diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 0dcf604..f4a3184 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -21,6 +21,7 @@ jobs:
     - name: Build
       run: cargo build --release
     - name: Upload files to a GitHub release
+      if: github.event_name == 'push'
       uses: svenstaro/upload-release-action@2.9.0
       with:
         repo_token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/nests/mac/.shenv b/nests/mac/.shenv
index 4742719..6a77233 100644
--- a/nests/mac/.shenv
+++ b/nests/mac/.shenv
@@ -1,42 +1,14 @@
 #! /bin/sh
 
-echo "Welcome Tylord"
-
-# Owl Conifg
-export OWL_PATH="/Users/tylertracy/owl"
-export OWL_CONFIG_PATH="$OWL_PATH/nests/mac/nest.json"
-
-# XDG vars
-export XDG_CONFIG_HOME="$HOME/.config"
-export XDG_CACHE_HOME="$HOME/.cache"
-export XDG_DATA_HOME="$HOME/.local/share"
-export XDG_STATE_HOME="$HOME/.local/state"
-export XDG_RUNTIME_DIR=/tmp/$(whoami)/runtime_dir
-mkdir -p $XDG_RUNTIME_DIR
-
-# Programs
-export EDITOR='vim'
-
-# Local bin
-export PATH="$HOME/.local/bin:$PATH"
-
-
-# Load aliases
-source ~/.config/alias/main
-
-# Run owl-rc
-for file in ~/.config/owl-rc/*; do
-    [ -f "$file" ] && source "$file"
-done
-
-# Brew
-eval "$(/opt/homebrew/bin/brew shellenv)"
-
-# Bun
-[ -s "/Users/tylertracy/.bun/_bun" ] && source "/Users/tylertracy/.bun/_bun"
-export BUN_INSTALL="$HOME/.bun"
-export PATH="$BUN_INSTALL/bin:$PATH"
-
-# Modular
-export MODULAR_HOME="$HOME/.modular"
-export PATH="$MODULAR_HOME/pkg/packages.modular.com_mojo/bin:$PATH"
+# Owl config
+export OWL_PATH="$HOME/owl"
+
+# Editor
+export EDITOR='nvim'
+
+# Homebrew (Apple Silicon and Intel paths; conditional so missing brew is silent)
+if [ -x /opt/homebrew/bin/brew ]; then
+    eval "$(/opt/homebrew/bin/brew shellenv)"
+elif [ -x /usr/local/bin/brew ]; then
+    eval "$(/usr/local/bin/brew shellenv)"
+fi
diff --git a/nests/mac/setup.json b/nests/mac/setup.json
index f8a2fc2..15ea6de 100644
--- a/nests/mac/setup.json
+++ b/nests/mac/setup.json
@@ -1,27 +1,29 @@
 {
   "links": [
     {
-      "source": "target/debug/owl",
-      "target": "~/.local/bin/owl"
-    },
-    {
-      "source": "common/config/.vimrc",
+      "source": "common:config/.vimrc",
       "target": "~/.vimrc"
     }
   ],
   "dependencies": [
+    "owl",
     "git",
     "node",
     "nvim",
     "tmux",
     "zsh-ohmy",
     "ranger",
-    "notes"
+    "notes",
+    "bun",
+    "rust",
+    "claude-code",
+    "codex"
   ],
   "rc_scripts": [
     "common:fzf.sh",
     "common:base-aliases.sh",
+    "common:claude.sh",
     "local:.shenv",
     "local:.alias"
   ]
-}
\ No newline at end of file
+}
diff --git a/setups/claude-code/install.sh b/setups/claude-code/install.sh
index 8ba7ea0..3f92295 100755
--- a/setups/claude-code/install.sh
+++ b/setups/claude-code/install.sh
@@ -1,5 +1,12 @@
 #!/bin/bash
 set -euo pipefail
 
+# Make sure bun is on PATH (the rc script that adds it isn't sourced inside install scripts)
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+if [ -f "$SCRIPT_DIR/../bun/bun-rc.sh" ]; then
+    # shellcheck disable=SC1091
+    source "$SCRIPT_DIR/../bun/bun-rc.sh"
+fi
+
 # Install claude code globally via bun
 bun install -g @anthropic-ai/claude-code
diff --git a/setups/codex/install.sh b/setups/codex/install.sh
new file mode 100755
index 0000000..05e26c8
--- /dev/null
+++ b/setups/codex/install.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+set -euo pipefail
+
+# Make sure bun is on PATH (the rc script that adds it isn't sourced inside install scripts)
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+if [ -f "$SCRIPT_DIR/../bun/bun-rc.sh" ]; then
+    # shellcheck disable=SC1091
+    source "$SCRIPT_DIR/../bun/bun-rc.sh"
+fi
+
+# Install OpenAI Codex CLI globally via bun
+bun install -g @openai/codex
diff --git a/setups/codex/setup.json b/setups/codex/setup.json
new file mode 100644
index 0000000..9fcc0db
--- /dev/null
+++ b/setups/codex/setup.json
@@ -0,0 +1,5 @@
+{
+  "name": "codex",
+  "dependencies": ["bun"],
+  "install": "local:install.sh"
+}
diff --git a/setups/nvim/install.sh b/setups/nvim/install.sh
index ff23e4f..85e1360 100755
--- a/setups/nvim/install.sh
+++ b/setups/nvim/install.sh
@@ -1,4 +1,48 @@
+#!/bin/bash
+set -euo pipefail
 
