diff --git a/rc/git-prompt.sh b/rc/git-prompt.sh
index f021731..4636afe 100644
--- a/rc/git-prompt.sh
+++ b/rc/git-prompt.sh
@@ -1,16 +1,39 @@
-if [ -d "$HOME/.bash-git-prompt" ]; then
-  GIT_PROMPT_PATH="$HOME/.bash-git-prompt"
-else
-  GIT_PROMPT_PATH="$LWS/opt/bash-git-prompt"
+# shellcheck shell=bash
+
+# Find gitprompt.sh across supported installation methods.
+
+GIT_PROMPT_CANDIDATES=(
+  "$HOME/.bash-git-prompt/gitprompt.sh"
+  "$LWS/opt/bash-git-prompt/gitprompt.sh"
+)
+
+# Detect active Homebrew prefix and add its bash-git-prompt path.
+# This covers macOS Apple Silicon/Intel, Linuxbrew and any custom prefix.
+if can_run brew; then
+  git_prompt_brew_prefix=$(brew --prefix bash-git-prompt 2>/dev/null) || git_prompt_brew_prefix=""
+  if [[ -n "$git_prompt_brew_prefix" ]]; then
+    GIT_PROMPT_CANDIDATES+=("$git_prompt_brew_prefix/share/gitprompt.sh")
+  fi
 fi
 
-GIT_PROMPT_INIT="$GIT_PROMPT_PATH/gitprompt.sh"
+GIT_PROMPT_INIT=""
+for candidate in "${GIT_PROMPT_CANDIDATES[@]}"; do
+  if [[ -f "$candidate" ]]; then
+    GIT_PROMPT_INIT="$candidate"
+    break
+  fi
+done
+
+if [[ -n "$GIT_PROMPT_INIT" ]]; then
+  # __GIT_PROMPT_DIR is required so gitprompt.sh can find themes and gitstatus.sh
+  __GIT_PROMPT_DIR="$(dirname "$GIT_PROMPT_INIT")"
+  export __GIT_PROMPT_DIR
 
-if [ -f "$GIT_PROMPT_INIT" ]; then
-  export GIT_PROMPT_PATH
   GIT_PROMPT_ONLY_IN_REPO=1
   GIT_PROMPT_USER_HOST="${LWS_PS1_USER_HOST}"
   GIT_PROMPT_START_USER="_LAST_COMMAND_INDICATOR_ ${GIT_PROMPT_USER_HOST}"
   GIT_PROMPT_START_ROOT="${GIT_PROMPT_START_USER}"
   source "$GIT_PROMPT_INIT"
 fi
+
+unset GIT_PROMPT_INIT git_prompt_brew_prefix