diff --git a/dotfiles/zsh/exports.zsh b/dotfiles/zsh/exports.zsh
index 0167338..96e24b6 100644
--- a/dotfiles/zsh/exports.zsh
+++ b/dotfiles/zsh/exports.zsh
@@ -1,58 +1,76 @@
 #!/bin/zsh
 
-if hash vim 2>/dev/null; then
-	export EDITOR=vim
+# -------------------------
+# Editor
+# -------------------------
+if command -v vim >/dev/null 2>&1; then
+  export EDITOR=vim
 else
-	export EDITOR=vi
+  export EDITOR=vi
 fi
 
-if hash clang 2>/dev/null; then
-	export CC=$(which clang)
-else
-	export CC=$(which gcc)
+# -------------------------
+# C / C++ compiler defaults
+# -------------------------
+if command -v clang >/dev/null 2>&1; then
+  export CC="$(command -v clang)"
+elif command -v gcc >/dev/null 2>&1; then
+  export CC="$(command -v gcc)"
 fi
 
-if hash clang++ 2>/dev/null; then
-	export CXX=$(which clang++)
-else
-	export CXX=$(which g++)
+if command -v clang++ >/dev/null 2>&1; then
+  export CXX="$(command -v clang++)"
+elif command -v g++ >/dev/null 2>&1; then
+  export CXX="$(command -v g++)"
 fi
 
-export OPENSSL_ROOT_DIR=$(which openssl)
-
-# Add openJDK to path
-export PATH="/usr/local/opt/openjdk/bin:$PATH"
-
-# Ignore duplicates in history to make history less of a hassle to use.
+# -------------------------
+# History
+# -------------------------
+# Note: HISTCONTROL is bash-specific, but harmless.
+# ZSH history dedupe should usually be configured with setopt elsewhere.
 export HISTCONTROL=ignoredups
 
-# If go is installed, set the $GOPATH to the projects directory created above.
-if which go > /dev/null; then
-export GOPATH=$HOME/.go
-export PATH=${PATH}:`go env GOPATH`/bin
-fi
+# -------------------------
+# User paths
+# -------------------------
+path=("$HOME/bin" $path)
+path=("$HOME/.local/bin" $path)
 
-if [ -d "$HOME/.rvm" ]; then
-	export PATH="$PATH:$HOME/.rvm/bin"
+# -------------------------
+# Go
+# -------------------------
+if command -v go >/dev/null 2>&1; then
+  export GOPATH="$HOME/.go"
+  path=("$(go env GOPATH)/bin" $path)
 fi
 
-if [ -f "$HOME/.cargo/env" ]; then
-	. "$HOME/.cargo/env"
+if [[ "$OSTYPE" == "linux-gnu"* ]]; then
+  # If the Go install guide was followed for Linux,
+  # /usr/local/go will contain the go binary.
+  [[ -d "/usr/local/go/bin" ]] && path=("/usr/local/go/bin" $path)
 fi
 
-if [[ "$OSTYPE" == "linux-gnu" ]]; then
-	# If the Go install guide was followed for Linux
-	# /usr/local/go will contain the go binary.
-	export PATH=$PATH:/usr/local/go/bin
+# -------------------------
+# Ruby / RVM
+# -------------------------
+if [[ -d "$HOME/.rvm/bin" ]]; then
+  path=("$HOME/.rvm/bin" $path)
 fi
 
-if [[ "$OSTYPE" == "darwin"* ]]; then
-  # Enable homebrew openssl support
-  export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/opt/openssl/lib/
-  export PATH="/usr/local/opt/llvm/bin:$PATH"
-  export PATH="/usr/local/opt/qt/bin:$PATH"
-  export PATH="/usr/local/opt/tcl-tk/bin:$PATH"
+# -----------------------------
+# Rust / Cargo - Let rustup win
+# -----------------------------
+if [[ -f "$HOME/.cargo/env" ]]; then
+  . "$HOME/.cargo/env"
 fi
 