-curl -L https://github.com/neovim/neovim/releases/download/v0.11.4/nvim-linux-x86_64.appimage -o /tmp/nvim-download
-chmod +x /tmp/nvim-download
-mv /tmp/nvim-download ~/.local/bin/nvim
+if command -v nvim &> /dev/null; then
+    echo "nvim already installed at $(command -v nvim). Skipping."
+    exit 0
+fi
+
+NVIM_VERSION="v0.11.4"
+mkdir -p "$HOME/.local/bin"
+
+case "$(uname -s)" in
+    Linux)
+        ARCH=$(uname -m)
+        URL="https://github.com/neovim/neovim/releases/download/${NVIM_VERSION}/nvim-linux-${ARCH}.appimage"
+        echo "Downloading neovim AppImage for Linux ($ARCH)..."
+        curl -L "$URL" -o /tmp/nvim-download
+        chmod +x /tmp/nvim-download
+        mv /tmp/nvim-download "$HOME/.local/bin/nvim"
+        ;;
+    Darwin)
+        if command -v brew &> /dev/null; then
+            echo "Installing neovim via Homebrew..."
+            brew install neovim
+        else
+            ARCH=$(uname -m)
+            case "$ARCH" in
+                arm64) ASSET="nvim-macos-arm64" ;;
+                x86_64) ASSET="nvim-macos-x86_64" ;;
+                *) echo "Unsupported macOS arch: $ARCH"; exit 1 ;;
+            esac
+            URL="https://github.com/neovim/neovim/releases/download/${NVIM_VERSION}/${ASSET}.tar.gz"
+            echo "Downloading neovim tarball for macOS ($ARCH)..."
+            TMPDIR=$(mktemp -d)
+            curl -L "$URL" -o "$TMPDIR/nvim.tar.gz"
+            tar -xzf "$TMPDIR/nvim.tar.gz" -C "$TMPDIR"
+            mkdir -p "$HOME/.local/share/nvim-dist"
+            rm -rf "$HOME/.local/share/nvim-dist/${ASSET}"
+            mv "$TMPDIR/${ASSET}" "$HOME/.local/share/nvim-dist/${ASSET}"
+            ln -sf "$HOME/.local/share/nvim-dist/${ASSET}/bin/nvim" "$HOME/.local/bin/nvim"
+            rm -rf "$TMPDIR"
+        fi
+        ;;
+    *)
+        echo "Unsupported OS: $(uname -s)"
+        exit 1
+        ;;
+esac
diff --git a/setups/owl/install.sh b/setups/owl/install.sh
index c82cda0..58e30ab 100755
--- a/setups/owl/install.sh
+++ b/setups/owl/install.sh
@@ -2,14 +2,15 @@
 
 set -e
 
-if ! command -v owl >/dev/null 2>&1; then
+if command -v owl >/dev/null 2>&1 || [ -x "$HOME/.local/bin/owl" ] || [ -x "/usr/local/bin/owl" ]; then
+    echo "owl already installed"
+else
     echo "Installing owl binary from GitHub releases..."
     tmp=$(mktemp)
     curl -fsSL https://github.com/tylerthecoder/owl/releases/download/main/owl -o "$tmp"
     chmod +x "$tmp"
-    sudo mv "$tmp" /usr/local/bin/owl
-else
-    echo "owl already installed"
+    mkdir -p "$HOME/.local/bin"
+    mv "$tmp" "$HOME/.local/bin/owl"
 fi
 
