autoload -Uz compinit && compinit;
# load bashcompinit for some old bash completions
autoload bashcompinit && bashcompinit

# partial completion suggestions
zstyle ':completion:*' list-suffixes
zstyle ':completion:*' expand prefix suffix

# Case insensitive
zstyle ':completion:*' matcher-list 'm:{[:lower:][:upper:]}={[:upper:][:lower:]}' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]} l:|=* r:|=*' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]} l:|=* r:|=*' 'm:{[:lower:][:upper:]}={[:upper:][:lower:]} l:|=* r:|=*'