macos update instructions

README.md

@@ -64,3 +64,44 @@ rsync -av --exclude='.git' . root@HOST:/etc/nixos
 ```bash
 sudo nixos-rebuild switch
 ```
+
+# Nix Home Manager Configuration - macOS
+
+## Upgrade
+
+```bash
+# Update System Channels
+sudo nix-channel --add https://nixos.org/channels/nixpkgs-24.11-darwin nixpkgs
+sudo nix-channel --update
+
+# Update Home Manager
+nix-channel --add https://github.com/nix-community/home-manager/archive/release-24.11.tar.gz home-manager
+nix-channel --update
+
+# Link Repo
+ln -s /Users/evanreichard/Development/git/personal/nix/home-manager ~/.config/home-manager
+
+# Build Home Manager
+home-manager switch
+```
+
+## Clean Garbage
+
+NOTE: This will remove previous generations
+
+```bash
+sudo nix-collect-garbage --delete-old
+nix-collect-garbage --delete-old
+```
+
+## OS Update
+
+`/etc/bashrc` may get overridden. To properly load Nix, prepend the following:
+
+```bash
+# Nix
+if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
+  . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+fi
+# End Nix
+```