-export PATH=$HOME/bin:/usr/local/bin:$PATH
-
+if [[ -d "$HOME/.cargo/bin" ]]; then
+  path=("$HOME/.cargo/bin" $path)
+fi
+# -------------------------
+# OpenSSL fallback
+# -------------------------
+if command -v openssl >/dev/null 2>&1; then
+  export OPENSSL_BIN="$(command -v openssl)"
+fi
diff --git a/dotfiles/zsh/macrc b/dotfiles/zsh/macrc
new file mode 100644
index 0000000..2b6c2c8
--- /dev/null
+++ b/dotfiles/zsh/macrc
@@ -0,0 +1,51 @@
+#!/bin/zsh
+
+# -------------------------
+# macOS-specific setup
+# -------------------------
+
+# Prefer Apple Silicon Homebrew, fall back to Intel Homebrew.
+if [[ -d "/opt/homebrew" ]]; then
+  export HOMEBREW_PREFIX="/opt/homebrew"
+elif [[ -d "/usr/local/Homebrew" || -d "/usr/local/Cellar" ]]; then
+  export HOMEBREW_PREFIX="/usr/local"
+fi
+
+if [[ -n "$HOMEBREW_PREFIX" ]]; then
+  [[ -d "$HOMEBREW_PREFIX/bin" ]] && path=("$HOMEBREW_PREFIX/bin" $path)
+  [[ -d "$HOMEBREW_PREFIX/sbin" ]] && path=("$HOMEBREW_PREFIX/sbin" $path)
+
+  # LLVM / clangd / clang-format
+  if [[ -d "$HOMEBREW_PREFIX/opt/llvm/bin" ]]; then
+    path=("$HOMEBREW_PREFIX/opt/llvm/bin" $path)
+    export LDFLAGS="-L$HOMEBREW_PREFIX/opt/llvm/lib ${LDFLAGS:-}"
+    export CPPFLAGS="-I$HOMEBREW_PREFIX/opt/llvm/include ${CPPFLAGS:-}"
+  fi
+
+  # OpenSSL
+  if [[ -d "$HOMEBREW_PREFIX/opt/openssl@3" ]]; then
+    export OPENSSL_ROOT_DIR="$HOMEBREW_PREFIX/opt/openssl@3"
+    export LDFLAGS="-L$OPENSSL_ROOT_DIR/lib ${LDFLAGS:-}"
+    export CPPFLAGS="-I$OPENSSL_ROOT_DIR/include ${CPPFLAGS:-}"
+    export PKG_CONFIG_PATH="$OPENSSL_ROOT_DIR/lib/pkgconfig:${PKG_CONFIG_PATH:-}"
+  elif [[ -d "$HOMEBREW_PREFIX/opt/openssl" ]]; then
+    export OPENSSL_ROOT_DIR="$HOMEBREW_PREFIX/opt/openssl"
+    export LDFLAGS="-L$OPENSSL_ROOT_DIR/lib ${LDFLAGS:-}"
+    export CPPFLAGS="-I$OPENSSL_ROOT_DIR/include ${CPPFLAGS:-}"
+    export PKG_CONFIG_PATH="$OPENSSL_ROOT_DIR/lib/pkgconfig:${PKG_CONFIG_PATH:-}"
+  fi
+
+  # OpenJDK
+  [[ -d "$HOMEBREW_PREFIX/opt/openjdk/bin" ]] && path=("$HOMEBREW_PREFIX/opt/openjdk/bin" $path)
+
+  # Qt
+  [[ -d "$HOMEBREW_PREFIX/opt/qt/bin" ]] && path=("$HOMEBREW_PREFIX/opt/qt/bin" $path)
+
+  # Tcl/Tk
+  [[ -d "$HOMEBREW_PREFIX/opt/tcl-tk/bin" ]] && path=("$HOMEBREW_PREFIX/opt/tcl-tk/bin" $path)
+fi
+
+# Ghostty CLI
+if [[ -d "/Applications/Ghostty.app/Contents/MacOS" ]]; then
+  path=("/Applications/Ghostty.app/Contents/MacOS" $path)
+fi
diff --git a/dotfiles/zsh/zshrc b/dotfiles/zsh/zshrc
index b0d4deb..2d1143b 100644
--- a/dotfiles/zsh/zshrc
+++ b/dotfiles/zsh/zshrc
@@ -102,7 +102,7 @@ export PATH="$PATH:$HOME/.local/bin"
 # Ocaml
 test -r $HOME/.opam/opam-init/init.sh && . $HOME/.opam/opam-init/init.sh > /dev/null 2> /dev/null || true
 
-# Rust
-if [ -f "$HOME/.cargo/env" ]; then
-	. "$HOME/.cargo/env"
-fi
+# -------------------------
+# Deduplicate PATH
+# -------------------------
+typeset -U path PATH