diff --git a/10-bun-path b/10-bun-path
index f582a77..940d56a 100755
--- a/10-bun-path
+++ b/10-bun-path
@@ -1,3 +1,3 @@
 # shellcheck shell=bash
-# Add Bun (a fast JavaScript runtime and package manager) to PATH
+# Bun — fast JavaScript runtime and package manager
 path_append "$HOME/.bun/bin"
diff --git a/10-local-path b/10-local-path
new file mode 100755
index 0000000..ae25591
--- /dev/null
+++ b/10-local-path
@@ -0,0 +1,3 @@
+# shellcheck shell=bash
+# Add ~/.local/bin to PATH (pip, pipx, user-installed tools)
+path_prepend "$HOME/.local/bin"
diff --git a/10-maestro-path b/10-maestro-path
new file mode 100755
index 0000000..cda345c
--- /dev/null
+++ b/10-maestro-path
@@ -0,0 +1,3 @@
+# shellcheck shell=bash
+# Add Maestro (mobile UI testing framework) to PATH
+path_append "$HOME/.maestro/bin"
diff --git a/20-rbenv b/20-rbenv
new file mode 100755
index 0000000..484bf98
--- /dev/null
+++ b/20-rbenv
@@ -0,0 +1,5 @@
+# shellcheck shell=bash
+# Initialize rbenv (Ruby version manager)
+if [[ -x "$HOME/.rbenv/bin/rbenv" ]]; then
+    eval "$("$HOME/.rbenv/bin/rbenv" init - --no-rehash bash)"
+fi
diff --git a/30-shell-options b/30-shell-options
new file mode 100755
index 0000000..a1c31ec
--- /dev/null
+++ b/30-shell-options
@@ -0,0 +1,21 @@
+# shellcheck shell=bash
+# Shell options: history, window size, and color support
+
+# History
+HISTCONTROL=ignoredups
+shopt -s histappend
+HISTSIZE=1000
+HISTFILESIZE=2000
+
+# Update LINES and COLUMNS after each command
+shopt -s checkwinsize
+
+# Enable color support for ls
+if command -v dircolors &>/dev/null; then
+    if [[ -r ~/.dircolors ]]; then
+        eval "$(dircolors -b ~/.dircolors)"
+    else
+        eval "$(dircolors -b)"
+    fi
+    alias ls='ls --color=auto'
+fi