfiles/nushell/nu_scripts/custom-completions/git/git-completion
 use "~/.config/dotfiles/nushell/nu_scripts/custom-completions/npm/npm-completions.nu" *
 use "~/.config/dotfiles/nushell/nu_scripts/custom-completions/scoop/scoop-completions.nu" *
 
-use "~/.config/dotfiles/nushell/nu_scripts/modules/fnm/fnm.nu"
+source ./modules/fnm/fnm.nu
 
 # Load rbenv
 # TODO: Move to ~/.nushellrc for MacOS

nushell/modules/fnm/fnm.nu

@@ -0,0 +1,23 @@
+if not (which fnm | is-empty) {
+  ^fnm env --resolve-engines --corepack-enabled --json | from json | load-env
+
+  let node_path = match $nu.os-info.name {
+    "windows" => $"($env.FNM_MULTISHELL_PATH)",
+    _ => $"($env.FNM_MULTISHELL_PATH)/bin",
+  }
+  $env.PATH = ($env.PATH | prepend [ $node_path ])
+}
+
+$env.config = ($env.config | merge {
+  hooks: {
+    env_change: {
+      PWD: [{
+        if ([.nvmrc .node-version] | path exists | any { |it| $it }) {
+          fnm use
+        } else {
+          fnm --log-level=quiet use default
+        }
+      }]
+    }
+  }
+})