zsh: add dev branch toggle (usedev/usemaster)

zsh/zshrc

@@ -2,7 +2,8 @@ export ZSH_CONFIG=$HOME/.config/zsh
 export OHMYZSH=$ZSH_CONFIG/oh-my-zsh
 export OHMYZSH_CUSTOM=$OHMYZSH/custom
 
-export ZSHRC_GIT="https://git.jeremymcclure.com/jeremy/scripts/raw/branch/master/zsh/"
+export ZSHRC_BRANCH="${ZSHRC_BRANCH:-$(cat "$ZSH_CONFIG/branch" 2>/dev/null || echo master)}"
+export ZSHRC_GIT="https://git.jeremymcclure.com/jeremy/scripts/raw/branch/${ZSHRC_BRANCH}/zsh/"
 
 export ZSHRC_URL="$ZSHRC_GIT/zshrc"
 export ZSHRC_BOOTSTRAP_URL="$ZSHRC_GIT/zshrc-bootstrap.zsh"
@@ -14,6 +15,25 @@ export ZSHRC_BOOTSTRAP="$ZSH_CONFIG/.bootstrapped"
 [[ -d "$HOME/AppImages" ]] && path+=("$HOME/AppImages")
 [[ -d "$HOME/.opencode/bin" ]] && path+=("$HOME/.opencode/bin")
 
+use_dev_branch(){
+  mkdir -p "$ZSH_CONFIG"
+  echo "dev" > "$ZSH_CONFIG/branch"
+  export ZSHRC_BRANCH=dev
+  export ZSHRC_GIT="https://git.jeremymcclure.com/jeremy/scripts/raw/branch/dev/zsh/"
+  export ZSHRC_URL="$ZSHRC_GIT/zshrc"
+  export ZSHRC_BOOTSTRAP_URL="$ZSHRC_GIT/zshrc-bootstrap.zsh"
+  echo "Switched to dev branch. Run 'update_zshrc' to pull latest."
+}
+
+use_master_branch(){
+  rm -f "$ZSH_CONFIG/branch"
+  export ZSHRC_BRANCH=master
+  export ZSHRC_GIT="https://git.jeremymcclure.com/jeremy/scripts/raw/branch/master/zsh/"
+  export ZSHRC_URL="$ZSHRC_GIT/zshrc"
+  export ZSHRC_BOOTSTRAP_URL="$ZSHRC_GIT/zshrc-bootstrap.zsh"
+  echo "Switched to master branch. Run 'update_zshrc' to pull latest."
+}
+
 update_zshrc(){
   local tmp=/tmp/.zshrc.$$
   curl -fsSL --connect-timeout 5 --max-time 10 "$ZSHRC_URL" -o "$tmp" 2>/dev/null || return
@@ -170,6 +190,8 @@ command -v delta >/dev/null && export GIT_PAGER='delta'
 
 alias c='clear'
 alias q="exit"
+alias usedev='use_dev_branch'
+alias usemaster='use_master_branch'
 alias nbstat=$'netbird status --json | jq -r \'.peers.details[]? | [(.hostname // .fqdn), .netbirdIp, .status] | @tsv\' | column -t -s $\'\\t\''   
 alias open-ports="ss -tulpn | grep LISTEN"
 alias yeet='yay -Rcs'