1. Executive Summary zgen (Zsh GENerator) is an open-source plugin manager for the Z shell (Zsh), designed to simplify the management of plugins, themes, and shell configurations. Developed to address the performance and usability limitations of earlier frameworks like Oh My Zsh, zgen focuses on speed , simplicity , and minimalism . It achieves rapid shell startup times by generating a static .zshrc file that loads all plugins at once, rather than dynamically loading them on each shell initialization.
# Clone zgen if not present ZGEN_DIR="$HOME/.zgen" if [[ ! -d "$ZGEN_DIR" ]]; then git clone https://github.com/tarjoilijana/zgen.git "$ZGEN_DIR" fi source "$ZGEN_DIR/zgen.zsh" if ! zgen saved; then zgen oh-my-zsh zgen oh-my-zsh plugin git zgen oh-my-zsh plugin sudo zgen load zsh-users/zsh-syntax-highlighting zgen load zsh-users/zsh-autosuggestions zgen load sindresorhus/pure It achieves rapid shell startup times by generating a static
| Manager | Mean Startup Time | Std Dev | |---------|------------------|---------| | Oh My Zsh | 1.2 sec | ±0.15 | | Antigen | 0.85 sec | ±0.10 | | | 0.08 sec | ±0.02 | | zgenom | 0.09 sec | ±0.02 | | Native Zsh (no plugins) | 0.02 sec | ±0.005 | zgen saved; then zgen oh-my-zsh zgen oh-my-zsh plugin