 # Note: Dependencies (git, rust) are handled by the nest/setup that depends on owl
diff --git a/setups/rust/install.sh b/setups/rust/install.sh
index 0f9d000..b8b0458 100755
--- a/setups/rust/install.sh
+++ b/setups/rust/install.sh
@@ -20,6 +20,10 @@ else
         # Ubuntu/Debian
         echo "Detected Ubuntu/Debian, installing rustup via official installer..."
         curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+    elif [ "$(uname)" = "Darwin" ]; then
+        # macOS
+        echo "Detected macOS, installing rustup via official installer..."
+        curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
     else
         echo "Unsupported operating system. Please install rustup manually."
         exit 1
diff --git a/setups/zsh-ohmy/.zshrc b/setups/zsh-ohmy/.zshrc
index 2dd3a51..e276951 100644
--- a/setups/zsh-ohmy/.zshrc
+++ b/setups/zsh-ohmy/.zshrc
@@ -1,6 +1,5 @@
-
-# Source environment variables
-source ~/.shenv
+# Source owl startup script (XDG vars, PATH, and ~/.config/owl/rc/*)
+[ -f "$HOME/owl/owl-start.sh" ] && source "$HOME/owl/owl-start.sh"
 
 export ZSH="$HOME/.oh-my-zsh"
 
@@ -10,9 +9,9 @@ zstyle ':omz:update' mode auto # update automatically without asking
 
 zstyle ':omz:update' frequency 13 # How often to auto-update (in days).
 
-plugins=(git git-trim colored-man-pages colorize pip python brew zsh-autosuggestions zsh-syntax-highlighting)
+plugins=(git colored-man-pages colorize pip python brew zsh-autosuggestions zsh-syntax-highlighting)
 
-source $ZSH/oh-my-zsh.sh
+[ -f "$ZSH/oh-my-zsh.sh" ] && source "$ZSH/oh-my-zsh.sh"
 
 # Enable command auto-correction.
 ENABLE_CORRECTION="true"
@@ -22,18 +21,10 @@ autoload -U edit-command-line
 zle -N edit-command-line
 bindkey -M vicmd v edit-command-line
 
-# Uncomment the following line to display red dots whilst waiting for completion.
-# You can also set it to another string to have that shown instead of the default red dots.
-# e.g. COMPLETION_WAITING_DOTS="%F{yellow}waiting...%f"
-# Caution: this setting can cause issues with multiline prompts in zsh < 5.7.1 (see #5765)
 COMPLETION_WAITING_DOTS="true"
 
-# Kube completions
-source <(kubectl completion zsh)
-
+# Kubectl completions (only if installed)
+command -v kubectl >/dev/null 2>&1 && source <(kubectl completion zsh)
 
 # bun completions
-[ -s "/Users/tylertracy/.bun/_bun" ] && source "/Users/tylertracy/.bun/_bun"
-
-### MANAGED BY RANCHER DESKTOP START (DO NOT EDIT)
-export PATH="/Users/tylertracy/.rd/bin:$PATH"
+[ -s "$HOME/.bun/_bun" ] && source "$HOME/.bun/_bun"
diff --git a/setups/zsh-ohmy/install.sh b/setups/zsh-ohmy/install.sh
new file mode 100755
index 0000000..89c290e
--- /dev/null
+++ b/setups/zsh-ohmy/install.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+set -euo pipefail
+
+ZSH_DIR="${ZSH:-$HOME/.oh-my-zsh}"
+ZSH_CUSTOM="${ZSH_CUSTOM:-$ZSH_DIR/custom}"
+
+if [ ! -d "$ZSH_DIR" ]; then
+  echo "Installing oh-my-zsh..."
+  # KEEP_ZSHRC=yes so the installer doesn't overwrite our owl-managed ~/.zshrc symlink
+  RUNZSH=no CHSH=no KEEP_ZSHRC=yes sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended
+else
+  echo "oh-my-zsh already installed at $ZSH_DIR"
+fi
+
+if [ ! -d "$ZSH_CUSTOM/plugins/zsh-autosuggestions" ]; then
+  echo "Installing zsh-autosuggestions..."
+  git clone https://github.com/zsh-users/zsh-autosuggestions "$ZSH_CUSTOM/plugins/zsh-autosuggestions"
+fi
+
+if [ ! -d "$ZSH_CUSTOM/plugins/zsh-syntax-highlighting" ]; then
+  echo "Installing zsh-syntax-highlighting..."
+  git clone https://github.com/zsh-users/zsh-syntax-highlighting "$ZSH_CUSTOM/plugins/zsh-syntax-highlighting"
+fi
diff --git a/setups/zsh-ohmy/setup.json b/setups/zsh-ohmy/setup.json
index 882ab93..5b5c49e 100644
--- a/setups/zsh-ohmy/setup.json
+++ b/setups/zsh-ohmy/setup.json
@@ -1,5 +1,6 @@
 {
   "name": "zsh",
+  "install": "local:install.sh",
   "links": [
     {
       "source": "setups/zsh-ohmy/.zshrc",